Is a whirlpool tub an energy guzzler? Tips on energy efficiency

A hot tub is a wonderful way to relax after a long day and turn your home into a wellness oasis. But many people wonder: "Is a hot tub an energy guzzler?" The answer is: "It depends." With proper use and a few smart measures, you can significantly reduce energy consumption. In this guide, you will learn how to use a hot tub energy-efficiently.

How much electricity does a hot tub use?

The energy consumption of a hot tub depends on several factors:

Heater: The heater is the largest energy consumer. It needs to heat the water and maintain the temperature.
Pump: The pump that moves the water through the jets also consumes electricity.
Insulation: A well-insulated hot tub loses less heat and saves energy.
Usage duration: The longer the hot tub is in use, the higher the energy consumption.
Outdoor temperature: In cold months, the heater has to work harder to maintain the water temperature.

Example calculation:

A hot tub with a heating power of 3 kW and a pump of 1.5 kW, used for 2 hours a day, consumes approximately:

Heater: 3 kW x 2 h = 6 kWh
Pump: 1.5 kW x 2 h = 3 kWh
Total: 9 kWh per day

With an electricity price of 0.29 CHF/kWh, this corresponds to about 2.61 CHF per day or 78.30 CHF per month or 972 CHF per year.

Tips to reduce energy consumption

Choose good insulation: When buying, look for a well-insulated model. High-quality insulation prevents heat loss and reduces the energy demand of the heater.
Use a cover: Always use a suitable cover when the hot tub is not in use. A cover prevents heat from escaping and reduces energy consumption by up to 50%.
Adjust the temperature: Lower the water temperature when the hot tub is not in use. A temperature of 30–35 °C is usually sufficient and saves energy compared to higher temperatures.
Use modern technology: Invest in a hot tub with an energy-efficient heater and pump. Modern models are often equipped with energy-saving technologies.
Timed usage: Turn on the heater and pump only when you use the hot tub. A timer allows you to control the operation automatically.
Choose the location: Place the hot tub in a wind-protected spot to minimize heat loss. In cold regions, a canopy or windproof screen can help.
Regular maintenance: Clean the filter regularly and ensure the equipment operates smoothly. A well-maintained hot tub works more efficiently.

Conclusion: A hot tub doesn't have to be an energy guzzler

A hot tub can consume a lot of electricity, but with the right measures, energy consumption can be significantly reduced. Invest in a well-insulated, energy-efficient model, use a cover, and adjust the temperature and usage duration. This way, you can enjoy the benefits of your hot tub without fearing high electricity costs.

We would be happy to advise you on-site in our showroom in Rotkreuz and present our energy-efficient hot tubs from Hydropool.