What Does It Cost To Run A Hot Tub?

By Adam


If you’re thinking of buying a hot tub then you’ll need to be prepared for the fact that the maintenance and electricity consumption will increase your monthly costs.

However, the cost of running a hot tub will depend on the size of the hot tub, how frequently you use it, the frequency of water replacement, and what chemicals your hot tub needs. 

The more frequently you use your hot tub the higher your electricity bill will be, if your hot tub has other functions like bubbles and cool lighting then this will boost the energy consumption even higher.

Turning your hot tub off after every time you use it will cost more than keeping your hot tub on all the time to maintain the temperature of it.

As an estimate, the energy costs of having a hot tub could begin from around $30 a month depending on how frequently you use it and what functions your hot tub has.

The chemicals you’ll need to buy to maintain the cleanliness of the water in your hot tub could set you back nearly $500 depending on how often you use it and how often it’ll need replenishing. 

Do hot tubs cost more in winter?

Yes, if you don’t take the correct precautions a hot tub can certainly cost you more to run in the winter.

As the temperature is a lot colder in the wintertime, you are more likely to ramp the temperature up on the hot which results in more energy to be used and hence boosting the costs. 

To try to keep these costs down, when your hot tub is not in used, you should try to turn the temperature down a few degrees to reduce the costs as much as possible, but do not turn off the hot tub completely as it’ll take a lot of energy to get the water temperature back to the optimum level. 

What does it cost to run a hot tub

If you’re going to keep your hot tub on when it’s not in use, then make sure to invest in a high-quality hot tub cover to retain the heat when it's not being used and reduce your energy costs.

You can also invest in a hot tub blanket that sits on the water in the hot tub and acts as an insulator.

If you experience strong winds in the winter, then getting a windbreak for your hot tub will prevent the cold winds from cooling down your hot tub and therefore your hot tub heater won’t have to work as hard to maintain the correct temperature.  

How much does it cost to run a hot tub daily?

Most modern hot tub manufacturers construct and design their hot tubs to be as energy-saving as possible, with some companies claiming that running their hot tubs can cost them as little as $1 a day.

However, this daily running cost will depend on the size of your hot tub, the bigger the hot tub, the more water it requires, and also the more energy it’ll take to warm up that volume of water to the optimum temperature. 

The daily costs of running your hot tub will change with the season, it’ll cost more to run your hot tub in the winter as the outdoor temperature and winds can decrease the water temperature of the water if the hot tub isn’t insulated properly with a cover. 

Is it expensive to heat a hot tub?

Yes, if you have a large hot tub and leave it running at high temperatures all day every day then the cost of heating your hot tub will be high.

However, if you lower your hot tub temperature by a few degrees when it's not in use then your costs will be lower.

It is not an economical approach to turn off your hot tub when it's not in use because it takes a lot more energy to reheat the entire hot tub again. 

Having a good cover to insulate the water inside of your hot tub will keep costs down, however, the primary factor will be the size of your hot tub, how often you use it, and also the energy tariff that you use. 

Is it cheaper to leave a hot tub on all the time?

Yes, it is cheaper to leave your hot tub on all the time instead of turning it off and on when you need it.

It only takes a small amount of electricity to maintain the temperature of the water in your hot tub when it's reached the optimum temperature. 

Having a hot tub during the summer months may cost you less because the temperature of the air will not reduce the temperature inside the hot tub so the heater will not have to work as hard.

In the winter months, you should ensure you keep your hot tub on all the time if you do intend to use it from time to time and invest in an insulating hot tub cover to keep the water temperature high. 

If you turn your hot tub off in the winter then you should completely drain it of any water, otherwise, you run the risk of the water inside freezing and damaging the interior, filters, and piping of the hot tub, which will cost you a lot to repair, if it can even be repaired. 

What is the most economical way to run a hot tub?

The most economical way to run a hot tub is by leaving it on all the time but when it’s not in use, you could lower the temperature by as much as 10 degrees to reduce your energy costs, lowering your hot tub by a degree will save you around 10% off your electricity bill.

Make sure you have an insulated cover for your hot tub and it’s secured on top of the unit when it’s not in use to keep the water inside at an optimum temperature, this will save you from having to heat it back up every time you use it.