Need a new boiler? Get FREE no-obligation quotes now!

Get FREE no-obligation quotes now!

No delays! Get quotes today
Compare quotes & get the best prices
Gas Safe & OFTEC registered engineers

The smarter way to find approved boiler engineers

What work do you require?

New Boiler
with installation

New Central Heating

Boiler Repair

Compare System Boilers

You can select up to 4 boilers. Simply add your choices to compare.

Filter boilers

Fuel type

Gas
(817)
Oil
(502)
Electric
(62)

Boiler type

Combi
(475)
Regular
(384)
System
(340)

Manufacturer

ACV
(9)
Alpha
(19)
Ariston
(11)
ATAG
(5)
Baxi
(17)
Biasi
(13)
Electric Heating Company
(12)
ELNUR
(10)
Ferroli
(14)
Firebird
(34)
Glow-worm
(9)
Grant
(15)
Heatrae Sadia
(7)
Ideal
(40)
Intergas
(4)
Johnson and Starley
(1)
Keston
(1)
Main
(4)
Mistral
(19)
Navien
(10)
Potterton
(22)
Ravenheat
(5)
Vaillant
(26)
Viessmann
(18)
Vokera
(13)
Warmflow
(18)
Worcester Bosch
(38)
Zanussi
(4)

Clear search

ACV

Boiler Model	kW	Efficiency	Warranty	Typical Price
ACV E-Tech W 15kW Mono System Electric Boiler VIEW	15kw	37%	1 year	£1,128	VIEW
ACV E-Tech W 15kW Tri Electric Boiler VIEW	15kw	37%	1 year	£1,160	VIEW
ACV E-Tech W 22kW Tri Electric Boiler VIEW	22kw	37%	1 year	£1,310	VIEW
ACV E-Tech W 28kW Tri Electric Boiler VIEW	28kw	37%	1 year	£1,560	VIEW
ACV E-Tech W 36kW Tri Electric Boiler VIEW	36kw	37%	1 year	£1,810	VIEW

Alpha

Boiler Model	kW	Efficiency	Warranty	Typical Price
Available
Alpha ProTec Plus 50 System Gas Boiler VIEW	54kw	92%	5 years	£983	VIEW
Alpha ProTec Plus 70 System Gas Boiler VIEW	74kw	92%	5 years	£985	VIEW
Alpha ProTec Plus 90 System Gas Boiler VIEW	98kw	92%	5 years	£1,144	VIEW
Alpha ProTec Plus 115 System Gas Boiler VIEW	121kw	92%	5 years	£1,246	VIEW
Alpha E-TEC 20S System Gas Boiler VIEW	26.1 kw	93%	10 years	£788	VIEW
Alpha E-TEC 30s System Gas Boiler VIEW	29.7 kw	93%	10 years	£851	VIEW
Alpha E-TEC 35s System Gas Boiler VIEW	35.1 kw	93%	10 years	£945	VIEW
Show Discontinued
Alpha CD28S System Gas Boiler VIEW	28kw	88.80%	3 years	£840	VIEW
Alpha CD20S System Gas Boiler VIEW	20kw	88.8%	3 years	£770	VIEW
Alpha CD12S System Gas Boiler VIEW	12kw	88.60%	3 years	£760	VIEW
Alpha InTec2 20SE System Gas Boiler VIEW	20kw	88.9%	5 years	£795	VIEW
Alpha InTec2 30SE System Gas Boiler VIEW	30kw	89%	5 years	£827	VIEW
Alpha InTec 12S System Gas Boiler VIEW	13kw	88.80%	3 years	£800	VIEW
Alpha InTec 18S System Gas Boiler VIEW	20kw	88.80%	3 years	£900	VIEW
Alpha InTec 28S System Gas Boiler VIEW	30kw	89.00%	3 years	£900	VIEW

Ariston

Boiler Model	kW	Efficiency	Warranty	Typical Price
Available
Ariston E-SYSTEM evo 24 System Gas Boiler VIEW	24kw	90%	2 years	£670	VIEW
Ariston E-SYSTEM evo 30 System Gas Boiler VIEW	30kw	90.2%	2 years	£775	VIEW
Ariston CLAS HE SYSTEM evo 18 System Gas Boiler VIEW	18kw	90.1%	5 years	£700	VIEW
Ariston CLAS HE SYSTEM evo 24 System Gas Boiler VIEW	24kw	90%	5 years	£725	VIEW
Ariston CLAS HE SYSTEM evo 30 System Gas Boiler VIEW	30kw	90%	5 years	£760	VIEW
Ariston E-System One 24kW Gas Boiler VIEW	24kw	90%	2 years	£739	VIEW
Ariston E-System One 30kW Gas Boiler VIEW	30kw	90%	2 years	£793	VIEW
Ariston Clas System One 18kW Gas Boiler VIEW	18kw	90%	8 years	£850	VIEW
Ariston Clas System One 24kW Gas Boiler VIEW	24kw	90%	8 years	£900	VIEW
Ariston Clas System One 30kw Gas Boiler VIEW	30kw	90%	8 years	£1,000	VIEW
Show Discontinued
Ariston GENUS HE 24 System Gas Boiler VIEW	24kw	90.3%	1 year	£571	VIEW

ATAG

Boiler Model	kW	Efficiency	Warranty	Typical Price
ATAG IS40 40kW System Gas Boiler VIEW	38.8 kw	94%	Up to 14 years	£N/A	VIEW
ATAG IS32 32kW System Gas Boiler VIEW	31.2 kw	94%	Up to 14 years	£N/A	VIEW
ATAG IS24 24kW System Gas Boiler VIEW	23.2 kw	94%	Up to 14 years	£N/A	VIEW
ATAG IS18 18kW System Gas Boiler VIEW	17.5 kw	93%	Up to 14 years	£N/A	VIEW
ATAG IS15 15kW System Gas Boiler VIEW	14.7 kw	93%	Up to 14 years	£N/A	VIEW

