Air source and ground source heat pump guides
Compare the best smart thermostats for heat pumps in the UK. See why Homely, Passiv and tado outperform Nest and Hive for heat pump efficiency.
15 January 2026 How long do heat pumps last? Air source units last 15-20 years, ground source up to 50 years. We cover maintenance factors, servicing costs and replacement planning.
14 January 2026 Heat pump hot water cylinder guide covering 48-52C storage, legionella pasteurisation at 60C, immersion backup, mixing valves and sizing for UK households.
13 January 2026 Heat pump problems UK homeowners face most often: reduced output, short cycling, icing, strange noises, error codes and which issues you can fix yourself.
13 January 2026 Do you need a heat pump buffer tank? We explain short cycling prevention, the 25-litres-per-kW sizing rule, defrost support and when a buffer is unnecessary.
12 January 2026 Heat pump weather compensation explained: how curves adjust flow temperature to outdoor conditions, why every 1C reduction boosts COP by up to 2.5% and setup tips.
11 January 2026
Heat pump radiator sizing guide for the UK. Covers why heat pumps run at 35-55C, the 2.4x upsizing factor at 45C, low-temp radiators and UFH options.
11 January 2026 Heat pump defrost cycle explained: how it works by reversing refrigerant flow, why it triggers between -5C and 5C, typical duration and impact on efficiency.
10 January 2026 Heat pump guide for semi-detached houses covering 6-9kW sizing for 3-bed semis, boundary noise rules, permitted development and installed costs after grants.
9 January 2026 Ground source heat pump costs in the UK range from £16,200-£49,000. We explain borehole vs horizontal loops, the £7,500 BUS grant and which homes benefit most.
9 January 2026