Enerus knowledge centre
Heating advice for better decisions
Practical guidance on heat pumps, boilers, servicing, grants, running costs and comfortable home heating from the Enerus team.
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Guides
Guides articles
Clear explanations based on real heating systems, installation work and the questions homeowners ask.
Heat Pump vs Gas Boiler: Which Is Better in 2026?
Choosing between a heat pump and gas boiler? Compare running costs, installation, hot water and comfort, then test your own tariff assumptions.
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What Size Solar Battery Do I Need? A Practical UK Guide
A bigger home battery is not automatically better. Use the Enerus calculator and practical sizing checks to estimate a sensible capacity from…
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Do Heat Pumps Need New Radiators? A Practical Guide
Do heat pumps need new radiators? Not always. Learn how a room-by-room heat-loss calculation shows which existing radiators can stay, which may…
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Boiler Pressure Keeps Dropping? Causes & Safe Checks
If your boiler pressure keeps dropping, repeatedly adding water is not a lasting fix. Learn what different pressure patterns can mean, which…
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What Size Air Source Heat Pump Do I Need?
Heat pump size is not decided by bedroom count or the output of your old boiler. Learn how room-by-room heat loss, North…
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No Hot Water but Heating Works? What to Check
Your radiators are warm but the taps are cold. Use this practical guide and symptom checker to understand the likely causes, the…
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How Long Does It Take to Replace a Boiler?
A straightforward boiler replacement can often be completed in one day, while conversions and relocations usually take longer. Here is what affects…
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Replace an Oil Boiler With a Heat Pump: £9,000 Grant Guide
Oil- and LPG-heated homes without a mains-gas connection may now qualify for £9,000 towards a heat pump. Here is what North East…
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Can You Use Existing Radiators With a Heat Pump?
You may not need to replace every radiator when fitting a heat pump. This guide explains how a proper room-by-room assessment identifies…
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How Much Does a New Boiler Cost in the North East in 2026?
A new boiler installation from Enerus starts at £1,799, but the final cost depends on the boiler, property and work involved. Here…
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