Baxi

Boiler Model	kW	Efficiency	Warranty	Typical Price
Best Sellers
Baxi 624 24kW System Gas Boiler VIEW	24kw	93%	7 years	£1,011	VIEW
Available
Baxi Megaflo System 15 Gas Boiler VIEW	15kw	91%	7 years	£711	VIEW
Baxi Megaflo System 18 Gas Boiler VIEW	18kw	91%	7 years	£740	VIEW
Baxi Megaflo System 24 Gas Boiler VIEW	24kw	92%	7 years	£822	VIEW
Baxi Megaflo System 28 Gas Boiler VIEW	28kw	92%	7 years	£852	VIEW
Baxi Megaflo System 32 Gas Boiler VIEW	32kw	92%	7 years	£940	VIEW
Baxi 615 15kW System Gas Boiler VIEW	15kw	93%	7 years	£877	VIEW
Baxi 618 18kW System Gas Boiler VIEW	18kw	93%	7 years	£889	VIEW
Baxi 818 18kW System Gas Boiler VIEW	18kw	93%	10 years	£913	VIEW
Baxi 824 24kW System Gas Boiler VIEW	24kw	93%	10 years	£957	VIEW
Baxi Platinum+ 32kW System Gas Boiler VIEW	32 kw	92%	10 years	£1,032	VIEW
Show Discontinued
Baxi EcoBlue System 12 Gas Boiler VIEW	12kw	89.1%	7 years	£880	VIEW
Baxi EcoBlue System 15 Gas Boiler VIEW	15kw	89.1%	7 years	£925	VIEW
Baxi EcoBlue System 18 Gas Boiler VIEW	18kw	89.1%	7 years	£960	VIEW
Baxi EcoBlue System 24 Gas Boiler VIEW	24kw	89.1%	7 years	£976	VIEW
Baxi EcoBlue System 28 Gas Boiler VIEW	28kw	89.1%	7 years	£1,112	VIEW
Baxi EcoBlue System 32 Gas Boiler VIEW	32kw	89.1%	7 years	£1,127	VIEW

Biasi

Boiler Model	kW	Efficiency	Warranty	Typical Price
Best Sellers
Biasi Advance Plus ErP 25kW System Gas Boiler VIEW	25kw	88.8%	5 years	£593	VIEW
Biasi Advance Plus ErP 30kW System Gas Boiler VIEW	30kw	88.7%	5 years	£615	VIEW
Available
Biasi Advance Plus ErP 16kW System Gas Boiler VIEW	16kw	88.7%	5 years	£570	VIEW
Biasi Advance 25kW System Gas Boiler VIEW	25kw	89%	5 years	£N/A	VIEW
Biasi Advance 30kW System Gas Boiler VIEW	30kw	89%	5 years	£N/A	VIEW
Biasi Advance Plus 7 25kW System Gas Boiler VIEW	25kw	92%	7 years	£N/A	VIEW
Biasi Advance Plus 7 30kW System Gas Boiler VIEW	30kw	92%	7 years	£N/A	VIEW
Show Discontinued
Biasi Inovia System ErP 25kW Gas Boiler VIEW	25kw	88.8%	5 years	£615	VIEW
Biasi Riva Plus ErP 28kW System Gas Boiler VIEW	28kw	88.1%	2 years	£525	VIEW
Biasi Riva Plus ErP 24kW System Gas Boiler VIEW	24kw	88%	5 years	£530	VIEW

Electric Heating Company

Boiler Model	kW	Efficiency	Warranty	Typical Price
Electric Heating Company Fusion Comet 6kW System Electric Boiler VIEW	6kw	100%	2 years	£1,346	VIEW
Electric Heating Company Fusion Comet System Electric Boiler 9kW VIEW	9kw	100%	2 years	£1,405	VIEW
Electric Heating Company Fusion Comet System Electric Boiler 12kW VIEW	12 kw	100%	2 years	£1,405	VIEW
Electric Heating Company Fusion Comet Electric System Boiler 14.4kW VIEW	14.4kw	100%	2 years	£1,462	VIEW
Electric Heating Company SlimJim Electric Flow Boiler 4kW VIEW	4kw	100%	2 years	£681	VIEW
Electric Heating Company SlimJim Electric Flow Boiler 7kW VIEW	7kw	100%	2 years	£703	VIEW
Electric Heating Company SlimJim Electric Flow Boiler 10kW VIEW	10kw	100%	2 years	£716	VIEW
Electric Heating Company SlimJim Electric Flow Boiler 12kW VIEW	12kw	100%	2 years	£753	VIEW
Electric Heating Company SlimJim Electric Flow Boiler 14.4kW VIEW	14.4kw	100%	2 years	£790	VIEW

ELNUR

Boiler Model	kW	Efficiency	Warranty	Typical Price
ELNUR Mattira 3kW System Electric Boiler VIEW	3kw	100%	2 years	£1,200	VIEW
ELNUR Mattira 5kW System Electric Boiler VIEW	5kw	100%	2 years	£1,200	VIEW
ELNUR Mattira 6kW System Electric Boiler VIEW	6kw	100%	2 years	£1,200	VIEW
ELNUR Mattira 8kW System Electric Boiler VIEW	8kw	100%	2 years	£1,200	VIEW
ELNUR Mattira 9kW System Electric Boiler VIEW	9kw	100%	2 years	£1,200	VIEW
ELNUR Mattira 10kW System Electric Boiler VIEW	10kw	100%	2 years	£1,200	VIEW
ELNUR Mattira 11kW System Electric Boiler VIEW	11kw	36.4%	2 years	£1,200	VIEW
ELNUR Mattira 12kW System Electric Boiler VIEW	12kw	100%	2 years	£1,200	VIEW
ELNUR Mattira 13kW System Electric Boiler VIEW	13kw	100%	2 years	£1,200	VIEW
ELNUR Mattira 15kW System Electric Boiler VIEW	15kw	36.4%	2 years	£1,200	VIEW

