SmartClimate

Climate controlled, all year round.

Heat pump, solar and battery calculator

What a heat pump, solar panels and a battery would cost to run in a home like yours, half-hour by half-hour, against a gas boiler.

Advanced settings and detailed results
How it works. Heathrow typical-year weather, six tariff scenarios and manufacturer performance tables. A steady-state space-heating estimate, with assumptions and every half-hour available to inspect.
Your data

Start with the evidence

Times must identify the start of each half-hour with a UTC Z or a valid Europe/London offset. Files stay in your browser.

Advanced: import your own legacy CSVs

Loading Samsung performance, Heathrow weather and tariffs…

Your heating system

Choose your assumptions

Multiple units share the heating load equally; all selected units operate at the same conditions. Lead/lag staging and mixed models are not simulated. The A2A indoor-unit ratio applies to each outdoor unit. Samsung available output comes from the selected model’s temperature-dependent table. Air-to-air indoor temperature changes the performance lookup; the agreed building demand model retains its 15°C balance point. Changing the indoor setting does not recalculate building heat loss.

Part-load sensitivity · assumed values

Compare the baseline with cycling below an assumed minimum output. These settings are illustrative, not Samsung specifications.

Try minimum outputs of 20%, 30% or 40% and Cd values of 0, 0.10 or 0.25. Above minimum output, COP stays at the baseline value. Existing defrost treatment is unchanged; no additional penalty is added.