Boiler help & advice

A combination boiler, commonly known as a combi boiler, is an advanced heating unit that provides both central heating and hot water from a single uni...

Stephen Day

Gas Safe Engineer

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Picking the correct size combi boiler for your home

Stephen Day

Gas Safe Engineer

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Homes that are not connected to the mains gas grid in the UK need alternative heating systems. Several options are available, with different benefits,...

Stephen Day

Gas Safe Engineer

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The Vaillant F22 fault means your boiler pressure is too low and needs topping up.

Stephen Day

Gas Safe Engineer

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A combi boiler should be around 1.0 to 1.5 bar when cold and up to about 2.0 bar when hot.

Stephen Day

Gas Safe Engineer

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You bleed a radiator by turning off the heating, opening the bleed valve and releasing trapped air until water flows steadily.

Stephen Day

Gas Safe Engineer

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A boiler losing pressure is usually caused by a leak, trapped air, or a faulty valve - here’s how to fix it.

Stephen Day

Gas Safe Engineer

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If you’ve noticed your energy bills rising recently, this could be down to a number of reasons. Sludge in your radiators can prevent your radiators re...

Stephen Day

Gas Safe Engineer

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Radiator dials, often referred to as bleed valves or knobs, are crucial for managing the performance of heating systems. They control air and water fl...

Stephen Day

Gas Safe Engineer

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If your radiators aren’t heating up, it’s usually caused by trapped air, sludge, or a boiler pressure problem.

Stephen Day

Gas Safe Engineer

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Most homes stay warm in winter with heating set at 60 to 70°C and hot water at 50 to 55°C.

Stephen Day

Gas Safe Engineer

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A simple breakdown of the main central heating systems in UK homes and how to decide which one suits your property.

Stephen Day

Gas Safe Engineer

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