Fitting & maintenance - how to guides

Choosing the right boiler size is key to keeping your home warm and your energy bills under control. Our complete guide explains boiler kW ratings, provides a boiler sizing chart, and helps you work out what size boiler you need for your home.

Wondering how long a heat pump installation takes? Our expert guide explains the full timeline – from surveys and system checks to on-site fitting – for both air source and ground source heat pumps. Learn what to expect at every stage, how long each phase takes, and the factors that can speed up or delay your installation.

Regular heat pump maintenance is the key to efficiency, lower energy bills, and fewer breakdowns. Our guide covers simple DIY checks, servicing tips, and troubleshooting advice to keep your air source or ground source heat pump running smoothly year-round.

Ground source vs air source heat pumps – which is best for your home? Our guide compares installation, costs, efficiency, and long-term performance to help you decide which option best suits your property, budget, and heating needs.

Wondering what is making your radiator keep turning off out of seemingly nowhere? From sticky thermostatic radiator valves (TRVs) and low boiler flow temperatures to trapped air or hidden sludge, there are several common causes behind a radiator cutting out. This guide walks you through simple checks and fixes to get your heating running smoothly again.

Thinking about installing a heat pump but not sure what it’ll do to your bank balance? This expert guide breaks down the real-world costs to install a heat pump in the UK – from equipment and labour to running costs, grants, and the odd hidden expense that sneaks in like an unexpected takeaway order.

Not sure whether you need a vented or unvented hot water cylinder? Our expert guide explains the differences, pros and cons, and which system suits your home best.