Ferroli

Boiler Model	kW	Efficiency	Warranty	Typical Price
Best Sellers
Ferroli BLUEHELIX RRT Tech 18S System Gas Boiler VIEW	18 kw	94%	10 years	£N/A	VIEW
Ferroli BLUEHELIX RRT Tech 24S System Gas Boiler VIEW	24 kw	94%	10 years	£N/A	VIEW
Ferroli BLUEHELIX RRT Tech 30S System Gas Boiler VIEW	30 kw	94%	10 years	£N/A	VIEW
Available
Ferroli LEB 6.0 TS 6kW Electric Boiler VIEW	6kw	99.5%	2 years	£N/A	VIEW
Ferroli LEB 7.5 TS 7.5kW Electric Boiler VIEW	7.5kw	99.5%	2 years	£N/A	VIEW
Ferroli LEB 9.0 TS 9kW Electric Boiler VIEW	9kw	99.5%	2 years	£N/A	VIEW
Ferroli LEB 12.0 TS 12kW Electric Boiler VIEW	12kw	99.5%	2 years	£N/A	VIEW
Show Discontinued
Ferroli Optimax HE PLUS 18 s System Gas Boiler VIEW	18kw	92.5%	5 years	£539	VIEW
Ferroli Optimax HE PLUS 25s System Gas Boiler VIEW	25kw	90.5%	5 years	£539	VIEW
Ferroli Optimax HE 31 S System Gas Boiler VIEW	30kw	90.6%	5 years	£589	VIEW
Ferroli Modena 18s HE System Gas Boiler VIEW	18kw	90.2%	5 years	£635	VIEW
Ferroli Modena 25s HE System Gas Boiler VIEW	25kw	90.4%	5 years	£635	VIEW
Ferroli Modena 32s HE System Gas Boiler VIEW	32kw	90.4%	5 years	£655	VIEW

Firebird

Boiler Model	kW	Efficiency	Warranty	Typical Price
Available
Firebird Envirogreen System C20 Internal Oil Boiler VIEW	20kw	92.5%	2 years	£1,560	VIEW
Firebird Envirogreen System C26 Internal Oil Boiler VIEW	26kw	92.6%	2 years	£1,600	VIEW
Firebird Envirogreen System C35 Internal Oil Boiler VIEW	35kw	92.6%	2 years	£1,950	VIEW
Firebird Envirogreen System C44 Internal Oil Boiler VIEW	44kw	93.8%	2 years	£2,180	VIEW
Firebird Envirogreen Systempac C20 External Oil Boiler VIEW	20kw	92.5%	2 years	£1,850	VIEW
Firebird Envirogreen Systempac C26 External Oil Boiler VIEW	26kw	92.6%	2 years	£1,900	VIEW
Firebird Envirogreen Systempac C35 External Oil Boiler VIEW	35kw	92.6%	2 years	£2,400	VIEW
Firebird Envirogreen Systempac C44 External Oil Boiler VIEW	44kw	93.8%	2 years	£2,550	VIEW
Firebird Envirogreen Slimline Systempac C20 External Oil Boiler VIEW	20kw	92.5%	2 years	£1,850	VIEW
Firebird Envirogreen Slimline Systempac C26 External Oil Boiler VIEW	44kw	92.6%	2 years	£1,900	VIEW
Firebird Envirogreen Slimline Systempac C35 External Oil Boiler VIEW	35kw	92.6%	2 years	£2,350	VIEW
Show Discontinued
Firebird Envirolite System Internal 20kW Oil Boiler VIEW	20kw	93%	2 years	£1,425	VIEW
Firebird Envirolite System Internal 26kW Oil Boiler VIEW	26kw	93%	2 years	£1,525	VIEW
Firebird Envirolite System Internal 35kW Oil Boiler VIEW	35kw	93%	2 years	£1,905	VIEW
Firebird Enviroblue Kitchen System Internal 20kW Oil Boiler VIEW	20kw	93%	2 years	£1,250	VIEW
Firebird Enviroblue Kitchen System Internal 26kW Oil Boiler VIEW	26kw	93%	2 years	£1,450	VIEW
Firebird Enviroblue Kitchen System Internal 35kW Oil Boiler VIEW	35kw	93%	2 years	£2,000	VIEW
Firebird Enviromax C20 Internal 20kW System Oil Boiler VIEW	20kw	94.8%	2 years	£1,555	VIEW
Firebird Enviromax C26 Internal 26kW System Oil Boiler VIEW	26kw	94.8%	2 years	£N/A	VIEW
Firebird Eviromax C35 Internal 35kW System Oil Boiler VIEW	35kw	94.4%	2 years	£1,945	VIEW
Firebird Eviromax C44 Internal 44kW System Oil Boiler VIEW	44kw	93.8%	2 years	£2,205	VIEW
Firebird Enviroblue SystemPac C26 External 26kW System Oil Boiler VIEW	26kw	94.8%	2 years	£N/A	VIEW
Firebird Enviroblue SystemPac C20 External 20kW System Oil Boiler VIEW	20kw	94.8%	2 years	£N/A	VIEW
Firebird Enviroblue SystemPac C35 External 35kW System Oil Boiler VIEW	35kw	94.4%	2 years	£N/A	VIEW
Firebird Enviroblue Slimline SystemPac C20 External System Oil Boiler VIEW	20kw	93%	2 years	£N/A	VIEW
Firebird Enviroblue Slimline SystemPac C26 Ext. 26kW System Oil Boiler VIEW	26kw	93%	2 years	£N/A	VIEW
Firebird Enviroblue Slimline SystemPac C35 External System Oil Boiler VIEW	35kw	92%	2 years	£N/A	VIEW

Glow-worm

Boiler Model	kW	Efficiency	Warranty	Typical Price
Available
Glow-worm Energy System 12kW Gas Boiler VIEW	12kw	89.3%	7 years	£700	VIEW
Glow-worm Energy System 15kW Gas Boiler VIEW	15kw	89.3%	7 years	£725	VIEW
Glow-worm Energy System 18kW Gas Boiler VIEW	18kw	89.3%	7 years	£765	VIEW
Glow-worm Energy System 25kW Gas Boiler VIEW	25kw	89.3%	7 years	£785	VIEW
Glow-worm Energy System 30kW Gas Boiler VIEW	30kw	89.3%	7 years	£850	VIEW
Glow-worm Ultimate3 25kW System Gas Boiler VIEW	25kw	89.7%	5 years	£725	VIEW
Glow-worm Easicom3 25s System Gas Boiler VIEW	25kw	89.7%	3 years	£595	VIEW
Show Discontinued
Glow-worm Ultimate2 25kW System Gas Boiler VIEW	25kw	89.3%	5 years	£820	VIEW

