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.

Boiler Service Plan vs Boiler Cover: What’s the Difference?
Boiler Service Plan vs Boiler Cover: Which Is Right for You? A boiler service plan pays for planned maintenance, while boiler cover…
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Ebac Heat Pump Review
Designed and manufactured in County Durham, Ebac heat pumps offer strong efficiency, straightforward controls and excellent UK-based support. Here is our installer’s…
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What Is a System Boiler?
A system boiler works with a hot-water cylinder to provide stored hot water, making it a strong option for homes with multiple…
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What Is a Combi Boiler?
Combi boilers package central heating and instantaneous hot water into one compact appliance. This guide explains their development, operation, sizes, outputs and…
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Should I Repair or Replace My Boiler?
A boiler fault does not automatically mean you need a new boiler. Here is how to decide between a sensible repair and…
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How Often Should an Air Source Heat Pump Be Serviced?
Most air source heat pumps should be professionally serviced once a year. Here is what an annual service should cover, why it…
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Best Combi Boilers for 2025
Best Combi Boilers for 2025: Top 5 Picks for Your Home As we move into 2025, upgrading to a new combi boiler…
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Boiler Upgrade Scheme Guide 2026 | Grants & Eligibility
The complete 2026 Boiler Upgrade Scheme guide: current grant values, eligibility rules, EPC evidence, the installer-led Ofgem process and what happens after…
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