Compare Gas Boilers

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Gas
(722)
Oil
(382)

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Combi
(428)
Regular
(332)
System
(258)

Manufacturer

Alpha
(47)
Ariston
(34)
ATAG
(17)
Baxi
(61)
Biasi
(31)
Daikin
(3)
Ferroli
(32)
Glow-worm
(49)
Ideal
(74)
Intergas
(24)
Johnson and Starley
(6)
Keston
(5)
Main
(12)
Navien
(8)
Potterton
(74)
Ravenheat
(25)
Vaillant
(77)
Viessmann
(29)
Vokera
(26)
Warmhaus
(12)
Worcester Bosch
(69)
Zanussi
(7)

Clear search

Alpha

Boiler Model	kW	Efficiency	Warranty	Typical Price
Alpha CD28C Combi Gas Boiler COMPARE	28kw	90.3%	5 years	£781	COMPARE
Alpha CD35C Combi Gas Boiler COMPARE	35kw	90.5%	5 years	£850	COMPARE
Alpha CD28X Combi Gas Boiler COMPARE	28kw	88.50%	2 years	£690	COMPARE
Alpha CD25X Combi Gas Boiler COMPARE	25kw	88.60%	2 years	£745	COMPARE
Alpha CD25C Combi Gas Boiler COMPARE	25kw	89.00%	5 years	£850	COMPARE
Alpha CD50 Combi Gas Boiler COMPARE	50kw	89.30%	3 years	£1900	COMPARE
Alpha CD24R Regular Gas Boiler COMPARE	24kw	88.6%	3 years	£825	COMPARE
Alpha CD13R Regular Gas Boiler COMPARE	13kw	88.5%	3 years	£675	COMPARE
Alpha CD28S System Gas Boiler COMPARE	28kw	88.80%	3 years	£840	COMPARE
Alpha CD18R Regular Gas Boiler COMPARE	18kw	88.4%	3 years	£763	COMPARE
Alpha CD20S System Gas Boiler COMPARE	20kw	88.8%	3 years	£770	COMPARE
Alpha CD12S System Gas Boiler COMPARE	12kw	88.60%	3 years	£760	COMPARE
Alpha InTec2 26CE Combi Gas Boiler COMPARE	26kw	88.8%	7 years	£713	COMPARE
Alpha InTec2 30CE Combi Gas Boiler COMPARE	30kw	88.8%	7 years	£818	COMPARE
Alpha InTec2 35CE Combi Gas Boiler COMPARE	35kw	88.9%	7 years	£883	COMPARE
Alpha InTec 30C Combi Gas Boiler COMPARE	30kw	88.2%	7 years	£895	COMPARE
Alpha InTec 34C Combi Gas Boiler COMPARE	34kw	88.8%	7 years	£975	COMPARE
Alpha InTec2 25XE Combi Gas Boiler COMPARE	25kw	88.8%	7 years	£645	COMPARE
Alpha InTec2 28XE Combi Gas Boiler COMPARE	28kw	88.8%	4 years	£675	COMPARE
Alpha Eco2 Plus Combi Gas Boiler COMPARE	28kw	88.8%	4 years	£750	COMPARE
Alpha InTec2 20SE System Gas Boiler COMPARE	20kw	88.9%	5 years	£795	COMPARE
Alpha InTec2 30SE System Gas Boiler COMPARE	30kw	89%	5 years	£827	COMPARE
Alpha InTec 12S System Gas Boiler COMPARE	13kw	88.80%	3 years	£800	COMPARE
Alpha InTec 18S System Gas Boiler COMPARE	20kw	88.80%	3 years	£900	COMPARE
Alpha InTec 28S System Gas Boiler COMPARE	30kw	89.00%	3 years	£900	COMPARE
Alpha E-TEC 28kW Combi Gas Boiler COMPARE	28kw	88.9%	5 years	£675	COMPARE
Alpha E-TEC 33kW Combi Gas Boiler COMPARE	33kw	89%	2 years	£720	COMPARE
Alpha EVOKE 28kW Combi Gas Boiler COMPARE	28kw	88.9%	5 years	£625	COMPARE
Alpha EVOKE 33kW Combi Gas Boiler COMPARE	33kw	89%	5 years	£655	COMPARE
Alpha InTec Gs 30kW Combi Gas Boiler COMPARE	30kw	88.8%	5 years	£1800	COMPARE
Alpha InTec Gs 40kW Combi Gas Boiler COMPARE	40kw	88.8%	5 years	£2500	COMPARE
Alpha ProTec Plus 50 System Gas Boiler COMPARE	54kw	88.5%	3 years	£983	COMPARE
Alpha ProTec Plus 70 System Gas Boiler COMPARE	74kw	88.6%	3 years	£985	COMPARE
Alpha ProTec Plus 90 System Gas Boiler COMPARE	98kw	88.7%	3 years	£1144	COMPARE
Alpha ProTec Plus 115 System Gas Boiler COMPARE	121kw	88.5%	3 years	£1246	COMPARE
Alpha E-TEC 20S System Gas Boiler COMPARE	20kw	88.9%	5 years	£675	COMPARE
Alpha E-TEC 30s System Gas Boiler COMPARE	30kw	89%	5 years	£1095	COMPARE
Alpha E-TEC PLUS 28kW Combi Gas Boiler COMPARE	28kw	88.9%	7 years	£800	COMPARE
Alpha E-TEC PLUS 33kW Combi Gas Boiler COMPARE	33kw	89%	7 years	£0	COMPARE
Alpha E-Tec 15R 15kW Regular Gas Boiler COMPARE	15kw	93%	2 years	£0	COMPARE
Alpha E-Tec 20R 20kW Regular Gas Boiler COMPARE	20kw	93%	2 years	£0	COMPARE
Alpha E-Tec 25R 25kW Regular Gas Boiler COMPARE	25kw	93%	2 years	£0	COMPARE

Ariston

Boiler Model	kW	Efficiency	Warranty	Typical Price
Ariston GENUS HE 24 Combi Gas Boiler COMPARE	24kw	90.3%	1 year	£702	COMPARE
Ariston GENUS HE 24 System Gas Boiler COMPARE	24kw	90.3%	1 year	£571	COMPARE
Ariston CLAS HE evo 30 Combi Gas Boiler COMPARE	30kw	90%	5 years	£1100	COMPARE
Ariston CLAS HE evo 24 Combi Gas Boiler COMPARE	24kw	90.1%	5 years	£910	COMPARE
Ariston CLAS HE evo 38 Combi Gas Boiler COMPARE	38kw	90%	5 years	£750	COMPARE
Ariston E-COMBI evo 24 Combi Gas Boiler COMPARE	24kw	90%	2 years	£650	COMPARE
Ariston E-COMBI evo 30 Combi Gas Boiler COMPARE	30kw	90%	2 years	£705	COMPARE
Ariston E-COMBI evo 38 Combi Gas Boiler COMPARE	38kw	90.1%	2 years	£900	COMPARE
Ariston CLAS HE 24kW Regular Gas Boiler COMPARE	24kw	90.3%	5 years	£795	COMPARE
Ariston E-SYSTEM evo 24 System Gas Boiler COMPARE	24kw	90%	2 years	£670	COMPARE
Ariston E-SYSTEM evo 30 System Gas Boiler COMPARE	30kw	90.2%	2 years	£775	COMPARE
Ariston CLAS HE SYSTEM evo 18 System Gas Boiler COMPARE	18kw	90.1%	5 years	£700	COMPARE
Ariston CLAS HE SYSTEM evo 24 System Gas Boiler COMPARE	24kw	90%	5 years	£725	COMPARE
Ariston CLAS HE SYSTEM evo 30 System Gas Boiler COMPARE	30kw	90%	5 years	£760	COMPARE
Ariston Clas Net One 24kW Combi Gas Boiler COMPARE	24kw	90%	12 years	£875	COMPARE
Ariston Clas Net One 30kW Combi Gas Boiler COMPARE	30kw	90%	12 years	£900	COMPARE
Ariston Clas Net One 38kW Combi Gas Boiler COMPARE	38kw	90%	12 years	£1400	COMPARE
Ariston Clas One 24kW Combi Gas Boiler COMPARE	24kw	90%	8 years	£930	COMPARE
Ariston Clas One 30kW Combi Gas Boiler COMPARE	30kw	90%	8 years	£1012	COMPARE
Ariston Clas One 38kW Combi Gas Boiler COMPARE	38kw	90%	8 years	£1149	COMPARE
Ariston E-Combi One 24kW Gas Boiler COMPARE	24kw	90%	2 years	£650	COMPARE
Ariston E-Combi One 30kW Gas Boiler COMPARE	30kw	90%	2 years	£780	COMPARE
Ariston E-System One 24kW Gas Boiler COMPARE	24kw	90%	2 years	£739	COMPARE
Ariston E-System One 30kW Gas Boiler COMPARE	30kw	90%	2 years	£793	COMPARE
Ariston Clas System One 18kW Gas Boiler COMPARE	18kw	90%	8 years	£903	COMPARE
Ariston Clas System One 24kW Gas Boiler COMPARE	24kw	90%	8 years	£991	COMPARE
Ariston Clas System One 30kw Gas Boiler COMPARE	30kw	90%	8 years	£1122	COMPARE
Ariston ATLEAS ONE NET 30kW Combi Gas Boiler COMPARE	30kw	90.1%	12 years	£0	COMPARE
Ariston ATLEAS ONE NET 35kW Combi Gas Boiler COMPARE	35kw	90.1%	12 years	£0	COMPARE
Ariston GENUS ONE NET 24kW Combi Gas Boiler COMPARE	24kw	90.1%	12 years	£0	COMPARE
Ariston GENUS ONE NET 30kW Combi Gas Boiler COMPARE	30kw	90.4%	12 years	£0	COMPARE
Ariston GENUS ONE NET 35kW Combi Gas Boiler COMPARE	35kw	90.1%	12 years	£0	COMPARE

