The iNHEAT 7kW SpaLine is built for the temperatures a hot tub actually needs. Full Inverter control matches its output to demand, while EVI technology keeps it operating when the weather falls as low as -25°C.
A conventional electric heater is a blunt tool: it switches on at full power and switches off again. SpaLine continuously adjusts compressor output to suit the water temperature and conditions outside.
That steadier approach means less wasted energy, a more stable set temperature and less stop-start strain on the compressor. Your actual saving will depend on the spa, cover, insulation, weather and electricity tariff, but the principle is refreshingly simple: buy less heat from the socket.
EVI cold-weather performance, reversible heating and cooling, integrated WiFi and quiet-running control are all part of the unit.
Enhanced Vapour Injection supports operation down to -25°C ambient temperature, so the heat pump is designed for year-round use rather than fair-weather duty.
Integrated WiFi connects to the Smartlife app, letting you check the water temperature, adjust settings and manage the unit without walking out to the spa.
Published sound pressure is below 32dB(A) at 10 metres. Silent mode reduces output when maintaining temperature matters more than rapid recovery.
Reversible operation gives a 10–40°C water set range. Keep the spa at bathing temperature or cool the water for a fresher summer soak.
