Diverter Valves Explained: Why They Fail and What Replacement Costs
Inside a combi boiler, the diverter valve sends hot water either to the heating circuit or to the domestic hot water taps,…
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Guides, tips, and advice on boiler maintenance, fault diagnosis, and home heating from the Boiler & Spares team.
Plumbing Maintenance Checklist: Prevent Leaks, Blockages, and Water Damage
A plumbing maintenance checklist reduces the risk of leaks, blockages, and costly water damage. In the United Kingdom, the average household uses…
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Gas Boiler Safety: Carbon Monoxide Risks, Warning Signs, and Detectors
Gas boilers heat millions of UK homes, but faulty combustion can release carbon monoxide (CO), an odourless gas that can kill within…
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Radiator Not Heating Up? Bleeding, Balancing, and Boiler-Related Causes
A radiator that stays cold or only warms at the bottom usually points to trapped air, poor system balance, or a boiler…
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Drain Unblocking: Causes of Slow Drains and When to Call a Plumber
Slow drains often start with a small restriction that worsens over weeks, increasing the risk of odours, leaks, and water damage. Hair,…
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Complete Guide to Boiler and Plumbing
This complete guide to boiler and plumbing explains how domestic heating and water systems work, what typically fails, and how to respond…
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Hard Water Problems in Plumbing & How to Fix Them
Hard water carries high levels of dissolved minerals, mainly calcium and magnesium. As water flows through pipework and appliances, these minerals can…
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Smart Thermostats vs. Old School Controllers — Which Wins?
Heating controls have changed from simple dials and timers to connected smart thermostats with app control and automation. Each option promises comfort…
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We Asked 15 Engineers: What’s the Most Common Boiler Fault?
Boiler faults often appear without warning, yet many follow familiar patterns. To identify the issues homeowners face most often, we asked 15…
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Boiler vs. Heat Pump: Which Is Right for Your Home in 2026?
Choosing between a boiler and a heat pump affects comfort, running costs, and carbon emissions. Boilers burn gas or oil to heat…
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