Grant

Boiler Model	kW	Efficiency	Warranty	Typical Price
Grant VortexBlue Kitchen/Utility 21kW System Oil Boiler VIEW	21kw	90.8%	2 years	£2,094	VIEW
Grant VortexBlue Kitchen/Utility 26kW System Oil Boiler VIEW	26kw	91.7%	2 years	£2,145	VIEW
Grant Vortex Eco Utility 21kW System Oil Boiler VIEW	21kw	92.7%	2 years	£1,510	VIEW
Grant Vortex Eco Utility 26kW System Oil Boiler VIEW	26kw	91.7%	2 years	£1,763	VIEW
Grant Vortex Eco Utility 35kW System Oil Boiler VIEW	35kw	92.4%	2 years	£1,875	VIEW
Grant Vortex Eco Wall Hung 16kW System Oil Boiler VIEW	16kw	90.1%	2 years	£1,650	VIEW
Grant Vortex Eco Wall Hung 21kW System Oil Boiler VIEW	21kw	90.5%	2 years	£2,015	VIEW
Grant Vortex Eco External System Module 21kW Oil Boiler VIEW	21kw	90.3%	2 years	£1,685	VIEW
Grant Vortex Eco External System Module 26kW Oil Boiler VIEW	26kw	90.3%	2 years	£1,785	VIEW
Grant Vortex Eco External System Module 35kW Oil Boiler VIEW	35kw	90.8%	2 years	£1,995	VIEW
Grant Vortex Pro Kitchen/Utility 26kW System Oil Boiler VIEW	26kw	91.7%	2 years	£1,595	VIEW
Grant VortexBlue Kitchen/Utility 36kW System Oil Boiler VIEW	36kw	94.5%	2 years	£2,075	VIEW
Grant Vortex Eco Wall Hung External 16kW System Oil Boiler VIEW	16kw	90.1%	2 years	£1,925	VIEW
Grant Vortex Eco Wall Hung External 21kW System Oil Boiler VIEW	21kw	90.5%	2 years	£2,045	VIEW
Grant Vortex Pro Kitchen/Utility 46kW System Oil Boiler VIEW	46kw	90%	2 years	£2,055	VIEW

Heatrae Sadia

Boiler Model	kW	Efficiency	Warranty	Typical Price
Heatrae Sadia Amptec 4kW Electric Boiler VIEW	4kw	99.8%	2 years	£N/A	VIEW
Heatrae Sadia Amptec 6kW Electric Boiler VIEW	6kw	99.8%	2 years	£N/A	VIEW
Heatrae Sadia Amptec 9kW Electric Boiler VIEW	9kw	99.8%	2 years	£N/A	VIEW
Heatrae Sadia Amptec 11kW Electric Boiler VIEW	11kw	99.8%	2 years	£N/A	VIEW
Heatrae Sadia Amptec 12kW Electric Boiler VIEW	12kw	99.8%	2 years	£N/A	VIEW
Heatrae Sadia Electromax 6kW Electric Boiler VIEW	6kw	37.9%	2 years	£1	VIEW
Heatrae Sadia Electromax 9kW Electric Boiler VIEW	9kw	37.9%	2 years	£2	VIEW

Ideal

Boiler Model	kW	Efficiency	Warranty	Typical Price
Best Sellers
Ideal Logic System S15 Gas Boiler VIEW	15 kw	93%	2 years	£785	VIEW
Ideal Logic System S18 Gas Boiler VIEW	18 kw	93%	2 years	£834	VIEW
Ideal Logic System S24 Gas Boiler VIEW	24.2 kw	94%	2 years	£856	VIEW
Ideal Logic System S30 Gas Boiler VIEW	30.3 kw	93%	2 years	£920	VIEW
Available
Ideal Vogue GEN2 S15 System Gas Boiler VIEW	15kw	92%	10 years	£976	VIEW
Ideal Vogue GEN2 S18 System Gas Boiler VIEW	18kw	93%	10 years	£1,074	VIEW
Ideal Vogue GEN2 S26 System Gas Boiler VIEW	26kw	93%	10 years	£1,142	VIEW
Ideal Vogue GEN2 S32 System Gas Boiler VIEW	32kw	93%	10 years	£1,264	VIEW
Ideal Logic Max S15 System Gas Boiler VIEW	15 kw	93%	10 years	£970	VIEW
Ideal Logic Max S18 System Gas Boiler VIEW	18 kw	93%	10 years	£N/A	VIEW
Ideal Logic Max S24 System Gas Boiler VIEW	24.2 kw	94%	10 years	£1,049	VIEW
Ideal Logic Max S30 System Gas Boiler VIEW	30.3 kw	93%	10 years	£1,084	VIEW
Ideal Vogue Max S15 System Gas Boiler VIEW	15 kw	92%	10 years	£1,030	VIEW
Ideal Vogue Max S18 System Gas Boiler VIEW	18 kw	93%	10 years	£1,125	VIEW
Ideal Vogue Max S26 System Gas Boiler VIEW	26 kw	93%	10 years	£1,201	VIEW
Ideal Vogue Max S32 System Gas Boiler VIEW	32 kw	93%	10 years	£1,258	VIEW
Ideal Logic Plus System S15 Gas Boiler VIEW	15 kw	93%	7 years	£874	VIEW
Ideal Logic Plus System S18 Gas Boiler VIEW	18 kw	93%	7 years	£885	VIEW
Ideal Logic Plus System S24 Gas Boiler VIEW	24.2 kw	94%	7 years	£918	VIEW
Ideal Logic Plus System S30 Gas Boiler VIEW	30.3 kw	93%	7 years	£954	VIEW
Show Discontinued
Ideal Vogue 15kW System Gas Boiler VIEW	15kw	92%	10 years	£840	VIEW
Ideal Vogue 18kW System Gas Boiler VIEW	18kw	93%	10 years	£930	VIEW
Ideal Vogue 26kW System Gas Boiler VIEW	26kw	93%	10 years	£910	VIEW
Ideal Vogue 32kW System Gas Boiler VIEW	32kw	93%	10 years	£1,004	VIEW

