Guides

Most boilers should read between 1.0 and 1.5 bar when the heating is off and the system is cold.

Stephen Day

Gas Safe Engineer

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Air source heating harnesses environmental warmth to heat homes efficiently, utilizing a device known as an air source heat pump.

Stephen Day

Gas Safe Engineer

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Air source heat pumps (ASHP) are popular for providing efficient heating solutions. These systems vary in size, typically ranging between 1 to 1.5 met...

Stephen Day

Gas Safe Engineer

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Repressurising a Baxi boiler means restoring the correct water pressure inside the boiler system. Boilers need a certain amount of pressure to functio...

Stephen Day

Gas Safe Engineer

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Low pressure in a Vaillant boiler is a common issue for many UK households. It affects combi boilers, system boilers, and combination units like the e...

Stephen Day

Gas Safe Engineer

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Worcester boiler pressure should usually sit around 1 to 1.5 bar when the system is cold

Stephen Day

Gas Safe Engineer

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A pressure release valve (PRV) on a boiler is a critical safety component ensuring that the system operates safely and effectively. It prevents excess...

Stephen Day

Gas Safe Engineer

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An expansion vessel is an essential component of a modern boiler system, serving a pivotal role in maintaining pressure levels within central heating...

Stephen Day

Gas Safe Engineer

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Based on data from over 7000 boiler installations completed by iHeat in the past 12 months, we’ve analysed the true cost of new boilers across the UK.

Stephen Day

Gas Safe Engineer

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Compare the best combi boilers in 2026, including Worcester Bosch, Alpha, Vaillant and Viessmann, based on warranty coverage, hot water performance, e...

Stephen Day

Gas Safe Engineer

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Choosing the best boiler brand comes down to reliability, warranty support, efficiency, and long-term performance. Here are the top boiler manufacture...

Stephen Day

Gas Safe Engineer

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A simple guide to the smallest combi boilers that fit inside kitchen cupboards and tight spaces.

Stephen Day

Gas Safe Engineer

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