How Much Does It Cost to Run a Hot Tub in the UK? (2026 Guide)

by Xavier Labelle

How Much Does It Cost to Run a Hot Tub in the UK?

If you're considering buying a hot tub, one of the first questions you'll ask is: how much does it cost to run a hot tub? Running costs are a crucial factor that many buyers overlook, yet they can significantly impact the true long-term cost of ownership. In this guide, we break down everything you need to know about hot tub running costs in the UK for 2026.

What Affects Hot Tub Running Costs?

Several factors influence how much your hot tub will cost to run each month:

  • Hot tub size and capacity – larger tubs with more water require more energy to heat and maintain temperature.
  • Insulation quality – a well-insulated hot tub retains heat far more efficiently, dramatically cutting electricity bills.
  • Usage frequency – the more you use your tub and the more you open the cover, the more energy is needed to reheat the water.
  • Electricity tariff – UK energy prices vary by supplier and tariff. Using off-peak electricity (e.g. Economy 7) can reduce costs.
  • Ambient temperature – in winter, your hot tub works harder to maintain temperature, so running costs rise seasonally.
  • Hot tub age and efficiency – older models are often less energy-efficient than newer, purpose-built energy-saving spas.

Average Hot Tub Running Costs in the UK (2026)

Based on the current average UK electricity rate of approximately 24p per kWh, here is a realistic estimate of monthly running costs:

  • Budget / entry-level hot tub: £50–£80 per month
  • Mid-range hot tub: £30–£60 per month
  • Premium / well-insulated hot tub: £20–£40 per month

Well-insulated, energy-efficient hot tubs from quality manufacturers can cost as little as £1 per day to run – making them surprisingly affordable when spread across daily use.

13 Amp vs 32 Amp Hot Tubs – Which Costs More to Run?

This is one of the most common questions we receive at The Hot Tub Club. The short answer is: 13 amp (plug-and-play) hot tubs generally cost more to run than 32 amp models, despite having a lower purchase price.

32 amp hot tubs are designed with superior insulation, more powerful pumps, and better heating systems that maintain temperature more efficiently. Although they require a dedicated electrical supply to be installed by a qualified electrician, their day-to-day running costs are considerably lower.

Hot Tub Running Cost Tips: How to Save Money

Here are our top tips for keeping hot tub running costs as low as possible:

  1. Keep the cover on – up to 60% of heat is lost through the surface. A well-fitted, lockable insulated cover is essential.
  2. Use a thermal blanket – a floating foam blanket provides an extra layer of insulation beneath the main cover.
  3. Set an economy temperature – when not in use for several days, reduce the temperature by 5–10°C rather than switching it off entirely.
  4. Use off-peak electricity – schedule heating cycles during cheaper overnight tariff periods if your supplier offers this.
  5. Service your hot tub regularly – a well-maintained hot tub runs more efficiently. Dirty filters force the pump to work harder, using more electricity.
  6. Choose an energy-efficient model – when buying, look for full-foam insulation and a proven track record of low running costs from the manufacturer.

Hot Tub Running Costs vs. Benefits

It's worth putting running costs in perspective. A quality hot tub used regularly delivers genuine health and wellbeing benefits including improved sleep, reduced muscle tension, stress relief, and enhanced social wellbeing. At an average of £1–£2 per day for a well-insulated model, this compares favourably to a daily coffee, gym membership, or spa day.

Find Your Ideal Hot Tub at The Hot Tub Club

At The Hot Tub Club, we connect hot tub buyers with the UK's best showrooms and most trusted brands. Whether you're looking for an energy-efficient family spa or a compact two-seater, our free buyer's guide helps you find the right hot tub for your budget and lifestyle.

Ready to find the perfect hot tub? Get your free copy of The Hot Tub Club buyer's guide today and start your journey to owning the perfect home spa.

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