Intergas

Boiler Model	kW	Efficiency	Warranty	Typical Price
Intergas Compact HRE SB 18kW System Gas Boiler VIEW	18.7 kw	93%	7 years	£785	VIEW
Intergas Compact HRE SB 24kW System Gas Boiler VIEW	23.7 kw	93%	7 years	£875	VIEW
Intergas Compact HRE SB 30kW System Gas Boiler VIEW	27 kw	93%	7 years	£955	VIEW
Intergas Compact HRE SB 40kW System Gas Boiler VIEW	42.5 kw	92%	7 years	£1,135	VIEW

Johnson and Starley

Boiler Model	kW	Efficiency	Warranty	Typical Price
Johnson and Starley QuanTec 24s System 24kW Oil Boiler VIEW	24kw	89.6%	8 years	£N/A	VIEW

Keston

Boiler Model	kW	Efficiency	Warranty	Typical Price
Keston S30 30kW System Gas Boiler VIEW	30kw	89.5%	7 years	£1,100	VIEW

Main

Boiler Model	kW	Efficiency	Warranty	Typical Price
Main System Eco Elite 24kW Gas Boiler VIEW	24kw	89.1%	3 years	£618	VIEW
Main System Eco Elite 28kW Gas Boiler VIEW	28kw	88.8%	3 years	£635	VIEW
Main Eco Compact 15kW System Gas Boiler VIEW	15kw	93%	5 years	£610	VIEW
Main Eco Compact 18kW System Gas Boiler VIEW	18kw	93%	5 years	£675	VIEW

Mistral

Boiler Model	kW	Efficiency	Warranty	Typical Price
Best Sellers
Mistral Sealed System CS1 20kW Oil Boiler VIEW	20kw	92%	2 years	£2,300	VIEW
Mistral Sealed System CS2 26kW Oil Boiler VIEW	26kw	92%	2 years	£2,370	VIEW
Mistral Sealed System CS3 35kW Oil Boiler VIEW	35kw	92%	2 years	£2,700	VIEW
Mistral Sealed System CS4 41kW Oil Boiler VIEW	41kw	93%	2 years	£3,200	VIEW
Mistral Outdoor Sealed System COD SS1 20kW Oil Boiler VIEW	20kw	92%	2 years	£1,605	VIEW
Mistral Outdoor Sealed System COD SS2 26kW Oil Boiler VIEW	26kw	92%	2 years	£1,680	VIEW
Mistral Outdoor Sealed System COD SS3 35kW Oil Boiler VIEW	35kw	92%	2 years	£2,040	VIEW
Mistral Outdoor Sealed System COD SS4 41kW Oil Boiler VIEW	41kw	90%	2 years	£2,160	VIEW
Available
Mistral Sealed System Non-Condensing S1 20kW Oil Boiler VIEW	20kw	87%	2 yr. parts - 5 yr. heat exch	£1,320	VIEW
Mistral Sealed System Non-Condensing S2 26kW Oil Boiler VIEW	26kw	87%	2 yr. parts - 5 yr. heat exch	£1,380	VIEW
Mistral Sealed System Non-Condensing S3 35kW Oil Boiler VIEW	35kw	87%	2 yr. parts - 5 yr. heat exch	£1,500	VIEW
Mistral Sealed System Non-Condensing S4 41kW Oil Boiler VIEW	41kw	87%	2 yr. parts - 5 yr. heat exch	£1,680	VIEW
Mistral Outdoor Sealed System Non-Condensing OD SS1 20kW Oil Boiler VIEW	20kw	87%	2 yr. parts - 5 yr. heat exch	£1,500	VIEW
Mistral Outdoor Sealed System Non-Condensing OD SS2 26kW Oil Boiler VIEW	26kw	87%	2 yr. parts - 5 yr. heat exch	£1,590	VIEW
Mistral Outdoor Sealed System Non-Condensing OD SS4 41kW Oil Boiler VIEW	41kw	87%	2 yr. parts - 5 yr. heat exch	£1,920	VIEW
Mistral Outdoor Sealed System Non-Condensing OD SS3 35kW Oil Boiler VIEW	35kw	87%	2 yr. parts - 5 yr. heat exch	£1,710	VIEW

Navien

Boiler Model	kW	Efficiency	Warranty	Typical Price
Navien NCB 20kW System Gas Boiler VIEW	20kw	92%	7 years	£N/A	VIEW
Navien NCB 23kW System Gas Boiler VIEW	23kw	93%	7 years	£N/A	VIEW
Navien NCB 28kW System Gas Boiler VIEW	28kw	93%	7 years	£N/A	VIEW
Navien NCB 33kW System Gas Boiler VIEW	33kw	93%	7 years	£N/A	VIEW
Navien LCB700 21kW Internal System Oil Boiler VIEW	21kw	93%	10 years	£N/A	VIEW
Navien LCB700 28kW Internal System Oil Boiler VIEW	28kw	93%	10 years	£N/A	VIEW
Navien LCB700 36kW Internal System Oil Boiler VIEW	36kw	93%	10 years	£N/A	VIEW
Navien LCB700 21kW External System Oil Boiler VIEW	21kw	93%	10 years	£N/A	VIEW
Navien LCB700 28kW External System Oil Boiler VIEW	28kw	93%	10 years	£N/A	VIEW
Navien LCB700 36kW External System Oil Boiler VIEW	36kw	93%	10 years	£N/A	VIEW