ATAG

Boiler Model	kW	Efficiency	Warranty	Typical Price
ATAG IC Economiser Plus 39kW Combi Gas Boiler COMPARE	39kw	89.7%	10 years	£2460	COMPARE
ATAG IC Economiser Plus 35kW Combi Gas Boiler COMPARE	35kw	89.7%	10 years	£2380	COMPARE
ATAG IC Economiser Plus 27kW Combi Gas Boiler COMPARE	27kw	89.7%	10 years	£2150	COMPARE
ATAG IS40 40kW System Gas Boiler COMPARE	40kw	89.8%	10 years	£0	COMPARE
ATAG IS32 32kW System Gas Boiler COMPARE	32kw	89.8%	10 years	£0	COMPARE
ATAG IS24 24kW System Gas Boiler COMPARE	24kw	89.8%	10 years	£0	COMPARE
ATAG IS18 18kW System Gas Boiler COMPARE	18kw	89.8%	10 years	£0	COMPARE
ATAG IS15 15kW System Gas Boiler COMPARE	15kw	89.8%	10 years	£0	COMPARE
ATAG IR40 40kW Regular Gas Boiler COMPARE	40kw	89.8%	10 years	£0	COMPARE
ATAG IR32 32kW Regular Gas Boiler COMPARE	32kw	89.8%	10 years	£1971	COMPARE
ATAG IR24 24kW Regular Gas Boiler COMPARE	24kw	89.8%	10 years	£1971	COMPARE
ATAG IR18 18kW Regular Gas Boiler COMPARE	18kw	89.8%	10 years	£0	COMPARE
ATAG IR15 15kW Regular Gas Boiler COMPARE	15kw	89.8%	10 years	£0	COMPARE
ATAG IC36 36kW Combi Gas Boiler COMPARE	36kw	89.7%	10 years	£0	COMPARE
ATAG IC28 28kW combi Gas Boiler COMPARE	28kw	89.7%	10 years	£0	COMPARE
ATAG IC24 24kW Combi Gas Boiler COMPARE	24kw	89.7%	10 years	£0	COMPARE
ATAG IC40 40kW Combi Gas Boiler COMPARE	40kw	89.7%	10 years	£0	COMPARE

Baxi

Boiler Model	kW	Efficiency	Warranty	Typical Price
Baxi Combi 105 HE 30kW Gas Boiler COMPARE	30kw	87.3%	2 years	£948	COMPARE
Baxi Solo 15 HE A Regular Gas Boiler COMPARE	15kw	89.2%	2 years	£878	COMPARE
Baxi Duo-tec Combi 28 LPG Gas Boiler COMPARE	28kw	88.6%	7 years	£870	COMPARE
Baxi Neta-Tec Combi 33 GA Gas Boiler COMPARE	33kw	89%	5 years	£1110	COMPARE
Baxi EcoBlue+ Combi 24 Gas Boiler COMPARE	24kw	89.1%	7 years	£910	COMPARE
Baxi EcoBlue+ Combi 28 Gas Boiler COMPARE	28kw	89.1%	7 years	£959	COMPARE
Baxi EcoBlue+ Combi 33 Gas Boiler COMPARE	33kw	89.1%	7 years	£995	COMPARE
Baxi EcoBlue Advance Combi 24 Gas Boiler COMPARE	24kw	89.1%	10 years	£962	COMPARE
Baxi EcoBlue Advance Combi 28 Gas Boiler COMPARE	28kw	89.1%	10 years	£1102	COMPARE
Baxi EcoBlue Advance Combi 33 Gas Boiler COMPARE	33kw	89.1%	10 years	£1200	COMPARE
Baxi EcoBlue Advance Combi 40 Gas Boiler COMPARE	40kw	89.1%	10 years	£1260	COMPARE
Baxi Platinum Combi 24 Gas Boiler COMPARE	24kw	89%	10 years	£890	COMPARE
Baxi Platinum Combi 28 Gas Boiler COMPARE	28kw	89%	10 years	£1025	COMPARE
Baxi Platinum Combi 33 Gas Boiler COMPARE	33kw	88.9%	10 years	£1100	COMPARE
Baxi Platinum Combi 40 Gas Boiler COMPARE	40kw	88.9%	10 years	£1385	COMPARE
Baxi Duo-tec Combi 24 Gas Boiler COMPARE	24kw	88.6%	7 years	£1135	COMPARE
Baxi Duo-tec Combi 28 Gas Boiler COMPARE	28kw	88.6%	7 years	£850	COMPARE
Baxi Duo-tec Combi 33 Gas Boiler COMPARE	33kw	88.5%	7 years	£925	COMPARE
Baxi Duo-tec Combi 40 Gas Boiler COMPARE	40kw	88.5%	7 years	£1105	COMPARE
Baxi EcoBlue Heat 12 Regular Gas Boiler COMPARE	12kw	89.2%	2 years	£795	COMPARE
Baxi EcoBlue Heat 15 Regular Gas Boiler COMPARE	15kw	89.2%	2 years	£895	COMPARE
Baxi EcoBlue Heat 18 Regular Gas Boiler COMPARE	18kw	89.2%	2 years	£913	COMPARE
Baxi EcoBlue Heat 21 Regular Gas Boiler COMPARE	21kw	89.2%	2 years	£925	COMPARE
Baxi EcoBlue Heat 24 Regular Gas Boiler COMPARE	24kw	89.1%	2 years	£950	COMPARE
Baxi EcoBlue Advance Heat 13 Regular Gas Boiler COMPARE	13kw	89.2%	7 years	£795	COMPARE
Baxi EcoBlue Advance Heat 16 Regular Gas Boiler COMPARE	16kw	89.2%	7 years	£925	COMPARE
Baxi EcoBlue Advance Heat 19 Regular Gas Boiler COMPARE	19kw	89.2%	7 years	£995	COMPARE
Baxi EcoBlue Advance Heat 25 Regular Gas Boiler COMPARE	25kw	89.1%	7 years	£1055	COMPARE
Baxi EcoBlue Advance Heat 30 Regular Gas Boiler COMPARE	30kw	89.1%	7 years	£1095	COMPARE
Baxi EcoBlue System 12 Gas Boiler COMPARE	12kw	89.1%	7 years	£880	COMPARE
Baxi EcoBlue System 15 Gas Boiler COMPARE	15kw	89.1%	7 years	£925	COMPARE
Baxi EcoBlue System 18 Gas Boiler COMPARE	18kw	89.1%	7 years	£960	COMPARE
Baxi EcoBlue System 24 Gas Boiler COMPARE	24kw	89.1%	7 years	£976	COMPARE
Baxi EcoBlue System 28 Gas Boiler COMPARE	28kw	89.1%	7 years	£1112	COMPARE
Baxi EcoBlue System 32 Gas Boiler COMPARE	32kw	89.1%	7 years	£1127	COMPARE
Baxi Megaflo System 15 Gas Boiler COMPARE	15kw	88.6%	7 years	£765	COMPARE
Baxi Megaflo System 18 Gas Boiler COMPARE	18kw	88.6%	7 years	£740	COMPARE
Baxi Megaflo System 24 Gas Boiler COMPARE	24kw	88.6%	7 years	£895	COMPARE
Baxi Megaflo System 28 Gas Boiler COMPARE	28kw	88.5%	7 years	£945	COMPARE
Baxi Megaflo System 32 Gas Boiler COMPARE	32kw	88.5%	7 years	£975	COMPARE
Baxi 124 Combi Gas Boiler COMPARE	24kw	89.1%	2 years	£785	COMPARE
Baxi 128 Combi Gas Boiler COMPARE	28kw	89.1%	2 years	£835	COMPARE
Baxi 224 Combi Gas Boiler COMPARE	24kw	89%	3 years	£635	COMPARE
Baxi 228 Combi Gas Boiler COMPARE	28kw	89%	3 years	£631	COMPARE
Baxi 424 Combi Gas Boiler COMPARE	24kw	89%	5 years	£625	COMPARE
Baxi 428 Combi Gas Boiler COMPARE	28kw	89%	5 years	£655	COMPARE
Baxi 412 Heat 12kW Regular Gas Boiler COMPARE	12kw	89.2%	5 years	£695	COMPARE
Baxi 415 Heat 15kW Regular Gas Boiler COMPARE	15kw	89.2%	5 years	£695	COMPARE
Baxi 418 Heat 18kW Regular Gas Boiler COMPARE	18kw	89.2%	5 years	£805	COMPARE
Baxi 424 Heat 24kW Regular Gas Boiler COMPARE	24kw	89.1%	5 years	£662	COMPARE
Baxi 430 Heat 30kW Regular Gas Boiler COMPARE	30kw	89.1%	5 years	£925	COMPARE
Baxi 212 Heat 12kW Regular Gas Boiler COMPARE	12kw	89.2%	3 years	£695	COMPARE
Baxi 215 Heat 15kW Regular Gas Boiler COMPARE	15kw	89.2%	3 years	£883	COMPARE
Baxi 218 Heat 18kW Regular Gas Boiler COMPARE	18kw	89.2%	3 years	£765	COMPARE
Baxi 224 Heat 24kW Regular Gas Boiler COMPARE	24kw	89.2%	3 years	£815	COMPARE
Baxi 230 Heat 30kW Regular Gas Boiler COMPARE	30kw	89.1%	3 years	£850	COMPARE
Baxi 624 Combi Gas Boiler COMPARE	24kw	89%	7 years	£735	COMPARE
Baxi 630 Combi Gas Boiler COMPARE	30kw	89%	7 years	£820	COMPARE
Baxi 636 Combi Gas Boiler COMPARE	36kw	89%	7 years	£995	COMPARE

