LAY-Z-SPA RUNNING COSTS
A Lay-Z-Spa typically costs £1-£3 per day, £9-£20 per week, and £30-£80 per month to run in the UK, depending on usage, the season, type and size of hot tub and whether using a thermal cover or not.
You won't find other portable hot tub brands displaying running costs on their websites... We're happy to show you because we know (and they know) our running costs are lower due to our hot tubs being more energy efficient.
How Much Does It Cost To Run a Lay‑Z‑Spa?
A Lay-Z-Spa costs, on average, £1-£2 a day. Enjoying a Lay‑Z‑Spa at the weekend only, including heating up from cold, can actually cost you less than a takeaway or a trip to the cinema for two people.
What affects Lay-Z-Spa running costs?
No two Lay‑Z‑Spa users are the same and many factors can affect the running costs
- Outside temperature
- Frequency of use
- Water temperature setting
- Size/water capacity of the hot tub
- Insulation (thermal cover, mat, location)
- Energy tariff
Helping you reduce hot tub running costs
We are continuously developing our products and technology to be more energy‑efficient, expanding our range of energy-efficient hot tubs and help you reduce hot tub running costs as much as we can.
For example, all Lay‑Z‑Spa hot tubs come as standard with a range of energy-saving features that you won't find on other inflatable hot tubs and our blog is a great source of advice for using your Lay‑Z‑Spa and saving on your hot tub running costs.
Lay-Z-Spa Running Costs
Lay-Z-Spa hot tub running costs from 1st March - 30th June 2026, based on a 24.67 pence tariff
| Weekend Usage | Full Week Usage | |
| ☀️Average Summer Temperature Regular Inflatable Lay-Z-Spa |
£8.30 | £15.34 |
|
☀️Average Summer Temperature with EnergySense® or using a Thermal Cover |
£6.11 | £9.33 |
| ☀️Average Summer Temperature Thermacore™ Hot tubs* |
£4.98 | £9.20 |
| ❄️Average Winter Temperature Regular Inflatable Lay-Z-Spa |
£12.36 | £20.31 |
|
❄️Average Winter Temperature with EnergySense® or using a Thermal Cover |
£8.67 | £12.89 |
| ❄️Average Winter Temperature Thermacore™ Hot tubs* |
£7.41 | £12.18 |
Approximate figures based on a Miami AirJet™ (669 litres) with an January-March UK tariff of 24.67 pence p/khw. Includes heating up to 40°C and using the AirJets for 1.5 hours. All tests conducted in the same location with a floor mat on decking, against a low wooden fence with the same volume of water, the same operating times and the filter running constantly.
- Weekend usage = Heating to 40°C on Friday, using the AirJets for 45 mins on Saturday & 45 mins on Sunday and turning off the heat after use on the Sunday.
- Full Week usage = Heating to 40°C on Monday, using the AirJets for 30 mins on Wednesday, 30 mins on Friday & 30 mins on Saturday. Please note – if kept running, the initial heat‑up cost will only happen once and the following weeks will be cheaper.
Up to 40% energy reductions can be made using a Lay-Z-Spa thermal cover and further tips to reduce Lay-Z-Spa running costs can be found here.
*ThermaCore™ running costs are an approximation based on an average 40% better efficiency than a Lay-Z-Spa without insulation
Lay-Z-Spa hot tubs running costs FAQs
How much does a Lay-Z-Spa cost to run per day in the UK?
A Lay-Z-Spa typically costs £1-£3 per day, depending on varying circumstances.
A ThermaCore hot tub™, such as the Toronto, in a sheltered position, with a thermal cover can easily maintain heat at a running cost of £0.50 per day. A Miami AirJet™ in the open, in colder weather is more like to be £2-3 per day.
Is it cheaper to leave a Lay-Z-Spa on all the time?
If you use your Lay-Z-Spa often, say 3 or more times a week on different days, it is considerably more cost-effective to keep the heater set to one temperature. Dropping the temperature or letting the water cool and turning it up again will actually consume more energy than keeping it at a steady temperature. And, most importantly, you can get it any time you like without having to wait
Is a Lay-Z-Spa cheaper than a hard shell hot tub to run?
This can depend on the type of Lay-Z-Spa and the type of hard-shell hot tub
Some entry to mid-level acrylic hot tubs don't have insulation or energy-saving features, resulting in a running cost of £5 per day on average.
Lay-Z-Spa ThermaCore™ and EnergySense® hot tubs benefit from pioneering insulation that brings running costs down to much lower than this.
How can I reduce Lay-Z-Spa running costs?
There are many easy and simple tricks to reducing Lay-Z-Spa running costs. Read more in this blog.
What about the more energy-efficient Lay-Z-Spa hot tubs?
EnergySense® inflatable hot tub running costs?
With fully integrated thermal insulation inside the liner and the top cover, these hot tubs are, as standard, up to 58% more energy efficient than a standard inflatable hot tub.
What are the running costs? See the chart above, costs "Using a Thermal Cover" are equivalent to an EnergySense® hot tub without a thermal cover.
How to reduce EnergySense® inflatable hot tub running costs
If you use a Lay-Z-Spa thermal cover with your EnergySense® hot tub, it is possible to achieve well over 60% better energy-efficiency that a standard inflatable hot tub.
ThermaCore™ rigid foam hot tub running costs?
Foam wall ThermaCore™ hot tubs are 63% more energy-efficient than a regular PVC inflatable hot tub.
What are the running costs? Above is an approximate cost for our foam hot tubs. based on a 40% energy reduction.
How to reduce ThermaCore™ rigid foam hot tub running costs
If you add a Lay-Z-Spa thermal cover to your ThermaCore™ foam hot tub, you could achieve up to a further 20% making it up to 80% more energy efficient than an inflatable hot tub.
10 Ways To Reduce Hot Tub Running Costs
From choosing the right place to position your hot tub, to cleaning your hot tub’s filters regularly, we’ve put together 10 simple ways to manage your hot tub running costs.
READ MOREEnergy-efficiency testing results
Lay‑Z‑Spa Vs other brands' inflatable hot tubs
Lay-Z-Spa
Heating time (20°C-39°C)
8.5 Hours
Energy Used
17.25 KWh
Cooling Speed (39°C-30°C)
0.28°C / hour
Other brand 1
Heating time (20°C-39°C)
9.25 Hours
Energy Used
17.45 KWh
Cooling Speed (39°C-30°C)
0.33°C / hour
Other brand 2
Heating time (20°C-39°C)
8.75 Hours
Energy Used
17.30 KWh
Cooling Speed (39°C-30°C)
0.39°C / hour
Other brand 3
Heating time (20°C-39°C)
13.5 Hours
Energy Used
18.7 KWh
Cooling Speed (39°C-30°C)0
0.39°C / hour
Heating time (20°C-39°C)
8.5 Hours
Energy Used
17.25 KWh
Cooling Speed (39°C-30°C)
0.28°C / hour
Heating time (20°C-39°C)
9.25 Hours
Energy Used
17.45 KWh
Cooling Speed (39°C-30°C)
0.33°C / hour
Heating time (20°C-39°C)
8.75 Hours
Energy Used
17.30 KWh
Cooling Speed (39°C-30°C)
0.39°C / hour
Heating time (20°C-39°C)
13.5 Hours
Energy Used
18.7 KWh
Cooling Speed (39°C-30°C)0
0.39°C / hour