Potterton

Boiler Model	kW	Efficiency	Warranty	Typical Price
Available
Potterton Promax System 12kW Gas Boiler VIEW	12kw	89%	2 years	£845	VIEW
Potterton Promax System 15kW Gas Boiler VIEW	15kw	89%	2 years	£935	VIEW
Potterton Promax System 18kW Gas Boiler VIEW	18kw	89%	2 years	£830	VIEW
Potterton Promax System 24kW Gas Boiler VIEW	24kw	89%	2 years	£875	VIEW
Potterton Promax System 32kW Gas Boiler VIEW	32kw	89%	2 years	£965	VIEW
Potterton Ultra System 12kW Gas Boiler VIEW	12kw	89%	2 years	£678	VIEW
Potterton Ultra System 15kW Gas Boiler VIEW	15kw	89%	2 years	£900	VIEW
Potterton Ultra System 18kW Gas Boiler VIEW	18kw	89%	2 years	£1,332	VIEW
Potterton Ultra System 21kW Gas Boiler VIEW	21kw	89%	2 years	£1,322	VIEW
Potterton Ultra System 24kW Gas Boiler VIEW	24kw	89%	2 years	£1,800	VIEW
Potterton Assure 15kW System Gas Boiler VIEW	15kw	93%	2 years	£859	VIEW
Potterton Assure 18kW System Gas Boiler VIEW	18kw	93%	2 years	£891	VIEW
Potterton Gold 18kW System Gas Boiler VIEW	18kw	89%	2 years	£635	VIEW
Potterton Gold 24kW System Gas Boiler VIEW	24kw	89%	2 years	£676	VIEW
Potterton Gold 28kW System Gas Boiler VIEW	28kw	89%	2 years	£800	VIEW
Potterton Assure 24kW System Gas Boiler VIEW	24kw	93%	2 years	£850	VIEW
Potterton Assure 12kW System Gas Boiler VIEW	12kw	93%	2 years	£900	VIEW
Show Discontinued
Potterton Promax System HE Plus A 12kW Gas Boiler VIEW	12kw	91.10%	2 years	£930	VIEW
Potterton Promax System HE Plus A 15kW Gas Boiler VIEW	15kw	91.1%	2 years	£825	VIEW
Potterton Promax System HE Plus A 18kW Gas Boiler VIEW	18kw	91.1%	1 year	£942	VIEW
Potterton Promax System HE Plus A 32kW Gas Boiler VIEW	32kw	91.1%	1 year	£1,050	VIEW
Potterton Promax System HE Plus A 24kW Gas Boiler VIEW	24kw	91.1%	1 year	£810	VIEW

Ravenheat

Boiler Model	kW	Efficiency	Warranty	Typical Price
Best Sellers
Ravenheat WH System 4-24 26kW Gas Boiler VIEW	26.2 kw	90.4%	5 years	£579	VIEW
Ravenheat WH System 3-20 21kW Gas Boiler VIEW	21.4 kw	90.4%	5 years	£N/A	VIEW
Available
Ravenheat HE98S System Gas Boiler VIEW	26.4 kw	92%	5 years	£800	VIEW
Ravenheat CS System 4-24 26kW Gas Boiler VIEW	26.2 kw	90.3%	2 years	£579	VIEW
Ravenheat CS System 3-20 26kW Gas Boiler VIEW	20kw	92%	2 years	£N/A	VIEW

Vaillant

Boiler Model	kW	Efficiency	Warranty	Typical Price
Best Sellers
Vaillant ecoTEC plus 615 System Gas Boiler VIEW	15.4 kw	93%	10 years	£971	VIEW
Vaillant ecoTEC plus 624 System Gas Boiler VIEW	24.4 kw	94%	10 years	£1,227	VIEW
Available
Vaillant ecoTEC plus 612 System Gas Boiler VIEW	12.2 kw	92%	10 years	£902	VIEW
Vaillant ecoTEC plus 618 System Gas Boiler VIEW	18.5 kw	94%	10 years	£1,098	VIEW
Vaillant ecoTEC plus 630 System Gas Boiler VIEW	30.4 kw	94%	10 years	£1,363	VIEW
Vaillant ecoTEC plus 637 System Gas Boiler VIEW	37.6 kw	94%	10 years	£1,537	VIEW
Vaillant ecoFIT pure 612 system Gas boiler VIEW	12.3 kw	94%	10 years	£894	VIEW
Vaillant ecoFIT pure 615 system Gas boiler VIEW	15.2 kw	94%	10 years	£980	VIEW
Vaillant ecoFIT pure 618 System Gas boiler VIEW	18.3 kw	94%	10 years	£1,058	VIEW
Vaillant ecoFIT pure 625 System Gas boiler VIEW	25.4 kw	94%	10 years	£1,243	VIEW
Vaillant ecoFIT pure 630 System Gas boiler VIEW	30.5 kw	94%	10 years	£1,227	VIEW
Vaillant ecoTEC exclusive Green iQ 627 System Gas Boiler VIEW	26.7 kw	94%	10 years	£1,390	VIEW
Vaillant ecoTEC plus 64kW System Gas Boiler VIEW	64kw	94%	5 years	£2,700	VIEW
Vaillant ecoTEC plus 48kW System Gas Boiler VIEW	48 kw	94%	5 years	£2,264	VIEW
Show Discontinued
Vaillant EcoTEC 65kW System Gas Boiler VIEW	65kw	95.5%	2 years	£1,500	VIEW
Vaillant EcoTEC 46kW System Gas Boiler VIEW	46kw	95.8%	2 years	£2,400	VIEW
Vaillant Home 12kW System Gas Boiler VIEW	12kw	93%	2 years	£2,090	VIEW
Vaillant Home 15kW System Gas Boiler VIEW	15kw	93%	2 years	£N/A	VIEW
Vaillant Home 18kW System Gas Boiler VIEW	18kw	93%	2 years	£N/A	VIEW
Vaillant Home 25kW System Gas Boiler VIEW	25kw	89.4%	2 years	£825	VIEW

