Boiler Guides

In most cases, a stuck diverter valve is caused by a build-up of limescale or sludge inside the valve, general wear and tear over time, a lack of regular boiler…

A boiler airlock happens when a pocket of air gets trapped inside your central heating system or hot water pipes, stopping water from flowing properly. The most common causes include…

Boiler short cycling happens when your boiler keeps switching on and off repeatedly in short bursts, rather than completing a full heating cycle. The most common causes include low boiler…

The most common Viessmann boiler problems include no hot water or heating, error fault codes appearing on the display, low boiler pressure, strange noises, pilot light issues, boiler lockout, a…

A faulty diverter valve on a boiler is most commonly caused by wear and tear over time, limescale buildup, debris or sludge in the system, a stuck or seized valve,…

Boiler problems never happen at a convenient time. Losing heating in winter or hot water at any time of year disrupts daily life quickly — and knowing what you’re dealing…

Switching from a conventional boiler, system boiler, or back boiler to a combi is one of the most common heating upgrades in the UK. For most homes it’s an excellent…

Frozen Condensate Pipe? Here’s How to Fix Your Boiler This Winter If your boiler has stopped working during a cold spell and is showing a fault code, there’s a good…

Signs your Old Boiler Might need to Be Replaced The last thing you want during a cold snap is your boiler giving up. Most modern boilers have a lifespan of 10…

If you are thinking about replacing your old boiler and the Ideal Logic Plus 30kW keeps coming up in your research, you are in the right place. In this Ideal…

If you’re comparing Worcester Bosch and Ideal boilers in 2026 and can’t decide which brand to go with, you’re not alone. These two manufacturers consistently top the shortlists of UK…