Biasi

Boiler Model	kW	Efficiency	Warranty	Typical Price
Biasi Advance Plus Combi ErP 25kW Gas Boiler COMPARE	25kw	88.7%	5 years	£595	COMPARE
Biasi Inovia ErP 25kW Combi Gas Boiler COMPARE	25kw	88.7%	5 years	£615	COMPARE
Biasi Inovia Combi ErP 30kW Gas Boiler COMPARE	30kw	88.6%	5 years	£625	COMPARE
Biasi Inovia Combi ErP 35kW Gas Boiler COMPARE	35kw	88.6%	5 years	£695	COMPARE
Biasi Advance Plus ErP 30kW Combi Gas Boiler COMPARE	30kw	88.6%	5 years	£625	COMPARE
Biasi Advance Plus ErP 35kW Combi Gas Boiler COMPARE	35kw	88.6%	5 years	£650	COMPARE
Biasi Riva Plus ErP 24kW Combi Gas Boiler COMPARE	24kw	88%	2 years	£525	COMPARE
Biasi Riva Plus ErP 28kW Combi Gas Boiler COMPARE	28kw	88%	2 years	£525	COMPARE
Biasi Inovia System ErP 25kW Gas Boiler COMPARE	25kw	88.8%	5 years	£615	COMPARE
Biasi Advance Plus ErP 16kW System Gas Boiler COMPARE	16kw	88.7%	5 years	£570	COMPARE
Biasi Advance Plus ErP 25kW System Gas Boiler COMPARE	25kw	88.8%	5 years	£593	COMPARE
Biasi Advance Plus ErP 30kW System Gas Boiler COMPARE	30kw	88.7%	5 years	£615	COMPARE
Biasi Riva Plus ErP 28kW System Gas Boiler COMPARE	28kw	88.1%	2 years	£525	COMPARE
Biasi Riva Plus ErP 24kW System Gas Boiler COMPARE	24kw	88%	5 years	£530	COMPARE
Biasi Advance 25kW Combi Gas Boiler COMPARE	25kw	88.7%	5 years	£0	COMPARE
Biasi Advance 30kW Combi Gas Boiler COMPARE	30kw	89%	5 years	£0	COMPARE
Biasi Advance 35kW Combi Gas Boiler COMPARE	35kw	89%	5 years	£0	COMPARE
Biasi Advance 25kW System Gas Boiler COMPARE	25kw	89%	5 years	£0	COMPARE
Biasi Advance 30kW System Gas Boiler COMPARE	30kw	89%	5 years	£0	COMPARE
Biasi Advance Plus 7 30kW Combi Gas Boiler COMPARE	30kw	92%	7 years	£0	COMPARE
Biasi Advance Plus 7 25kW System Gas Boiler COMPARE	25kw	92%	7 years	£0	COMPARE
Biasi Advance Plus 7 30kW System Gas Boiler COMPARE	30kw	92%	7 years	£0	COMPARE
Biasi Advance Plus 7 35kW System Gas Boiler COMPARE	35kw	92%	7 years	£0	COMPARE
Biasi Advance OV 15kW Regular Gas Boiler COMPARE	15kw	92%	5 years	£0	COMPARE
Biasi Advance OV 18kW Regular Gas Boiler COMPARE	18kw	92%	5 years	£0	COMPARE
Biasi Advance OV 24kW Regular Gas Boiler COMPARE	24kw	92%	5 years	£0	COMPARE
Biasi Advance Plus 7 25kW Combi Gas Boiler COMPARE	25kw	92%	7 years	£0	COMPARE
Biasi Advance Plus 7 35kW Combi Gas Boiler COMPARE	35kw	92%	7 years	£0	COMPARE

Daikin

Boiler Model	kW	Efficiency	Warranty	Typical Price
Daikin D2CND 24kW Combi Gas Boiler COMPARE	24kw	93%	2 years	£0	COMPARE
Daikin D2CND 28kW Combi Gas Boiler COMPARE	28kw	93.1%	2 years	£0	COMPARE
Daikin D2CND 35kW Combi Gas Boiler COMPARE	35kw	93%	2 years	£0	COMPARE

