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Boiler help & advice

Expert guides and advice to help you make informed decisions.

How Much Does a Boiler Power Flush Cost?

25th June, 2026

Advice

How Much Does a Boiler Power Flush C...

A boiler power flush usually costs between £300 and £700, depending on the size and condition of your heating system.

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Stephen Day

Gas Safe Engineer

Power Flush vs Chemical Flush

25th June, 2026

Comparisons

Power Flush vs Chemical Flush

A chemical flush is best for light sludge, while a power flush is designed for more serious heating system contamination.

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Stephen Day

Gas Safe Engineer

How much does a new boiler cost in the UK

25th June, 2026

Guides

How much does a new boiler cost in t...

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.

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Stephen Day

Gas Safe Engineer

Boilers on Finance - The Best Pay Monthly and 0% Interest Deal

25th June, 2026

Guides

Boilers on Finance - The Best Pay Mo...

Boiler finance allows eligible homeowners to spread the cost of a new boiler through fixed monthly payments, rather than paying the full installation...

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Stephen Day

Gas Safe Engineer

What Should Boiler Pressure Be When Heating is Off?

22nd June, 2026

Guides

What Should Boiler Pressure Be When...

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

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Stephen Day

Gas Safe Engineer

Boiler Pressure Too High: What It Means and How to Fix It

22nd June, 2026

Advice

Boiler Pressure Too High: What It Me...

High boiler pressure is usually anything above 2.5 bar on the pressure gauge when the heating is on.

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Stephen Day

Gas Safe Engineer

Alpha Boilers Reviews

22nd June, 2026

Reviews

Alpha Boilers Reviews

Alpha Boilers have ascended to notable esteem in the UK heating market, with a focal ethos of delivering reliable and energy-efficient boilers.

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Stephen Day

Gas Safe Engineer

Air Source Heating - Air to Air Source Heat Pump

22nd June, 2026

Guides

Air Source Heating - Air to Air Sour...

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

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Stephen Day

Gas Safe Engineer

What Size Air Source Heat Pump Do You Need?

22nd June, 2026

Guides

What Size Air Source Heat Pump Do Yo...

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...

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Stephen Day

Gas Safe Engineer

How to Repressurise a Baxi Boiler

19th June, 2026

Guides

How to Repressurise a Baxi Boiler

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

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Stephen Day

Gas Safe Engineer

Repressurise Vaillant Boiler

19th June, 2026

Guides

Repressurise Vaillant Boiler

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...

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Stephen Day

Gas Safe Engineer

Worcester Bosch Boiler Pressure - UK Mega Guide

19th June, 2026

Guides

Worcester Bosch Boiler Pressure - UK...

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

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Stephen Day

Gas Safe Engineer