Modern systems cool the hot weeks and heat all winter, often far cheaper than plug-in heaters. Size your rooms, see real costs, no pressure.
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Add rooms and watch the system build, one quiet outdoor unit can serve up to four rooms.
Which rooms do you want comfortable?
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Four rooms is the sweet spot for one outdoor unit, larger designs are covered at survey.
Most homes start with a bedroom or living room, you can add up to four.
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How well insulated is your home?
Would you use it for winter heating too?
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{{ heatUseLabel }}Air-to-air heat pump mode: efficient winter heating, and usually permitted development (cooling-only units need planning permission)
Your electricity unit rate
p/kWh, check your bill; we've pre-filled a typical rate
Your recommended system
Sized for Scottish homes · installed by our own F-Gas certified engineers
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Choose your spec level
Room
Size
Unit
Indicative model
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{{ u.kw }} kW
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{{ rCost }}Typical installed
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{{ rHeatSave }}Winter saving vs plug-in heaters
Cost to deliver the same winter warmth (per kWh of heat)
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This system (heat pump mode){{ valAc }}
Combined capacity above ~10 kW, electrical review at survey.
Conservatory results are provisional, glazed rooms vary widely, so this one is designed at survey.
All tiers typically achieve SCOP 4.0–5.2 in heating mode. Annual maintenance from £180 +VAT [pending confirmation]. Prices include VAT.
Our assumptions, no hidden maths
Sizing at ~100 W/m² cooling load, adjusted for room type and insulation
Inverter units typically draw ~25–30% of rated power once the room is at temperature
Your unit rate as entered; heating comparison uses each tier's real-world SCOP, not brochure figures
Install range reflects genuine quote variance (±15%); confirmed by free survey
Exact models and current stock confirmed at survey, specifications shown are typical for each class
Get your free room-by-room design report
Unit placement plan and pipework route
Running costs across the year, heating and cooling
Noise, planning and warranty details
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Estimates are indicative and confirmed by free site survey. Thermal Care Scotland Ltd · Bathgate, West Lothian · Refcom F-Gas certified. Also try our solar calculator, heat pump grant check or boiler tool.