Ferroli

Boiler Model	kW	Efficiency	Warranty	Typical Price
Ferroli maXima 35 S Combi Gas Boiler COMPARE	35kw	91%	1 year	£753	COMPARE
Ferroli maXima 35 C Combi Gas Boiler COMPARE	35kw	90.9	1 year	£645	COMPARE
Ferroli Optimax HE 38 C Combi Gas Boiler COMPARE	30kw	90.5%	5 years	£699	COMPARE
Ferroli Optimax HE 31 C Combi Gas Boiler COMPARE	25kw	90.4	5 years	£652	COMPARE
Ferroli Domicompact F 30 B Combi Gas Boiler COMPARE	30kw	87.7%	1 year	£650	COMPARE
Ferroli Optimax HE PLUS 18 s System Gas Boiler COMPARE	18kw	92.5%	5 years	£539	COMPARE
Ferroli Optimax HE PLUS 25s System Gas Boiler COMPARE	25kw	90.5%	5 years	£539	COMPARE
Ferroli Optimax HE 31 S System Gas Boiler COMPARE	30kw	90.6%	5 years	£589	COMPARE
Ferroli Optimax HE 18 OV Regular Gas Boiler COMPARE	18kw	92.5%	5 years	£617	COMPARE
Ferroli Optimax 25 OV Regular Gas Boiler COMPARE	25kw	90.4%	5 years	£559	COMPARE
Ferroli Modena 32c HE Combi Gas Boiler COMPARE	32kw	90.3%	5 years	£665	COMPARE
Ferroli Modena 27c HE Combi Gas Boiler COMPARE	27kw	90.3%	5 years	£645	COMPARE
Ferroli Modena 38c HE Combi Gas Boiler COMPARE	38kw	90.3%	5 years	£845	COMPARE
Ferroli Modena 18s HE System Gas Boiler COMPARE	18kw	90.2%	5 years	£635	COMPARE
Ferroli Modena 25s HE System Gas Boiler COMPARE	25kw	90.4%	5 years	£635	COMPARE
Ferroli Modena 32s HE System Gas Boiler COMPARE	32kw	90.4%	5 years	£655	COMPARE
Ferroli i25 Combi Gas Boiler COMPARE	24kw	96.5%	2 years	£435	COMPARE
Ferroli i29 Combi Gas Boiler COMPARE	27kw	96.5%	2 years	£500	COMPARE
Ferroli iBoiler 29kW Combi Gas Boiler COMPARE	29kw	86%	2 years	£0	COMPARE
Ferroli iBoiler 25kW Combi Gas Boiler COMPARE	25kw	85%	2 years	£0	COMPARE
Ferroli BLUEHELIX 24kW Combi Gas Boiler COMPARE	24kw	94%	10 years	£0	COMPARE
Ferroli BLUEHELIX 28kW Combi Gas Boiler COMPARE	28kw	94%	10 years	£0	COMPARE
Ferroli BLUEHELIX 34kW Combi Gas Boiler COMPARE	34kw	94%	10 years	£0	COMPARE
Ferroli BLUEHELIX 18kW System Gas Boiler COMPARE	18kw	94%	10 years	£0	COMPARE
Ferroli BLUEHELIX 24kW System Gas Boiler COMPARE	30kw	94%	10 years	£0	COMPARE
Ferroli BLUEHELIX 30kW System Gas Boiler COMPARE	30kw	94%	10 years	£0	COMPARE

Glow-worm

Boiler Model	kW	Efficiency	Warranty	Typical Price
Glow-worm Xtramax HE 28kW Combi Gas Boiler COMPARE	28kw	89.2%	3 years	£550	COMPARE
Glow-worm Betacom 30c Combi Gas Boiler COMPARE	30kw	85.7%	2 years	£644	COMPARE
Glow-worm Ultrapower 100 SXI 24kW Combi Gas Boiler COMPARE	24kw	89.2%	2 years	£1700	COMPARE
Glow-worm Ultracom 24 hxi Regular Gas Boiler COMPARE	24kw	88.5%	5 years	£720	COMPARE
Glow-worm Ultracom2 35 store 35kW Combi Gas Boiler COMPARE	35kw	89.4%	2 years	£1400	COMPARE
Glow-worm Flexicom hx 24kW Regular Gas Boiler COMPARE	24kw,	88.4%	5 years	£675	COMPARE
Glow-worm Ultracom2 cxi 30kW Combi Gas Boiler COMPARE	30kw	89.3%	2 years	£900730	COMPARE
Glow-worm Flexicom cx 24kW Combi Gas Boiler COMPARE	24kw	88.4%	2 years	£830	COMPARE
Glow-worm Betacom2 24kW Combi Gas Boiler COMPARE	24kw	89%	2 years	£590	COMPARE
Glow-worm Energy Combi 25kW Gas Boiler COMPARE	25kw	89.2%	7 years	£775	COMPARE
Glow-worm Energy Combi 30kW Gas Boiler COMPARE	30kw	89.2%	7 years	£795	COMPARE
Glow-worm Energy Combi 35kW Gas Boiler COMPARE	35kw	89.2%	7 years	£915	COMPARE
Glow-worm Betacom3 24kW Combi Gas Boiler COMPARE	24kw	89.2%	2 years	£560	COMPARE
Glow-worm Betacom3 30kW Combi Gas Boiler COMPARE	30kw	89.2%	2 years	£610	COMPARE
Glow-worm Easicom 24c Combi Gas Boiler COMPARE	24kw	89.3%	4 years	£614	COMPARE
Glow-worm Easicom 28c Combi Gas Boiler COMPARE	28kw	89.3%	4 years	£665	COMPARE
Glow-worm Procombi Essential 24kW Combi Gas Boiler COMPARE	24kw	89.2%	2 years	£660	COMPARE
Glow-worm Procombi Essential 28kW Combi Gas Boiler COMPARE	28kw	89.2%	2 years	£700	COMPARE
Glow-worm Procombi Essential 35kW Combi Gas Boiler COMPARE	35kw	89.7%	2 years	£841	COMPARE
Glow-worm Ultimate2 Combi 30kW Gas Boiler COMPARE	30kw	89.2%	2 years	£720	COMPARE
Glow-worm Ultimate2 Combi 35kW Gas Boiler COMPARE	35kw	89.2%	2 years	£863	COMPARE
Glow-worm Easicom 25r Regular Gas Boiler COMPARE	25kw	89.7%	4 years	£685	COMPARE
Glow-worm Ultimate2 Regular 25kW Regular Gas Boiler COMPARE	25kw	89.3%	5 years	£870	COMPARE
Glow-worm Energy Regular 12kW Gas Boiler COMPARE	12kw	89.3%	7 years	£713	COMPARE
Glow-worm Energy Regular 15kW Gas Boiler COMPARE	15kw	89.3%	7 years	£780	COMPARE
Glow-worm Energy Regular 18kW Gas Boiler COMPARE	18kw	89.3%	7 years	£760	COMPARE
Glow-worm Energy Regular 25kW Gas Boiler COMPARE	25kw	89.2%	7 years	£790	COMPARE
Glow-worm Ultracom 24 hxi Regular Gas Boiler COMPARE	30kw	88.4%	5 years	£730	COMPARE
Glow-worm Ultimate2 25kW System Gas Boiler COMPARE	25kw	89.3%	5 years	£820	COMPARE
Glow-worm Easicom 25s System Gas Boiler COMPARE	25kw	89.3%	4 years	£860	COMPARE
Glow-worm Energy System 12kW Gas Boiler COMPARE	12kw	89.3%	7 years	£700	COMPARE
Glow-worm Energy System 15kW Gas Boiler COMPARE	15kw	89.3%	7 years	£725	COMPARE
Glow-worm Energy System 18kW Gas Boiler COMPARE	18kw	89.3%	7 years	£765	COMPARE
Glow-worm Energy System 25kW Gas Boiler COMPARE	25kw	89.3%	7 years	£785	COMPARE
Glow-worm Energy System 30kW Gas Boiler COMPARE	30kw	89.3%	7 years	£850	COMPARE
Glow-worm Energy 35 Store 35kW Combi Gas Boiler COMPARE	35kw	89.4%	7 years	£1580	COMPARE
Glow-worm Essential 24kW Combi Gas Boiler COMPARE	24kw	89.3%	3 years	£1853	COMPARE
Glow-worm Essential 28kW Combi Gas Boiler COMPARE	28kw	89.3%	3 years	£1234	COMPARE
Glow-worm Ultimate3 25kW System Gas Boiler COMPARE	25kw	89.7%	5 years	£725	COMPARE
Glow-worm Easicom3 25s System Gas Boiler COMPARE	25kw	89.7%	4 years	£595	COMPARE
Glow-worm Ultimate3 25kW Regular Gas Boiler COMPARE	25kw	89.6%	5 years	£725	COMPARE
Glow-worm Easicom3 25kW Regular Gas Boiler COMPARE	25kw	89.6%	5 years	£0	COMPARE
Glow-worm Ultimate3 30kw Combi Gas Boiler COMPARE	30kw	89.6%	10 years	£705	COMPARE
Glow-worm Ultimate3 35kw Combi Gas Boiler COMPARE	35kw	89.7%	10 years	£775	COMPARE
Glow-worm Easicom3 24kW Combi Gas Boiler COMPARE	24kw	89.6%	6 years	£625	COMPARE
Glow-worm Easicom3 28kW Combi Gas Boiler COMPARE	28kw	89.6%	6 years	£0	COMPARE
Glow-worm betacom4 24kW Combi gas boiler COMPARE	24kw	89.2%	5 years	£525	COMPARE
Glow-worm betacom4 30kW Combi gas boiler COMPARE	30kw	89.2%	5 years	£565	COMPARE

