Buying guide
Smart controls for heat pumps
GuideDraft for owner review — wording and facts to be checked against sources before launch.
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Why heat pumps are different
Heat pumps are most efficient when they run steadily at a lower flow temperature, rather than heating up quickly and switching off. Controls designed for boilers don’t always suit that, which is why some manufacturers make dedicated heat-pump products.
Check compatibility first
Heat-pump compatibility is model-specific:
- Hive says heat-pump compatibility for the Thermostat Mini is not guaranteed.
- Wiser says its kits interface with heat pumps through on/off control only.
- tado° lists its Smart Thermostat X Starter Kit as compatible with most heat pumps, and sells a separate Heat Pump Optimizer X for air-to-water, water-to-water and geothermal heat pumps, with a model list on its website.
Always check your exact heat-pump model against the manufacturer’s list, and ask your installer before changing controls. Some installations involve opening the heat-pump unit.
Subscriptions to watch
tado° Balance, which works only with the Heat Pump Optimizer X, costs £5.99 a month or £49.99 a year after the three months included with purchase (as listed by tado° on 5 November 2026). Add that to the running cost if you plan to keep it.
Our picks
See our full ranking of heat-pump controls.
Our picks
tado° Heat Pump Optimizer X UK
Best for: Owners of a compatible heat pump who want smarter app control.
tado° Wireless Smart Thermostat X Starter Kit (with Hot Water Control and OpenTherm)
Best for: Homes that may later add room-by-room control, including heat-pump homes.