Heat pump controls are the settings and devices that decide how warm the water in your heating is, when the heat pump runs and when it heats hot water. The most important is weather compensation, which raises the flow temperature gradually as it gets colder outside and lowers it in milder weather, so the system only ever runs as warm as it needs to.
Across Argyll and Bute and Argyll and Bute, heating curves are fine-tuned after the first cold spell to suit how each house responds. For Argyll and Bute homes with extensions, we plan zones so the new space heats properly without making the heat pump cycle. Homeowners in Argyll and Bute get a walkthrough of their controls at handover, with a simple written guide to keep.
Who it suits
- Existing heat pumps that feel expensive to run or slow to respond
- Every new heat pump installation, set up at commissioning
- Homes with solar PV or a battery that want hot water timed to match
- Households considering a heat pump or time-of-use electricity tariff
Grants and rules for heat pumps in Scotland
In Scotland, heat pump funding comes through Home Energy Scotland rather than the Boiler Upgrade Scheme: a grant of up to £7,500 (up to £1,500 extra for eligible rural and island homes) and an optional interest-free loan of up to £7,500. For a home in Argyll and Bute, apply and receive the written offer before the installation date is fixed.
Installing heat pumps is zero-rated for VAT across the UK until 31 March 2027. Scotland has its own permitted development rules for air source heat pumps and its own building standards, so we confirm what applies to your property at survey.
Prices
Weather-compensating controls and set-up are included in every full system price. See the guide prices for full systems.
Towns we cover in Argyll and Bute
We cover 6 towns in Argyll and Bute for heat pump controls and tariffs. Each links to local guide prices and the grant position for Scotland.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Campbeltown | PA28 | Girvan | 7 h 04 min |
| Dunoon | PA23 | Gourock | 6 h 57 min |
| Helensburgh | G84 | Greenock | 6 h 57 min |
| Lochgilphead | PA31 | Dunoon | 6 h 56 min |
| Oban | PA34 | Lochgilphead | 6 h 51 min |
| Rothesay | PA20 | – | 6 h 59 min |
Heat pump controls and tariffs questions
What flow temperature should my heat pump run at?
It depends on the design: the flow temperature is set so your radiators or underfloor heating can heat each room on a cold day. Well-designed systems typically run at around 35–50°C at their coldest, and lower in milder weather through weather compensation. Your design paperwork states the design flow temperature, and we set the heating curve to match it.
How should I set the hot water on a heat pump?
Most households heat hot water once or twice a day at set times rather than on demand. Timing the main heat for a cheaper tariff period, or for the middle of the day when solar panels generate, helps keep costs down. A weekly legionella cycle raises the water temperature higher, and we schedule it at a sensible time.
Can I control my heat pump from my phone?
Many heat pumps offer an app or work with smart thermostats, letting you change temperatures, set schedules and see energy use from your phone. Features vary by make and model, and app control usually needs a reliable internet connection at home. The heating keeps running on its own settings if the connection drops.
Is a heat pump tariff a good idea?
A heat pump or time-of-use tariff can lower running costs if your household can shift hot water heating and some space heating into the cheaper periods. Whether it suits you depends on the rates, the standing charge, your routine and whether you have a battery. Compare the total expected cost on your own usage, not only the headline rate.