Ideal

Boiler Model	kW	Efficiency	Warranty	Typical Price
Ideal Vogue 40kW Combi Gas Boiler COMPARE	26kw	89.10%	7 years	£1210	COMPARE
Ideal Logic Code Combi ES 26kW Gas Boiler COMPARE	26kw	89.00%	2 years	£1110	COMPARE
Ideal Logic System 15kW Gas Boiler COMPARE	15kw	89.30%	7 years	£700	COMPARE
Ideal Logic Heat 12kW Regular Gas Boiler COMPARE	12kw	89.40%	7 years	£770	COMPARE
Ideal Mexico HE 24kW Regular Gas Boiler COMPARE	24kw	88.8%	2 year	£1400	COMPARE
Ideal Logic Combi 24kW Gas Boiler COMPARE	24kw	94%	2 years	£775	COMPARE
Ideal Logic Combi 30kW Gas Boiler COMPARE	30kw	94%	2 years	£950	COMPARE
Ideal Logic Combi 35kW Gas Boiler COMPARE	35kw	94%	2 years	£955	COMPARE
Ideal Logic Combi ESP1 24kW Gas Boiler COMPARE	24kw	94%	2 years	£770	COMPARE
Ideal Logic Combi ESP1 30kW Gas Boiler COMPARE	30kw	94%	2 years	£714	COMPARE
Ideal Logic Combi ESP1 35kW Gas Boiler COMPARE	35kw	94%	2 years	£765	COMPARE
Ideal Logic Plus Combi 30kW Gas Boiler COMPARE	30kw	94%	7 years	£845	COMPARE
Ideal Logic Plus Combi 35kW Gas Boiler COMPARE	35kw	94%	7 years	£995	COMPARE
Ideal Logic Plus Combi 24kW Gas Boiler COMPARE	24kw	94%	7 years	£740	COMPARE
Ideal Logic Plus Heat 12kW Regular Gas Boiler COMPARE	12kw	89.4%	7 years	£775	COMPARE
Ideal Logic Plus Heat 15kW Regular Gas Boiler COMPARE	15kw	89.4%	7 years	£775	COMPARE
Ideal Logic Plus Heat 18kW Regular Gas Boiler COMPARE	18kw	89.6%	7 years	£835	COMPARE
Ideal Logic Plus Heat 24kW Regular Gas Boiler COMPARE	24kw	89.8%	7 years	£785	COMPARE
Ideal Logic Plus Heat 30kW Regular Gas Boiler COMPARE	30kw	89.5%	7 years	£925	COMPARE
Ideal Logic Plus System 15kW Gas Boiler COMPARE	15kw	89.4%	7 years	£815	COMPARE
Ideal Logic Plus System 18kW Gas Boiler COMPARE	18kw	89.4%	7 years	£895	COMPARE
Ideal Logic Plus System 24kW Gas Boiler COMPARE	24kw	89.8%	7 years	£920	COMPARE
Ideal Logic Plus System 30kW Gas Boiler COMPARE	30kw	89.5%	7 years	£905	COMPARE
Ideal Vogue 15kW System Gas Boiler COMPARE	15kw	92%	10 years	£840	COMPARE
Ideal Vogue 18kW System Gas Boiler COMPARE	18kw	93%	10 years	£930	COMPARE
Ideal Vogue 26kW System Gas Boiler COMPARE	26kw	93%	10 years	£910	COMPARE
Ideal Vogue 32kW System Gas Boiler COMPARE	32kw	93%	10 years	£1004	COMPARE
Ideal Logic Code Combi ES 33kW Gas Boiler COMPARE	33kw	91%	10 years	£1480	COMPARE
Ideal Logic Code Combi ES 38kW Gas Boiler COMPARE	38kw	91%	10 years	£1500	COMPARE
Ideal Logic System 18kW Gas Boiler COMPARE	18kw	97.8%	2 years	£890	COMPARE
Ideal Logic System 24kW Gas Boiler COMPARE	24kw	98.5%	2 years	£960	COMPARE
Ideal Logic System 30kW Gas Boiler COMPARE	30kw	98.3%	2 years	£980	COMPARE
Ideal Logic Heat 15kW Regular Gas Boiler COMPARE	15kw	90%	2 years	£700	COMPARE
Ideal Logic Heat 18kW Regular Gas Boiler COMPARE	18kw	98.5%	5 years	£791	COMPARE
Ideal Logic Heat 24kW Regular Gas Boiler COMPARE	24kw	90%	2 years	£850	COMPARE
Ideal Logic Heat 30kW Regular Gas Boiler COMPARE	30kw	89.3%	2 years	£950	COMPARE
Ideal Mexico HE 15kW Regular Gas Boiler COMPARE	15kw	89.7%	2 years	£1030	COMPARE
Ideal Mexico HE 18kW Regular Gas Boiler COMPARE	18kw	89.7%	2 years	£1120	COMPARE
Ideal Mexico HE 30kW Regular Gas Boiler COMPARE	30kw	88.9%	2 years	£1925	COMPARE
Ideal Mexico HE 36kW Regular Gas Boiler COMPARE	36kw	89%	2 years	£2200	COMPARE
Ideal EvoMax 30kW Regular Gas Boiler COMPARE	30kw	96.7%	2 years	£2300	COMPARE
Ideal EvoMax 40kW Regular Gas Boiler COMPARE	40kw	96.2%	2 years	£2600	COMPARE
Ideal EvoMax 60kW Regular Gas Boiler COMPARE	60kw	96.9%	2 years	£2700	COMPARE
Ideal EvoMax 80kW Regular Gas Boiler COMPARE	80kw	97.2%	2 years	£3100	COMPARE
Ideal EvoMax 100kW Regular Gas Boiler COMPARE	100kw	96.7%	2 years	£3800	COMPARE
Ideal EvoMax 120kW Regular Gas Boiler COMPARE	120kw	96.6%	2 years	£4100	COMPARE
Ideal EvoMax 150kW Regular Gas Boiler COMPARE	150kw	96.7%	2 years	£4500	COMPARE
Ideal Vogue GEN2 C26 Combi Gas Boiler COMPARE	26kw	89.2%	10 years	£995	COMPARE
Ideal Vogue GEN2 C32 Combi Gas Boiler COMPARE	32kw	89.3%	10 years	£1100	COMPARE
Ideal Vogue GEN2 C40 Combi Gas Boiler COMPARE	40kw	89.2%	10 years	£1180	COMPARE
Ideal Vogue GEN2 S15 System Gas Boiler COMPARE	15kw	88.9%	10 years	£820	COMPARE
Ideal The Vogue GEN2 S18 System Gas Boiler COMPARE	18kw	89.4%	10 years	£970	COMPARE
Ideal The Vogue GEN2 S26 System Gas Boiler COMPARE	26kw	89.4%	10 years	£1085	COMPARE
Ideal Vogue GEN2 S32 System Gas Boiler COMPARE	32kw	89.4%	10 years	£1145	COMPARE
Ideal Vogue Max 26kW Combi Gas Boiler COMPARE	26kw	93%	10 years	£1015	COMPARE
Ideal Vogue Max 32kW Combi Gas Boiler COMPARE	32kw	93%	10 years	£1125	COMPARE
Ideal Vogue Max 40kW Combi Gas Boiler COMPARE	40kw	93%	10 years	£1248	COMPARE
Ideal Vogue Max 15kW System Gas Boiler COMPARE	15kw	92%	10 years	£995	COMPARE
Ideal Vogue Max 18kW System Gas Boiler COMPARE	18kw	93%	10 years	£1091	COMPARE
Ideal Vogue Max 26kW System Gas Boiler COMPARE	26kw	93%	10 years	£1037	COMPARE
Ideal Vogue Max 32kW System Gas Boiler COMPARE	32kw	93%	10 years	£1135	COMPARE
Ideal Logic Max 24kW Combi Gas Boiler COMPARE	24kw	94%	10 years	£894	COMPARE
Ideal Logic Max 30kW Combi Gas Boiler COMPARE	30kw	94%	10 years	£980	COMPARE
Ideal Logic Max 35kW Combi Gas Boiler COMPARE	35kw	94%	10 years	£1077	COMPARE
Ideal Logic Max 15kW System Gas Boiler COMPARE	15kw	93%	10 years	£959	COMPARE
Ideal Logic Max 18kW System Gas Boiler COMPARE	18kw	93%	10 years	£960	COMPARE
Ideal Logic Max 24kW System Gas Boiler COMPARE	24kw	94%	10 years	£915	COMPARE
Ideal Logic Max 30kW System Gas Boiler COMPARE	30kw	93%	10 years	£952	COMPARE
Ideal Logic Max Heat 12Kw Regular Gas Boiler COMPARE	12kw	93%	10 years	£839	COMPARE
Ideal Logic Max Heat 15kW Regular Gas Boiler COMPARE	15kw	93%	10 years	£876	COMPARE
Ideal Logic Max Heat 18kW Regular Gas Boiler COMPARE	18kw	93%	10 years	£911	COMPARE
Ideal Logic Max Heat 24kW Regular Gas Boiler COMPARE	24kw	94%	10 years	£946	COMPARE
Ideal Logic Max Heat 30kW Regular Gas Boiler COMPARE	30kw	93%	10 years	£1059	COMPARE

