hot tub running costs

How Much Does It Cost to Run a Hot Tub in the UK? (2025 Guide)

Hot Tub Running Costs is the number one question most will ask before getting a hot tub. Hot tubs are a dream for relaxation, but understanding their running costs is key — especially with UK energy prices these days. This guide breaks it down clearly, so you’ll know exactly what to expect.

What Determines a Hot Tub’s Running Costs?

Before we talk numbers, it’s important to know what affects how much you’ll pay each month. Several factors come into play:

  • Type of hot tub – Inflatable tubs tend to cost more to run per day than well-insulated hard-shell tubs. Premium energy-efficient models can save you quite a bit.
  • Energy prices – Your electricity tariff makes a big difference. UK households currently pay around 28p per kWh on average.
  • Usage frequency – Daily use costs more than weekend-only dips.
  • Insulation and cover quality – A good cover prevents heat loss, saving energy.
  • Location and climate – Outdoor tubs in winter use more energy to maintain temperature than indoor or sheltered tubs.

Typical Hot Tub Running Costs in the UK

Here’s a estimate breakdown of daily, monthly, and yearly running costs for different types of tubs:

Hot Tub Type Daily Cost Monthly (30 days) Yearly (12 months)
Inflatable £1.50–£2.50 £45–£75 £540–£900
Hard-shell £1.00–£1.75 £30–£52.50 £360–£630
Energy-efficient £0.80–£1.20 £24–£36 £288–£432

💡 Tip: These estimates assume regular use (a few times a week) and standard maintenance.


Extra Costs to Keep in Mind

Running costs aren’t just electricity. To keep your hot tub in tip-top condition, you’ll also need to budget for:

  • Chemicals – £10–£20 per month to balance water properly.
  • Filter replacements – £30–£50 a year, depending on brand and usage.
  • Servicing / maintenance – Optional professional check-ups can cost £100–£200 a year.
  • Water refills – Usually minor, around £10–£20 annually, depending on local water prices.

How to Reduce Hot Tub Running Costs

You don’t need to break the bank to enjoy your tub. Here’s how to save money:

  • Invest in a good insulated cover – Reduces heat loss significantly.
  • Lower the temperature when not in use – Even a small reduction can cut costs.
  • Use the tub during off-peak hours – If you’re on a time-of-use tariff, this can save you money.
  • Keep filters clean and replace as needed – Efficient filtration uses less energy.
  • Consider a thermal blanket for extra insulation – Helps reduce evaporation and heat loss.

Is a Hot Tub Worth the Running Costs?

Hot tubs don’t have to be expensive to maintain if you plan properly. For many, the running cost is comparable to a monthly streaming subscription or a couple of takeaways.

Beyond the numbers, think about the relaxation, stress relief, and social enjoyment it brings, sometimes the health benefits alone justify the expense.


Final Thoughts

If you’re planning to buy a hot tub or already own one, understanding running costs is crucial. With proper maintenance, insulation, and smart usage, you can enjoy your hot tub without worrying about skyrocketing electricity bills.