Viessmann

Boiler Model	kW	Efficiency	Warranty	Typical Price
Best Sellers
Viessmann Vitodens 200-W B2HE 11kW System Boiler VIEW	11 kw	92%	Up to 10 years	£1,344	VIEW
Viessmann Vitodens 200-W B2HE 19kW System Boiler VIEW	19 kw	93%	Up to 10 years	£1,500	VIEW
Viessmann Vitodens 200-W B2HE 25kW System Boiler VIEW	25 kw	94%	Up to 10 years	£1,550	VIEW
Viessmann Vitodens 200-W B2HE 32kW System Boiler VIEW	32 kw	94%	Up to 10 years	£1,650	VIEW
Available
Viessmann Vitodens 100-W B1HC 19kW System Gas Boiler VIEW	19 kw	94%	Up to 10 years	£995	VIEW
Viessmann Vitodens 100-W B1HC 26kW System Gas Boiler VIEW	26 kw	94%	Up to 10 years	£995	VIEW
Viessmann Vitodens 100-W B1HC 30kW System Gas Boiler VIEW	30 kw	94%	Up to 10 years	£1,100	VIEW
Viessmann Vitodens 100-W B1HC 35kW System Gas Boiler VIEW	35 kw	94%	Up to 5 years	£1,175	VIEW
Viessmann Vitorondens 200-T 20kW System Oil Boiler VIEW	20.2 kw	97%	7 years	£N/A	VIEW
Viessmann Vitorondens 200-T 24kW System Oil Boiler VIEW	24.6 kw	97%	7 years	£N/A	VIEW
Viessmann Vitorondens 200-T 28kW System Oil Boiler VIEW	28.9 kw	97%	7 years	£N/A	VIEW
Viessmann Vitorondens 200-T 35kW System Oil Boiler VIEW	35.4 kw	97%	7 years	£N/A	VIEW
Viessmann Vitorondens 200-T 42kW System Oil Boiler VIEW	42.8 kw	97%	7 years	£N/A	VIEW
Viessmann Vitorondens 200-T 53kW System Oil Boiler VIEW	53.7 kw	97%	7 years	£N/A	VIEW
Show Discontinued
Viessmann B2HB Vitodens 200-W 30kW System Gas Boiler VIEW	30kw	89.1%	3 - 5 years	£1,480	VIEW
Viessmann B2HB Vitodens 200-W 19kW System Gas Boiler VIEW	19kw	89%	3 - 5 years	£1,250	VIEW
Viessmann B2HB Vitodens 200-W 26kW System Gas Boiler VIEW	26kw	89.1%	5 years	£1,375	VIEW
Viessmann B2HB Vitodens 200-W 35kW System Gas Boiler VIEW	35kw	89.2%	3 - 5 years	£1,300	VIEW

Vokera

Boiler Model	kW	Efficiency	Warranty	Typical Price
Available
Vokera Mynute i20 System Gas Boiler VIEW	20kw	89.5%	5 years	£550	VIEW
Vokera Mynute i30 System Gas Boiler VIEW	30kw	89.1%	5 years	£620	VIEW
Vokera Mynute 35HE System Gas Boiler VIEW	35kw	88.8%	2 years	£740	VIEW
Vokera Vision 20s System Gas Boiler VIEW	20kw	89%	5-7 years	£575	VIEW
Vokera Vision 25s System Gas Boiler VIEW	25kw	89.1%	5-7 years	£615	VIEW
Vokera Evolve S 18kW System Gas Boiler VIEW	18kw	94%	7 years	£442	VIEW
Vokera Evolve S 24kW System Gas Boiler VIEW	24kw	94%	7 years	£509	VIEW
Vokera Evolve S 30kW System Gas Boiler VIEW	30kw	94%	7 years	£638	VIEW
Vokera Evolve S 35kW System Gas Boiler VIEW	35kw	94%	7 years	£684	VIEW
Vokera Easi-Heat Plus 24S System Gas Boiler VIEW	24kw	93%	5 years	£500	VIEW
Vokera Easi-Heat Plus 30S System Gas Boiler VIEW	30kw	93%	5 years	£525	VIEW
Show Discontinued
Vokera Verve i50 System Gas Boiler VIEW	44kw	90%	2 years	£1,900	VIEW

Warmflow

Boiler Model	kW	Efficiency	Warranty	Typical Price
Best Sellers
Warmflow Agentis Internal System 33kW Oil Boiler VIEW	33 kw	A heat	5 years	£1,730	VIEW
Available
Warmflow Agentis Internal System 21kW Oil Boiler VIEW	21 kw	A heat	5 years	£1,500	VIEW
Warmflow Agentis Internal System 26kW Oil Boiler VIEW	26 kw	A heat	5 years	£N/A	VIEW
Warmflow Agentis External System 21kW Oil Boiler VIEW	21 kw	A heat	5 years	£1,740	VIEW
Warmflow Agentis External System 26kW Oil Boiler VIEW	26 kw	A heat	5 years	£1,800	VIEW
Warmflow Agentis External System 33kW Oil Boiler VIEW	33 kw	A heat	5 years	£2,000	VIEW
Warmflow Agentis Pro Internal System 21kW Oil Boiler VIEW	21 kw	A heat	5 years	£1,820	VIEW
Warmflow Agentis Pro Internal System 26kW Oil Boiler VIEW	26 kw	A heat	5 years	£1,890	VIEW
Warmflow Agentis Pro Internal System 26kW Oil Boiler VIEW	33 kw	A heat	5 years	£1,950	VIEW
Warmflow Agentis Pro External System 21kW Oil Boiler VIEW	21 kw	A heat	5 years	£1,800	VIEW
Warmflow Agentis Pro External System 26kW Oil Boiler VIEW	26 kw	A heat	5 years	£2,110	VIEW
Warmflow Agentis Pro External System 33kW Oil Boiler VIEW	33 kw	A heat	5 years	£2,500	VIEW
Show Discontinued
Warmflow Kabin Pak KS70HE System 21kW Oil Boiler VIEW	21kw	90.7%	2 years	£1,417	VIEW
Warmflow Kabin Pak KS90HE System 26kW Oil boiler VIEW	26kw	90.8%	2 years	£1,650	VIEW
Warmflow Kabin Pak KS120HE System 33kW Oil boiler VIEW	33kw	90.7%	2 years	£1,650	VIEW
Warmflow Utility US70HE System 21kW Oil Boilers VIEW	21kw	90.7%	5 years	£1,175	VIEW
Warmflow Utility US90HE System 26kW Oil boiler VIEW	26kw	90.8%	5 years	£1,585	VIEW
Warmflow Utility US120HE System 33kW Oil boilers VIEW	33kw	90.7%	5 years	£1,510	VIEW