Intergas

Boiler Model	kW	Efficiency	Warranty	Typical Price
Intergas Compact HRE OV 18kW Regular Gas Boiler COMPARE	18kw	88.8%	7 years	£725	COMPARE
Intergas Combi Compact HRE 28/24 Gas Boiler COMPARE	23kw	88.8%	7 years	£885	COMPARE
Intergas Combi Compact HRE 36/30kW Gas Boiler COMPARE	27kw	89.1%	7 years	£995	COMPARE
Intergas Combi Compact HRE 36/40 Gas Boiler COMPARE	41kw	88.8%	7 years	£1020	COMPARE
Intergas Rapid 25kW Combi Gas Boiler COMPARE	25kw	89%	3 years	£625	COMPARE
Intergas Rapid 32kW Combi Gas Boiler COMPARE	32kw	88.9%	3 years	£665	COMPARE
Intergas Combi Compact ECO RF 24kW Gas Boiler COMPARE	24kw	88.8%	10 years	£1100	COMPARE
Intergas Combi Compact ECO RF 30 Gas Boiler COMPARE	23kw	88.8%	10 years	£1155	COMPARE
Intergas Combi Compact ECO RF 36kW Gas Boiler COMPARE	27kw	89.1%	10 years	£990	COMPARE
Intergas Compact HRE SB 18Kw System Gas Boiler COMPARE	18kw	88.9%	7 years	£785	COMPARE
Intergas Compact HRE SB 24 System Gas Boiler COMPARE	23kw	88.9%	7 years	£875	COMPARE
Intergas Compact HRE SB 30 System Gas Boiler COMPARE	27kw	89.2%	7 years	£955	COMPARE
Intergas Compact HRE SB 40 System Gas Boiler COMPARE	41kw	89.2%	7 years	£1135	COMPARE
Intergas Compact HRE OV 24 Regular Gas Boiler COMPARE	23kw	88.9%	7 years	£835	COMPARE
Intergas Compact HRE OV 30 Regular Gas Boiler COMPARE	27kw	88.9%	7 years	£945	COMPARE
Intergas Combi Compact HRE 24/18 Gas Boiler COMPARE	17kw	88.8%	7 years	£775	COMPARE
Intergas Rapid 25kW Plus Combi Gas Boiler COMPARE	25kw	93%	6 years	£590	COMPARE
Intergas Rapid 32kW Plus Combi Gas Boiler COMPARE	32kw	93%	6 years	£645	COMPARE
Intergas Xtreme 24kW Combi Gas Boiler COMPARE	24kw	93%	5 years	£0	COMPARE
Intergas Xtreme 30kW Combi Gas Boiler COMPARE	30kw	93%	5 years	£0	COMPARE
Intergas Xtreme 36kW Combi Gas Boiler COMPARE	36kw	93%	5 years	£0	COMPARE
Intergas Xclusive 24kW Combi Gas Boiler COMPARE	24kw	87%	10 years	£0	COMPARE
Intergas Xclusive 30kW Combi Gas Boiler COMPARE	30kw	89%	10 years	£0	COMPARE
Intergas Xclusive 36kW Combi Gas Boiler COMPARE	36kw	89%	10 years	£0	COMPARE

Johnson and Starley

Boiler Model	kW	Efficiency	Warranty	Typical Price
Johnson and Starley QuanTec HR 28c Combi 28kW Gas Boiler COMPARE	28kw	89.3%	8 years	£0	COMPARE
Johnson and Starley QuanTec 24c Combi 24kW Gas Boiler COMPARE	24kw	89.6%	8 years	£0	COMPARE
Johnson and Starley QuanTec 30c Combi 28kW Gas Boiler COMPARE	30kw	89.5%	8 years	£0	COMPARE
Johnson and Starley Quantec 24r Regular 24kW Gas Boiler COMPARE	24kw	89.6%	8 years	£0	COMPARE
Johnson and Starley QuanTec 24s System 24kW Oil Boiler COMPARE	24kw	89.6%	8 years	£0	COMPARE
Johnson and Starley Quantec 16kW Regular Gas Boiler COMPARE	16kw	88.8%	8 years	£0	COMPARE

Keston

Boiler Model	kW	Efficiency	Warranty	Typical Price
Keston S30 30kW System Gas Boiler COMPARE	30kw	89.5%	7 years	£1100	COMPARE
Keston C30 30kW Combi Gas Boiler COMPARE	30kw	89.6%	7 years	£1140	COMPARE
Keston C35 35kW Combi Gas Boiler COMPARE	35kw	89.6%	7 years	£1180	COMPARE
Keston Heat 45kW Regular Gas Boiler COMPARE	45kw	89.2%	7 years	£2225	COMPARE
Keston Heat 55kW Regular Gas Boiler COMPARE	55kw	89.6%	7 years	£2610	COMPARE

Main

Boiler Model	kW	Efficiency	Warranty	Typical Price
Main Combi Eco Elite 25kW Gas Boiler COMPARE	25kw	89%	5 years	£590	COMPARE
Main Combi Eco Elite 30kW Gas Boiler COMPARE	30kw	88.7%	5 years	£670	COMPARE
Main System Eco Elite 24kW Gas Boiler COMPARE	24kw	89.1%	3 years	£618	COMPARE
Main System Eco Elite 28kW Gas Boiler COMPARE	28kw	88.8%	3 years	£635	COMPARE
Main HE A 12kW Regular Gas Boiler COMPARE	12kw	88.7%	3 years	£500	COMPARE
Main HE A 15kW Regular Gas Boiler COMPARE	15kw	89%	3 years	£520	COMPARE
Main HE A 18kW Regular Gas Boiler COMPARE	18kw	88.7%	3 years	£540	COMPARE
Main HE A 24kW Regular Gas Boiler COMPARE	24kw	88.9%	3 years	£600	COMPARE
Main Eco Compact 25kW Combi Gas Boiler COMPARE	25kw	93%	5 years	£620	COMPARE
Main Eco Compact 30kW Combi Gas Boiler COMPARE	30kw	93%	5 years	£710	COMPARE
Main Eco Compact 15kW System Gas Boiler COMPARE	15kw	93%	5 years	£610	COMPARE
Main Eco Compact 18kW System Gas Boiler COMPARE	18kw	93%	5 years	£675	COMPARE

Navien

Boiler Model	kW	Efficiency	Warranty	Typical Price
Navien NCB 24kW Combi Gas Boiler COMPARE	24kw	92%	7 years	£0	COMPARE
Navien NCB 28kW Combi Gas Boiler COMPARE	28kw	93%	7 years	£0	COMPARE
Navien NCB 34kW Combi Gas Boiler COMPARE	34kw	93%	7 years	£0	COMPARE
Navien NCB 40kW Combi Gas Boiler COMPARE	40kw	93%	7 years	£0	COMPARE
Navien NCB 20kW System Gas Boiler COMPARE	20kw	92%	7 years	£0	COMPARE
Navien NCB 23kW System Gas Boiler COMPARE	23kw	93%	7 years	£0	COMPARE
Navien NCB 28kW System Gas Boiler COMPARE	28kw	93%	7 years	£0	COMPARE
Navien NCB 33kW System Gas Boiler COMPARE	33kw	93%	7 years	£0	COMPARE

