Boilers explained plainly: upgrade options, biomass and electric alternatives, and honest comparisons against a heat pump. No sales pitch, just what each option involves.
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Upgrading Old Gas BoilersSigns it’s genuinely time to replace an old gas boiler, and what your realistic options are.
Costs and quotes
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New Boiler Cost UK 2026: What You’ll Pay
Typical prices for combi, system and regular boilers, plus what affects the final quote.
Replacing an old system
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Replacing a Back Boiler
What happens to the fire, the flue and the hot water, and your replacement options.
Boiler alternatives
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Modern Electric Boilers
How electric boilers work and where they make sense compared to gas.
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Biomass Boilers: A Comprehensive Guide
Wood pellet and log boilers explained: how they work, running costs, and upkeep.
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Best Biomass Pellet Boilers UK
How the leading pellet boiler brands compare, if biomass is the right fit for your home.
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Is an Electric Boiler Worth Fitting in a Small Rental Flat?
Cheap to fit, dear to run: when it makes sense and what beats it.
Boiler vs heat pump
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Compare Heat Pumps & Boilers
The full decision guide: efficiency, running costs, and what suits your home.
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Heat Pump or Gas Boiler: Ten Years of Running Costs
Install, grant, running and servicing costs added up over a decade.
Ready for a price?
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iHeat fits Worcester Bosch, Vaillant, Viessmann and Ideal boilers across the UK, with installation as soon as the next day and 0% finance on selected models. The online quote takes about 60 seconds.
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