Are hot tubs expensive to run?

Running a hot tub can be surprisingly inexpensive, especially if you get a new, energy-efficient hot tub model. The cost of operating a well-insulated hot tub can range from £1 to £4 per day, and according to some estimates, the average monthly operating cost of an A6 hot tub is between £30 and £55. The size of the hot tub, the quality of the insulation, and how often it is used all have a big influence on operating expenses.

Factors Affecting Operating Costs

There are numerous factors to running a hot tub in the UK.

Factors Affecting Operating Costs:

• Insulation: By retaining heat and having a thick cover, a well-insulated hot tub lowers energy usage.
• Pump Efficiency: To maintain water cleanliness, some hot tubs utilise energy-efficient pumps that operate for only a few hours a day.
• Size: Heating and maintaining the temperature of larger hot tubs typically requires more energy.
• Frequency of Use: Operating expenses will inevitably rise with increased usage.
• Water Temperature: Maintaining a higher water temperature requires more energy.

How to Lower the Cost of Running Your Hot Tub (Without Sacrificing the Soak)

Owning a hot tub is a luxury, but that doesn’t mean your energy bills need to take a hit. Here are some clever tips to help you enjoy your tub while keeping running costs in check:

• Invest in a High-Quality Thermal Cover
  A well-insulated cover prevents heat from escaping, especially during cold UK nights. The less heat you lose, the less energy your tub uses to stay warm.
• Drop the Temperature a Few Degrees
  Lowering your set temperature from 40°C to 37°C can significantly reduce energy use, without taking the comfort out of your soak.
• Use a Hot Tub Timer or Smart Plug
  Schedule heating and filtration cycles during off-peak energy hours (if you’re on a time-of-use tariff) to take advantage of cheaper electricity rates.
• Keep the Filters Clean
  Dirty filters force your pump to work harder. Regular cleaning enhances water flow and reduces strain on the system, thereby saving energy and extending the lifespan of your components.
• Add Windbreaks or a Shelter
  In windy or exposed gardens, heat loss occurs more quickly. A simple windbreak, pergola, or insulated gazebo can dramatically improve heat retention.
• Switch to Energy-Efficient Modes
  Many modern tubs have eco or economy settings—these reduce heating cycles or adjust them based on usage patterns.
• Consider a Hot Tub Heat Pump
  Heat pumps are significantly more efficient than standard electric heaters and can substantially reduce your heating costs over time, especially in cooler climates like the UK.
• Monitor Usage
  Using your hot tub every day can spike your bill. Try setting ‘hot tub nights’ a few times a week instead of daily use to balance relaxation and budget.

We recommend you try these tips to lower the cost of running your hot tub.

Final Thoughts

Running a hot tub doesn’t have to mean soaring energy bills. With a few clever tweaks—from better insulation to efficient heating practices—you can enjoy all the relaxation without the financial stress. Whether you’re a new hot tub owner or looking to optimise your current setup, these tips can make a real difference, primarily through the UK’s changing seasons.

At Aquasolus, we’re passionate about helping you get the most from your hot tub experience, comfortably and cost-effectively. Are you looking for expert advice or energy-efficient accessories? Get in touch with our team today and let’s make your soak smarter.