Boiler help & advice

Compare efficient gas boilers, estimate potential savings and decide whether to replace your boiler or improve the one you have.

Stephen Day

Gas Safe Engineer

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Load compensation responds to indoor temperature, while weather compensation responds to outdoor temperature.

Stephen Day

Gas Safe Engineer

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Compare the current Viessmann Vitodens range and find the right boiler for your home.

Stephen Day

Gas Safe Engineer

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The Vaillant F54 fault code indicates a problem with the gas supply to the boiler and may appear alongside F28 or F29.

Stephen Day

Gas Safe Engineer

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The cost of running an electric boiler can be high, especially if you live in the UK. Let's find out if a gas boiler is still more cost effective.

Stephen Day

Gas Safe Engineer

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A boiler flue carries combustion gases outside. Here is how to identify yours and when to have it checked.

Stephen Day

Gas Safe Engineer

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Biomass is an environmentally considerate and renewable energy source, generated from the burning of wood, plants and organic natural materials, such...

Stephen Day

Gas Safe Engineer

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The Viessmann F2 fault means the boiler's temperature limiter has responded, placing the burner into a fault state.

Stephen Day

Gas Safe Engineer

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Understand what to budget for a boiler replacement, how conversions and relocation affect the total, and what to check before accepting a quote.

Stephen Day

Gas Safe Engineer

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Compare cupboard-friendly combi boilers by size, hot-water performance and installation space to find the right fit for your home.

Stephen Day

Gas Safe Engineer

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A smart thermostat can make a massive difference to your home and can be one of the best ways to control heating options without needing an incredibl...

Stephen Day

Gas Safe Engineer

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Compare the UK's top boiler manufacturers for 2026.

Stephen Day

Gas Safe Engineer

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