Potterton

Boiler Model	kW	Efficiency	Warranty	Typical Price
Potterton Titanium 24kW Combi Gas Boiler COMPARE	24kw	91.10%	7 years	£795	COMPARE
Potterton Promax HE Plus 15 kW Regular Gas Boiler COMPARE	15kw	89.40%	1 year	£775	COMPARE
Potterton Promax SL Heat 12kW Regular Gas Boiler COMPARE	12kw	91.10%	1 year	£675	COMPARE
Potterton Gold Combi 24kW Gas Boiler COMPARE	24kw	91.1%	2 years	£625	COMPARE
Potterton Heatmax Combi HE 24kW Gas Boiler COMPARE	24kw	91.10%	2 years	£580	COMPARE
Potterton Promax System HE Plus A 12kW Gas Boiler COMPARE	12kw	91.10%	2 years	£930	COMPARE
Potterton Performa Combi HE 30kW Combi Gas Boiler COMPARE	30kw	86.40%	1 year	£810	COMPARE
Potterton Promax SL Heat 24kW Regular Gas Boiler COMPARE	24kw	88.80%	1 year	£925	COMPARE
Potterton Promax 24kW Combi Gas Boiler COMPARE	24kw	89%	2 years	£1065	COMPARE
Potterton Promax 28kW Combi Gas Boiler COMPARE	28kw	89%	2 years	£910	COMPARE
Potterton Promax 33kW Combi Gas Boiler COMPARE	33kw	89%	2 years	£1100	COMPARE
Potterton Promax Ultra 24kW Combi Gas Boiler COMPARE	24kw	89.1%	2 years	£1100	COMPARE
Potterton Promax Ultra 28kW Combi Gas Boiler COMPARE	28kw	89.1%	2 years	£950	COMPARE
Potterton Promax Ultra 33kW Combi Gas Boiler COMPARE	33kw	89.1%	2 years	£1490	COMPARE
Potterton Promax Ultra 40kW Combi Gas Boiler COMPARE	40kw	89.1%	2 years	£1420	COMPARE
Potterton Promax System 12kW Gas Boiler COMPARE	12kw	89%	2 years	£845	COMPARE
Potterton Promax System 15kW Gas Boiler COMPARE	15kw	89%	2 years	£935	COMPARE
Potterton Promax System 18kW Gas Boiler COMPARE	18kw	89%	2 years	£830	COMPARE
Potterton Promax System 24kW Gas Boiler COMPARE	24kw	89%	2 years	£875	COMPARE
Potterton Promax System 32kW Gas Boiler COMPARE	32kw	89%	2 years	£965	COMPARE
Potterton Titanium 28kW Combi Gas Boiler COMPARE	28kw	91.1%	7 years	£835	COMPARE
Potterton Titanium 33kW Combi Gas Boiler COMPARE	33kw	91.1%	7 years	£925	COMPARE
Potterton Titanium 40kW Combi Gas Boiler COMPARE	40kw	91.1%	7 years	£935	COMPARE
Potterton Promax HE Plus 24 kW Regular Gas Boiler COMPARE	24kw	89.4%	1 year	£871	COMPARE
Potterton Promax HE Plus 30 kW Regular Gas Boiler COMPARE	30kw	89.4%	1 year	£875	COMPARE
Potterton Gold Combi 28kW Gas Boiler COMPARE	28kw	89%	2 years	£705	COMPARE
Potterton Gold Combi 33kW Gas Boiler COMPARE	33kw	89%	2 years	£825	COMPARE
Potterton Heatmax Combi HE 28kW Gas Boiler COMPARE	28kw	91.1%	2 years	£694	COMPARE
Potterton Heatmax Combi HE 33kW Gas Boiler COMPARE	33kw	91.1%	2 years	£806	COMPARE
Potterton Promax System HE Plus A 15kW Gas Boiler COMPARE	15kw	91.1%	2 years	£825	COMPARE
Potterton Promax System HE Plus A 18kW Gas Boiler COMPARE	18kw	91.1%	1 year	£942	COMPARE
Potterton Promax System HE Plus A 32kW Gas Boiler COMPARE	32kw	91.1%	1 year	£1050	COMPARE
Potterton Promax System HE Plus A 24kW Gas Boiler COMPARE	24kw	91.1%	1 year	£810	COMPARE
Potterton Performa Combi HE 24kW Combi Gas Boiler COMPARE	30kw	86%	1 year	£590	COMPARE
Potterton Promax SL Heat 18kW Regular Gas Boiler COMPARE	18kw	89.4%	2 years	£850	COMPARE
Potterton Promax SL Heat 15kW Regular Gas Boiler COMPARE	15kw	89.4%	2 years	£790	COMPARE
Potterton Promax Store 90L Regular Gas Boiler COMPARE	24kw	89%	2 years	£717	COMPARE
Potterton Promax Store 155L Regular Gas Boiler COMPARE	24kw	89%	2 years	£1697	COMPARE
Potterton Promax Store 150L Regular Gas Boiler COMPARE	24kw	89%	2 years	£2000	COMPARE
Potterton Ultra System 12kW Gas Boiler COMPARE	12kw	89%	2 years	£678	COMPARE
Potterton Ultra System 15kW Gas Boiler COMPARE	15kw	89%	2 years	£900	COMPARE
Potterton Ultra System 18kW Gas Boiler COMPARE	18kw	89%	2 years	£1332	COMPARE
Potterton Ultra System 21kW Gas Boiler COMPARE	21kw	89%	2 years	£1322	COMPARE
Potterton Ultra System 24kW Gas Boiler COMPARE	24kw	89%	2 years	£1800	COMPARE
Potterton Ultra Regular 24kW Gas Boiler COMPARE	24kw	89.1%	2 years	£1100	COMPARE
Potterton Ultra Regular 21kW Gas Boiler COMPARE	21kw	89.1%	2 years	£1110	COMPARE
Potterton Ultra Regular 18kW Gas Boiler COMPARE	18kw	89.2%	2 years	£988	COMPARE
Potterton Ultra Regular 15kW Gas Boiler COMPARE	15kw	89.2%	2 years	£988	COMPARE
Potterton Ultra Regular 12kW Gas Boiler COMPARE	12kw	89.2%	2 years	£984	COMPARE
Potterton Assure 25kW Combi Gas Boiler COMPARE	25kw	93%	2 years	£620	COMPARE
Potterton Assure 30kW Combi Gas Boiler COMPARE	30kw	93%	2 years	£732	COMPARE
Potterton Assure 15kW System Gas Boiler COMPARE	15kw	93%	2 years	£859	COMPARE
Potterton Assure 18kW System Gas Boiler COMPARE	18kw	93%	2 years	£891	COMPARE
Potterton Assure Heat 13kW Regular Gas Boiler COMPARE	13kw	93%	2 years	£854	COMPARE
Potterton Assure Heat 16kW Regular Gas Boiler COMPARE	16kw	93%	2 years	£948	COMPARE
Potterton Assure Heat 19kW Regular Gas Boiler COMPARE	19kw	93%	2 years	£1023	COMPARE
Potterton Assure Heat 25kW Regular Gas Boiler COMPARE	25kw	93%	2 years	£1147	COMPARE
Potterton Assure Heat 30kW Regular Gas Boiler COMPARE	30kw	93%	2 years	£1342	COMPARE
Potterton Assure 36kW Combi Gas Boiler COMPARE	36kw	93%	2 years	£0	COMPARE
Potterton Gold 18kW System Gas Boiler COMPARE	18kw	89%	2 years	£635	COMPARE
Potterton Gold 24kW System Gas Boiler COMPARE	24kw	89%	2 years	£676	COMPARE
Potterton Gold 28kW System Gas Boiler COMPARE	28kw	89%	2 years	£0	COMPARE
Potterton Titanium 12kW Regular Gas Boiler COMPARE	12kw	88%	7 years	£0	COMPARE
Potterton Titanium 15kW Regular Gas Boiler COMPARE	15kw	87.9%	7 years	£0	COMPARE
Potterton Titanium 18kW Regular Gas Boiler COMPARE	18kw	87.8%	7 years	£780	COMPARE
Potterton Titanium 24kW Regular Gas Boiler COMPARE	24kw	87.5%	7 years	£0	COMPARE
Potterton Titanium 30kW Regular Gas Boiler COMPARE	30kw	87.5%	7 years	£840	COMPARE
Potterton Assure 24kW System Gas Boiler COMPARE	24kw	93%	2 years	£0	COMPARE
Potterton Assure 12kW System Gas Boiler COMPARE	12kw	92%	2 years	£0	COMPARE

