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How much electricity does a hot tub use? Work out your hot tub running costs
Estimate the monthly cost of heating and massage for your hot tub in seconds, based on your country, your tariff and how you use it, and find out how much you could save with Ecospa, Nordic Insulation and a heat pump.
- Set up your hot tub: heating system and massage.
- Adjust your usage: massage minutes per day, days per month and your price per kWh.
- Compare options: standard, Ecospa and Ecospa + Nordic, with the savings in euros.
Want the exact running costs of the hot tub you have in mind?
Tell us the model, where you'll install it and how you'll use it. We'll prepare a personalised estimate and a no-obligation quote for you.
How to reduce your hot tub's energy use
A hot tub's energy use doesn't just depend on how often you use it: insulation, the cover and the heating system all make a real difference to your bill.
Ecospa
High-efficiency insulation that cuts heat loss from the shell and cabinet: the water stays warm for longer with fewer hours of heater use.
Discover Ecospa-80%heatingEcospa + Nordic Insulation
A 5-layer insulation system designed for cold climates and year-round outdoor use. It's the calculator's most energy-efficient set-up.
Discover Nordic Insulation-71%vs. electric heaterHeat pump
Heats the water using far less electricity than an electric heater and, in its reversible version, cools it in summer too.
Discover the heat pumpEnergy Saving Cover
A thermal cover that prevents evaporation and heat loss from the water surface, the biggest source of energy loss in an uncovered hot tub.
Discover the thermal coverFactory energy data
Heating use by set-up
- Calculation scenario: constant ambient temperature of 10°C, water at 36°C and hot tub with the cover on.
- Heating: kWh per day the hot tub needs to maintain its temperature, depending on the system and insulation.
- Massage: 1.85 kW per massage pump and 1.15 kW for the blower, multiplied by your minutes of use.
- Electricity price: average household reference price for each country. You can enter your actual price.
Want to dig deeper? Read how to improve the energy efficiency of an outdoor hot tub and the benefits of hot tub insulation.
| Set-up | kWh/day | Hours/day | Saving |
|---|---|---|---|
| Electric heater · standard | 30.0 | 10.0 | — |
| Electric heater + Ecospa | 9.3 | 3.1 | -69% |
| Electric heater + Ecospa + Nordic | 6.0 | 2.0 | -80% |
| Heat pump · standard | 8.6 | 10.0 | -71% |
| Heat pump + Ecospa | 2.7 | 3.1 | -91% |
| Heat pump + Ecospa + Nordic | 1.7 | 2.0 | -94% |
Indicative heating values at a constant ambient temperature of 10°C, water at 36°C and with the cover on. Actual consumption varies with climate, how often the hot tub is opened and the model.
Hot tub energy use: your most common questions
How much electricity does a hot tub use per month?
It mainly depends on the climate, the insulation and the heating system. With a constant outdoor temperature of 10°C, water at 36°C and the cover on, a standard hot tub with an electric heater needs around 30 kWh a day to maintain its temperature (about 900 kWh a month). With Ecospa this drops to 9.3 kWh/day, with Ecospa + Nordic Insulation to 6 kWh/day and, if it also has a heat pump, to 1.7 kWh/day. Use the calculator to see the cost in euros at your tariff.
How much electricity does a hot tub use with the massage jets on?
Each massage pump uses around 1.85 kW and the blower 1.15 kW. With 1 pump + blower that's about 3 kWh per hour of massage: 30 minutes a day for a month comes to around 45 kWh, roughly 11 € at 0.24 €/kWh. With 2 pumps + blower, around 4.85 kWh per hour.
Which uses less: a heat pump or an electric heater?
The heat pump. Under the same conditions as the calculator, it needs 8.6 kWh/day compared with 30 kWh/day for an electric heater in a standard hot tub, 71% less. The colder the climate and the more you use your hot tub, the sooner you'll notice the savings. See hot tubs with a heat pump.
Does a hot tub use more electricity in winter?
Yes. The bigger the difference between the water and air temperature, the more energy it takes to maintain it. That's why the calculator uses a demanding scenario (a constant 10°C): in spring and summer, heating costs are considerably lower. Cold climates are where Nordic insulation and a heat pump make the biggest difference.
Is it better to switch my hot tub off when I'm not using it?
For regular use, it's usually better to keep it at temperature with the cover securely closed than to drain it or let it cool down and reheat it from scratch. If you won't be using it for a few days, you can lower the set temperature by a few degrees. The thermal cover is key: most heat is lost through the water surface.
How can I find out what the model I like will use?
The calculator uses indicative factory data. Tell us which model you're interested in, where you'll install it and how you'll use it, and we'll prepare a personalised, no-obligation estimate. Request your quote or find your nearest dealer.
Enjoy your hot tub all year round, for less
We'll help you choose the model, insulation and heating system that best suit your climate and the way you use it.