Energy-Efficient Hot Tubs: Running Costs & Money Saving Tips

22nd September 2022

How energy efficient is your hot tub? How can you save money on your energy bills by changing how you use your hot tub?

These are just a few of the questions people ask when they are considering buying a hot tub. And this is completely understandable – at the time of writing, energy bills are soaring across the UK and people want to make sure they are doing what they can to reduce costs.

The fact is, a hot tub may cost you less in energy bills than you realise.

In this guide we will look at some of the key factors to consider when choosing a hot tub to find a more energy-efficient model.

We’ll also provide tips on steps you can take to make your hot tub use energy more efficiently, no matter which model you choose.

Hot tub running at night time

Choose an Energy-Efficient Hot Tub Model

One of the most effective ways to save energy on your hot tub usage is to choose an energy-efficient model. An energy-efficient model can save you energy every single day of the year compared to a less energy-efficient model.

Want to find the best energy-efficient hot tub in the UK? Then take a look at our models. Our hot tubs are some of the most efficient in the world. In fact, they are ranked in the top three hot tub brands in the world when it comes to energy efficiency and standby wattage.

Our Energy-Efficient Hot Tubs Offer Many Health Benefits

Call HPS on 01932 640 144 today or Book an Appointment

But what makes our hot tubs energy efficient?

Self-Clean Technology

Hydropool Self-Cleaning Hot Tubs are incredibly energy efficient. These hot tubs filter 100% of the water over every 15-minute period, meaning they filter the water far quicker than other hot tubs, reducing the need to refill the hot tub.

High-Quality Insulation 

Our hot tubs use an insulated thermal shield blanket using technology inspired by NASA. The Triple Thermal shield technology on the floor, cabinet and pipes, and aluminium foil side that reflects heat back inside, ensure high-quality insulation that keeps the heat in. 

Hydrowise Heat Shield Hardcover

Our hot tubs are made to put up with anything the winter can throw at them. The Hydrowise Heat Shield Hardcover locks the heat in and keeps the cold out.

Low Energy Pumps

The pumps used in our hot tubs have a low amperage to increase energy efficiency. The pumps produce high flow rates but without a high energy output.

How Much Does Running a Hot Tub Cost? 

You may think that a hot tub uses a lot of electricity, but most hot tubs don’t present a huge cost in terms of energy – especially when you have an energy-efficient model like one of the Hydropool hot tubs.

Man exercising and woman watching in hot tub

Remember, our hot tubs are some of the most energy efficient in the world, and hot tubs from other manufacturers can cost more to run.

In terms of how expensive our hot tubs are to run, our hot tubs cost about £1 to £2 per day on average. So if you are looking for the most energy-efficient hot tub in the UK, start with Hydropool.

Some of the factors that affect hot tub running costs include:

Hot Tub Size 

It makes sense that a larger hot tub will use more energy than a smaller model. Larger hot tubs have to heat a larger volume of water, and they usually have more pumps, which use additional energy.

How Often You Use It

If you use a hot tub every day or multiple times a day, it will use more energy than if you only use it at the weekends or once a week.

Ambient Temperature 

A hot tub will use more power to heat up on a cold day in the middle of winter compared to a hot summer’s day.


Some hot tubs need to be refilled more frequently, and heating up the water from a cold temperature more often will use up more energy. Self-cleaning hot tubs don’t need to be refilled regularly, saving more energy.

The efficiency of the pumps is also a factor. Some hot tubs have pumps that run all day, but Hydropool pumps are more efficient and only run for between six and eight hours a day to keep the water clean.

Hot tub pumps cleaning water

Hot Tub Insulation

A well-insulated hot tub will use less energy. The heat is preserved, and the insulation at the shell’s base and around the plumbing is also important.

Hydropool hot tubs have two layers of insulation and they are much more efficient compared to hot tubs with single layers of insulation. 

Your Energy Tariff 

Finally, your energy tariff will have an impact on the cost of running your hot tub. You may want to use a price comparison website to find out if you can get a cheaper tariff.

How to Run a Hot Tub More Efficiently

Hydropool is one of the most energy-efficient hot tub brands in the world. But whichever hot tub you decide to get, there are tips that can help you to save money by running your hot tub more efficiently.

Use a Hot Tub Cover

Get a thermal cover for your hot tub. Some hot tubs come with these included, but you may want to buy one separately.

The cover should fit tightly to insulate the water and prevent heat from escaping. This reduces heat loss and keeps the water warmer, using less energy to heat up the hot tub when you want to use it. 

Change the Water Less Frequently 

It is much more efficient to keep the water at a warm temperature than to heat it up from a cold temperature. The more often you refill your hot tub, the more energy it will use to heat up the water. 

Many hot tubs have to be changed four times a year or more, which uses more energy. With Hydropool Self-Cleaning Hot Tubs, on the other hand, the water is cleaned once every 15 minutes, so you only need to refill it twice a year. 

Choose a Better Position

The position of your hot tub can also affect the amount of energy it uses. You want to protect it from the wind, so position the hot tub somewhere it is protected to prevent the wind from cooling down your hot tub.

Luxury hot tub installed in a garden

Another alternative is to install a windbreak. This could consist of a fence or wall, but you could also use a hedge or trees. An additional benefit is that it adds privacy.

Keep the Temperature Consistent

Try to maintain a consistent water temperature rather than turning it down when you are not using it and then turning it up again.

You may think that turning it down is better, but when you have to turn the temperature back up again, it is not efficient. The added benefit is that you can use it whenever you want to, making it more convenient.

Use a Lower Temperature

Another option is to turn down the temperature of your hot tub. Every degree lower saves money, and this might be more of an option during the hotter months of the year. 

You may even find that you like the water a bit cooler, but it comes down to personal preference. Try it at a lower temperature and see if you like it.

Turn Off the Extra Features

Many hot tubs, including Hydropool models, come with extras like pumps, massage systems and LED lights. These all need energy to run.

On some models, when the air pumps are working, they can cool the water down, so the hot tub uses more energy to keep the temperature at the desired level.

Of course, these make using your hot tub even more enjoyable, but occasionally you might turn them off. Or you may want to turn them on for a few minutes and then simply enjoy soaking in warm water.

Whatever you decide, always turn them off when you are not using the hot tub to save energy. 

Keep It in Good Condition

It’s important to keep your hot tub in excellent condition. Problems with the insulation, cracks and leaks can all affect its efficiency. If something goes wrong, get it fixed as soon as you notice. Remember, we have a comprehensive warranty in place for our products at Hydropool Surrey. 

Keep the filters clean as well. Filters that are dirty get clogged up and the pump needs to work even harder. Replace filters when you need to to ensure a more energy-efficient operation.

Our Energy-Efficient Hot Tubs Offer Many Health Benefits

Call HPS on 01932 640 144 today or Book an Appointment

Save Money with Energy-Efficient Hot Tubs 

Hot tubs are great fun. They help you relax, they are fun to use on your own or with others, and they are perfect for anyone who wants to enjoy a bit of luxury at home.

You may be worried about the cost of running your hot tub. But when it comes to energy-saving hot tubs, Hydropool is up there with the best. 

Pile of bronze coins

By choosing an energy-efficient model like one of our hot tubs and following the above tips when you use it, you can easily cut down on the amount of energy it uses.