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 4.7 stars

1,330 reviews

 4.7 stars

1,330 reviews

Warmflow Agentis Pro Internal Combi 21kW Oil Boiler

Warmflow Agentis Pro Internal Combi 21kW Oil Boiler Boiler
Typical Price (inc VAT)
£2,500
Typical installation Cost (inc VAT)*
£1000 - £1500
Sundries (Filter, Flue, etc)
£300
Total Cost
£3,800 - £4,300

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Make Warmflow
Model Agentis Pro Internal Combi 21kW Oil Boiler
Is Condensing Yes
Efficiency Rating AA
Band Rating AA rating
LPG Compatible No
Standard Warranty 5 years
Central Heating Max. Output 21 kW
Mounting Floor standing
Flow Rate 18 l/min
Typical Price (inc VAT) £2,500
Typical installation Cost (inc VAT)* £1000 - £1500
Sundries (Filter, Flue, etc) £300
Total Cost £3,800 - £4,300
ERP Rating A
Hot Water Max. Output 21 kW

* This is a guide price for a straightforward, like-for-like boiler replacement. Installation costs will vary dependent on work required.

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The Professional Agentis Internal Combi oil boiler from Warmflow has the same features and benefits of the Agentist Internal system boiler, in addition to numerous factory fitted accessories which enable quicker installation and maximises space within the system. The Agentis Internal Combi oil boiler is the UK & Ireland’s only AAA rated oil boiler which will provide hot water for central heating and domestic use from one compact unit. Warmflow claims that this boiler can save homeowners up to 5ltrs of fuel per week compared to other leading combi oil boiler brands. The Warmflow Agentis internal combi boiler uses Warmflow’s unique patented stainless steel heat exchanger with the latest Riello Low NOx burner technology to offer customers unparalleled efficiency and ease of installation. The Agentis combi also includes a factory fitted 24ltr hinged expansion vessel, a factory fitted pressure relief and reducing valve and a factory fitted DHW mini expansion vessel. This boiler is also available in 26kW and 33kW.

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Excellent 4.7 out of 5

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