# Can you use an inflatable hot tub in winter?

Source: https://bubbleandsoak.co.uk/blog/inflatable-hot-tub-in-winter
Published: 2026-10-12
Publisher: Bubble and Soak

**In short:** Yes, many inflatable hot tubs can be used in winter, but check the manual for the lowest air temperature the maker allows, and choose a tub with freeze protection if it will stay up. Expect the heater to run for much longer, so kWh rise sharply. A thick cover, a floor mat and wind shelter make the biggest difference.

A hot tub on a frosty evening is one of the main reasons people buy one, but a UK winter is tough on an inflatable. The heater is limited to around 2 kW, the air walls lose heat, and frost can damage the pump if water stops moving. Many owners pack their tub away in autumn; others keep it running all year. This guide explains maker temperature limits, freeze protection, how to insulate the tub and the energy it takes, so you can decide what suits you.

## Maker limits and air temperature

Most makers give a lowest air temperature in the manual, below which the tub should not be used or the heater may not keep up. The figure varies by model, so look it up for yours rather than relying on general advice. Some pumps show a low temperature code when water gets close to freezing.

Below that limit, the heater may not be able to replace the heat lost, especially in wind. The water can then cool steadily even with the heater on, and the pump and hoses are at risk if the water freezes.

## Freeze protection

Freeze protection is a mode that switches the heater or pump on automatically when the water gets close to freezing, to stop ice forming in the pump and pipes. Bestway calls it Freeze Shield on its SmartSpa tubs, MSpa lists automatic frost protection on the Denver, and Wave lists antifreeze protection or Freeze Shield on its tubs.

Freeze protection protects the equipment; it does not keep the water at soaking temperature. If the tub will stay up through winter, choose a model that has it. Our [winter guide](https://bubbleandsoak.co.uk/best/best-inflatable-hot-tubs-for-winter) compares the options.

| Tub | Freeze protection |
| --- | --- |
| Bestway Santorini HydroJet Pro | Freeze Shield |
| MSpa Denver | Automatic frost protection |
| Wave Como Eco Foam | Freeze Shield |
| Wave Pacific 6 person | Antifreeze protection |

Freeze protection named in listings

## Keeping the heat in

Insulated walls and foam tubs lose less heat than standard air walls. Bestway's EnergySense models and the Wave Como are examples in our guides.

- Use a thick, insulated cover and strap it down tightly.
- Lay an insulating floor mat under the tub before filling.
- Shelter the tub from wind with a fence or screen, leaving safe clearance.
- Keep the lid off for as short a time as possible.
- Keep the bubbles to short sessions; outside air cools the water.
- Consider a thermal cover upgrade or an insulated tub enclosure designed for your model.

## Energy in kWh through winter

Winter raises energy use in two ways. Tap water is colder, so each refill takes more kWh to heat. And the heater runs for longer to hold temperature. Heating 800 litres from 5 to 38 °C needs at least 30.7 kWh, against 26 kWh from 10 °C. Try your own figures in the [heat-up calculator](https://bubbleandsoak.co.uk/tools/heat-up-calculator).

For holding, multiply heater kW by hours run. A 2.2 kW heater running 12 hours a day uses 26.4 kWh a day. Run times depend so much on the weather and cover that the only reliable figure is your own; app controlled tubs or a plug-in energy monitor rated for the load can help, if the manual allows. See [running costs](https://bubbleandsoak.co.uk/blog/hot-tub-running-costs-uk).

## Keep it running or pack it away?

If you will use the tub often through winter and it has freeze protection and a good cover, keeping it running at a lower holding temperature can make sense. If you will rarely use it, draining, drying and storing it indoors is kinder to the tub and avoids running the heater for weeks. See [how to store an inflatable hot tub](https://bubbleandsoak.co.uk/blog/how-to-store-inflatable-hot-tub).

Never leave a filled tub switched off in freezing weather. Ice can split the pump, hoses and fittings.

Note: In winter, keep the plug and socket dry and protected, check the RCD regularly and never use extension leads unless the manual allows. Ice around the tub is a slip risk; keep paths clear and supervise children.

## Water care in cold weather

Sanitiser lasts longer in cool water with fewer bathers, but test at least twice a week and after use. Keep the filter clean; a clogged filter can stop the heater, which in freezing weather risks ice. Follow the chemical maker's instructions for all products.

[See insulated premium tubs](https://bubbleandsoak.co.uk/best/best-premium-inflatable-hot-tubs)

## Frequently asked questions

**Can an inflatable hot tub freeze?** Yes, if the water stops circulating in freezing weather. Use freeze protection and never leave a filled tub switched off in frost.

**What is the lowest temperature for a Lay-Z-Spa?** It varies by model. Check the manual for your pump.

**Will my hot tub heat up in winter?** Slowly. Cold tap water and heat loss mean longer heating; use a good cover and floor mat.

**Is it worth keeping the tub up in winter?** If you use it often and it has freeze protection, it can be. Otherwise storing it is usually better.

## Buying guides on this topic

- https://bubbleandsoak.co.uk/best/best-inflatable-hot-tubs-for-winter
- https://bubbleandsoak.co.uk/best/best-premium-inflatable-hot-tubs
- https://bubbleandsoak.co.uk/best/best-inflatable-hot-tubs