Ravenheat

Boiler Model	kW	Efficiency	Warranty	Typical Price
Ravenheat CSI 120 32kW Combi Gas Boiler COMPARE	32kw	90.6%	3 years	£1905	COMPARE
Ravenheat CSI 150 28kW Combi Gas Boiler COMPARE	28kw	88.90%	3 years	£985	COMPARE
Ravenheat CSI 85 Combi Gas Boiler COMPARE	22.3kw	86.9%	3 years	£590	COMPARE
Ravenheat WH80 25kW Combi Gas Boiler COMPARE	25kw	90.3%	5 years	£525	COMPARE
Ravenheat WH90 30kW Combi Gas Boiler COMPARE	25kw	90.3%	5 years	£525	COMPARE
Ravenheat WH100 Combi Gas Boiler COMPARE	26kw	90.3%	5 years	£599	COMPARE
Ravenheat WH130 29kW Combi Gas Boiler COMPARE	29kw	90.3%	5 years	£643	COMPARE
Ravenheat CSI Primary AAA 25kW Combi Gas Boiler COMPARE	25kw	90.1%	3 years	£645	COMPARE
Ravenheat CSI 120 25kW Combi Gas Boiler COMPARE	25kw	92%	3 years	£550	COMPARE
Ravenheat CSI 150 Combi Gas Boiler COMPARE	28kw	90.6%	3 years	£603	COMPARE
Ravenheat Combi Plus 32kW Gas Boiler COMPARE	32kw	90.7%	3 years	£1905	COMPARE
Ravenheat Combi Plus 42kW Gas Boiler COMPARE	42kw	90.37	3 years	£1519	COMPARE
Ravenheat Combi Store 32kW Gas Boiler COMPARE	32kw	90.7%	3 years	£1314	COMPARE
Ravenheat Combi Store 42kW Gas Boiler COMPARE	42kw	90.7%	3 years	£1558	COMPARE
Ravenheat CSI Primary 25kW Regular Gas Boiler COMPARE	25kw	90.2%	3 years	£636	COMPARE
Ravenheat HE 42 42kW Combi Gas Boiler COMPARE	42kw	90.6%	3 years	£1444	COMPARE
Ravenheat WH System 4-24 26kW Gas Boiler COMPARE	26kw	90.3%	5 years	£579	COMPARE
Ravenheat HE80 25kW Combi Gas Boiler COMPARE	25kw	90.3%	5 years	£957	COMPARE
Ravenheat HE98 30kW Combi Gas Boiler COMPARE	30kw	90.3%	5 years	£800	COMPARE
Ravenheat CS System 4-24 26kW Gas Boiler COMPARE	26kw	90.3%	2 years	£579	COMPARE
Ravenheat CS80 25kW Combi Gas Boiler COMPARE	25kw	90.3%	2 years	£545	COMPARE
Ravenheat CS90 30kW Combi Gas Boiler COMPARE	30kw	90.3%	2 years	£593	COMPARE
Ravenheat HE98S 30kW Combi Gas Boiler COMPARE	31kw	88.9%	5 year	£750	COMPARE
Ravenheat HE30S 31kW Combi Gas Boiler COMPARE	31kw	92%	7 years	£0	COMPARE
Ravenheat CS System 3- 20 26kW Gas Boiler COMPARE	20kw	92%	2 years	£0	COMPARE

Vaillant

Boiler Model	kW	Efficiency	Warranty	Typical Price
Vaillant ecoTEC plus 825 Combi Gas Boiler COMPARE	25kw	89.3%	5 years	£1025	COMPARE
Vaillant ecoTEC exclusive 832 Combi Gas Boiler COMPARE	32kw	89.3%	3 years	£1200	COMPARE
Vaillant ecoTEC plus 435 35kW Regular Gas Boiler COMPARE	35kw	89.20%	5 years	£1500	COMPARE
Vaillant ecoTEC plus 415 15kW Regular Gas Boiler COMPARE	15kw	88.70%	5 years	£790	COMPARE
Vaillant ecoTEC Pro 28 kW Combi Gas Boiler COMPARE	28kw	89.3%	2 years	£990	COMPARE
Vaillant ecoTec plus 937 Combi Gas Boiler COMPARE	37kw	89.3.%	5 years	£1500	COMPARE
Vaillant ecoTec plus 612 System Gas Boiler COMPARE	12kw	89.0%	5 years	£850	COMPARE
Vaillant ecoTec plus 615 System Gas Boiler COMPARE	15kw	89%	5 years	£965	COMPARE
Vaillant ecoTec plus 618 System Gas Boiler COMPARE	18kw	89.3%	5 years	£965	COMPARE
Vaillant ecoTec plus 624 System Gas Boiler COMPARE	24kw	89.4%	5 years	£1005	COMPARE
Vaillant ecoTec plus 630 System Gas Boiler COMPARE	30kw	89.4%	5 years	£1150	COMPARE
Vaillant ecoTec plus 637 System Gas Boiler COMPARE	37kw	89.2%	5 years	£1250	COMPARE
Vaillant EcoTEC Exclusive 32kW Combi Gas Boiler COMPARE	32kw	89.8%	5 years	£1395	COMPARE
Vaillant EcoTEC Exclusive Green IQ 835 Combi Gas Boiler COMPARE	35kw	94%	5 years	£1195	COMPARE
Vaillant ecoTEC Pro 30kW combi Gas boiler COMPARE	30kw	89.3%	2 years	£950	COMPARE
Vaillant EcoFIt sustain 825 Combi Gas Boiler COMPARE	25kw	89.3%	5 years	£1250	COMPARE
Vaillant EcoFIt sustain 830 Combi Gas Boiler COMPARE	30kw	89.3%	5 years	£1500	COMPARE
Vaillant EcoFIt sustain 835 Combi Gas Boiler COMPARE	35kw	89.3%	5 years	£1094	COMPARE
Vaillant ecoFIT pure 612 system Gas boiler COMPARE	12kw	89.3%	5 years	£925	COMPARE
Vaillant ecoFIT pure 615 system Gas boiler COMPARE	15kw	89.1%	5 years	£915	COMPARE
Vaillant ecoFIT pure 618 system Gas boiler COMPARE	18kw	89%	5 years	£975	COMPARE
Vaillant ecoFIT pure 625 system Gas boiler COMPARE	25kw	89%	5 years	£1175	COMPARE
Vaillant ecoFIT pure 630 system Gas boiler COMPARE	30kw	89.3%	5 years	£1256	COMPARE
Vaillant ecoTEC plus 832 Combi Gas Boiler COMPARE	32kw	89.3%	5 years	£1125	COMPARE
Vaillant ecoTEC plus 835 Combi Gas Boiler COMPARE	35kw	89.3%	5 years	£1275	COMPARE
Vaillant ecoTEC plus 838 Combi Gas Boiler COMPARE	38kw	89.3%	5 years	£1355	COMPARE
Vaillant ecoTEC plus 430 Regular Gas Boiler COMPARE	30kw	89.3%	5 years	£1550	COMPARE
Vaillant ecoTEC plus 424 24kW Regular Gas Boiler COMPARE	24kw	89.3%	5 years	£975	COMPARE
Vaillant ecoTEC plus 412 Regular Gas Boiler COMPARE	12kw	89.3%	5 years	£825	COMPARE
Vaillant ecoTEC plus 418 Regular Gas Boiler COMPARE	18kw	89.3%	5 years	£875	COMPARE
Vaillant ecoTEC Pro 24 kW Combi Gas Boiler COMPARE	24kw	89.3%	5 years	£955	COMPARE
Vaillant EcoTEC Exclusive Green IQ 843 Combi Gas Boiler COMPARE	43kw	94%	5 years	£1600	COMPARE
Vaillant EcoFIT pure 825 Combi Gas Boiler COMPARE	25kw	89%	5 years	£875	COMPARE
Vaillant EcoFIT pure 830 Combi Gas Boiler COMPARE	30kw	89%	5 years	£955	COMPARE
Vaillant EcoFIT pure 835 Combi Gas Boiler COMPARE	35kw	89%	5 years	£1005