Worcester Bosch

Boiler Model	kW	Efficiency	Warranty	Typical Price
Best Sellers
Worcester Bosch Greenstar 8000 Style 30kW System Gas Boiler VIEW	30 kw	94%	Up to 12 years	£1,317	VIEW
Worcester Bosch Greenstar 8000 Style 35kW System Gas boiler VIEW	35 kw	94%	Up to 12 years	£1,446	VIEW
Worcester Bosch Greenstar 8000 Life 30kW System Gas Boiler VIEW	30 kw	94%	Up to 12 years	£1,236	VIEW
Worcester Bosch Greenstar 8000 Life 35kW System Gas Boiler VIEW	35 kw	94%	Up to 12 years	£1,357	VIEW
Available
Worcester Bosch Greenstar 24i System Gas Boiler VIEW	24.6 kw	94%	Up to 7 years	£1,080	VIEW
Worcester Bosch Greenstar 12i System Gas Boiler VIEW	12.2 kw	94%	Up to 7 years	£908	VIEW
Worcester Bosch Greenstar 9i System Gas Boiler VIEW	9.2 kw	93%	Up to 8 years	£899	VIEW
Worcester Bosch Greenstar 15i System Gas Boiler VIEW	15.3 kw	94%	Up to 7 years	£971	VIEW
Worcester Bosch Greenstar 18i System Gas Boiler VIEW	18.4 kw	94%	Up to 7 years	£1,024	VIEW
Worcester Bosch Greenstar 21i System Gas Boiler VIEW	21.6 kw	94%	Up to 7 years	£1,034	VIEW
Worcester Bosch Greenstar 27i System Gas Boiler VIEW	27 kw	92%	Up to 7 years	£1,067	VIEW
Worcester Bosch Greenstar 30i System Gas Boiler VIEW	30 kw	92%	Up to 7 years	£1,114	VIEW
Worcester Bosch GB162 50kW System Gas Boiler VIEW	49.9 kw	93%	2 years	£2,209	VIEW
Worcester Bosch GB162 65kW System Gas Boiler VIEW	69.5 kw	93%	2 years	£2,646	VIEW
Worcester Bosch GB162 85kW System Gas Boiler VIEW	84.5 kw	N/a	2 years	£3,509	VIEW
Worcester Bosch GB162 100kW System Gas Boiler VIEW	99.5 kw	N/a	2 years	£3,837	VIEW
Worcester Bosch Greenstar Danesmoor 12/18 System Oil Boiler VIEW	18 kw	90%	2 years	£1,760	VIEW
Worcester Bosch Greenstar Danesmoor 18/25 System Oil Boiler VIEW	25 kw	90%	Up to 5 years	£1,893	VIEW
Worcester Bosch Greenstar Danesmoor 25/32 System Oil Boiler VIEW	32 kw	91%	Up to 5 years	£2,212	VIEW
Worcester Bosch Greenstar Danesmoor Utility 12/18 System Oil Boiler VIEW	18 kw	90%	Up to 5 years	£1,738	VIEW
Worcester Bosch Greenstar Danesmoor Utility 18/25 System Oil Boiler VIEW	25 kw	90%	Up to 5 years	£1,820	VIEW
Worcester Bosch Greenstar Danesmoor Utility 25/32 System Oil Boiler VIEW	32 kw	91%	Up to 5 years	£2,201	VIEW
Worcester Bosch Greenstar Danesmoor External 12/18 System Oil Boiler VIEW	18 kw	90%	Up to 5 years	£2,143	VIEW
Worcester Bosch Greenstar Danesmoor External 18/25 System Oil Boiler VIEW	25 kw	90%	2 years	£2,297	VIEW
Worcester Bosch Greenstar Danesmoor External 25/32 System Oil Boiler VIEW	32 kw	91%	Up to 5 years	£2,657	VIEW
Show Discontinued
Worcester Bosch Camray Utility 32 System Oil Boiler VIEW	32kw	94.2	5 years	£2,030	VIEW
Worcester Bosch Camray Utility 25 System Oil Boiler VIEW	25kw	93.2	5 years	£1,608	VIEW
Worcester Bosch Greenstar 30CDi Classic System Gas Boiler VIEW	30 kw	92%	7 years	£1,155	VIEW
Worcester Bosch Greenstar 35CDi Classic System Gas Boiler VIEW	35kw	92%	7 years	£1,187	VIEW

Zanussi

Boiler Model	kW	Efficiency	Warranty	Typical Price
Zanussi Ultra System 15kW Gas Boiler VIEW	15 kw	93%	2 years	£N/A	VIEW
Zanussi Ultra System 18kW Gas Boiler VIEW	18kw	92%	2 years	£N/A	VIEW
Zanussi Ultra System 24kW Gas Boiler VIEW	24.2 kw	93%	2 years	£N/A	VIEW
Zanussi Ultra System 30kW Gas Boiler VIEW	30.3 kw	93%	2 - 10 years	£N/A	VIEW

What work do you require?

Compare System Boilers

You can select up to 4 boilers. Simply add your choices to compare.

ACV

Alpha

Available

Show Discontinued

Ariston

Available

Show Discontinued

ATAG

Baxi

Best Sellers

Available

Show Discontinued

Biasi

Best Sellers

Available

Show Discontinued

Electric Heating Company

ELNUR

Ferroli

Best Sellers

Available

Show Discontinued

Firebird

Available

Show Discontinued

Glow-worm

Available

Show Discontinued

Grant

Heatrae Sadia

Ideal

Best Sellers

Available

Show Discontinued

Intergas

Johnson and Starley

Keston

Main

Mistral

Best Sellers

Available

Navien

Potterton

Available

Show Discontinued

Ravenheat

Best Sellers

Available

Vaillant

Best Sellers

Available

Show Discontinued

Viessmann

Best Sellers

Available

Show Discontinued

Vokera

Available

Show Discontinued

Warmflow

Best Sellers

Available

Show Discontinued

Worcester Bosch

Best Sellers

Available

Show Discontinued

Zanussi

Compare boilers

Try our boiler comparison tool

Need a new boiler?

Get FREE boiler quotes now!

Boiler Cost Calculator

Takes less than a minute

Need a boiler repair?

Get a FREE boiler repair quote!

Need a new boiler?

Find approved boiler engineers
in your area.