Should I Leave My Hot Tub on All the Time?

As a first-time hot tub owner, you undoubtedly have many questions, and you are not alone! While most people know how to use a hot tub, very few understand what owning a hot tub entails.

Among the questions most frequently asked by new hot tub owners is should I leave my hot tub on all the time.

You certainly should leave your hot tub on all the time as they are designed to be used like that. Most good hot tubs have significant insulation, which, together with a thick cover, means that heat loss will be minimal so electricity use kept to a minimum to maintain the temperature.

Actually, although your hot tub may be an all the time it doesn’t mean it is constantly using energy in the form of electricity. Hot tubs only use electricity when the temperature drops and as they have such good insulation they maintain the temperature well. There are a few exceptions of course which I explain in the rest of the article.

Should I Leave My Hot Tub on All the Time?

Why leave your hot tub on all the time?

It’s practical

The average six-person hot tub can hold anywhere from three hundred and twenty gallons of water to five hundred gallons of water. That is a lot of H2O!

The first time that you heat your hot tub, you can expect it to take around twenty hours for the water to heat up, depending on how cold your faucet water is.

Now, imagine if you had to heat your hot tub every time you wanted to use it. You’d have to wait almost a whole day for the water to heat up from cold each time. Even if the water is still warm, you are looking at waiting four to six hours for the water to heat up to the right temperature again!

What good is a hot tub if you can’t use it on the spur of the moment when you want to?

It’s more affordable

Another reason why you should leave your hot tub running all of the time is that it’s more affordable!

If you have to heat your hot tub from cold each time you want to soak, it means having to keep the heater running on overdrive until the water reaches temperature. You can imagine how expensive in electricity that would be.

How is keeping your hot tub running more affordable?

Manufacturers build high-quality hot tubs with numerous insulating features to keep the water warm. These features in hot tubs are designed to reduce the amount of energy needed to keep the hot tub heated, so keeping it on is much more affordable.

Top-quality hot tubs also have high-quality heaters that are more efficient than those in other hot tubs. So, even when the heater does come on, it requires much less energy to heat your hot tub water!

These features mean that when you want to use it and soak in your hot tub, the most you will have to do is turn the temperature up a few degrees – which is much more cost-efficient!

Personally, I keep the water in my hot tub running 24/7 every month of the year and keep the water temperature I prefer it to be at to hop straight in whenever I feel like it as that is the way hot tubs are designed to be used. I have left my hot tub running for many years now without any problems. If you like using your hot tub in a similar way too then I suggest you do the same.

Is it safe to leave your hot tub on all the time?

When most new hot tub owners find out that you should keep your hot tub running all the time, their next question is whether or not it is safe to do so.

Again, the answer is yes, it is perfectly safe to keep your hot tub running all the time.

Manufacturers know that their hot tubs are running all the time, and they test each of their products with that regular use in mind.

There are also safety specifications that a hot tub must meet before it can be certified as safe.

Hot Tub Maintenance Course

I bought this course some months after I bought my first hot tub and was struggling with maintaining it. It was money very well spent and it has paid for itself many times over the years.

Should I Leave My Hot Tub on All the Time? 1

When should you turn off your hot tub?

When should you turn off your hot tub?

Just because you should not turn your hot tub off after each use does not mean that you should never turn it off.

Every three months for cleaning

If your hot tub is not in a rental or vacation property, plan on turning it off and draining it every three months or so. Even if you use it year-round, you should drain, clean, and refill your hot tub periodically to keep it sanitary. Actually, perhaps the correct answer to should I leave my hot tub on all the time should be yes, except when you clean it.

You can vary this depending on the use it gets. For example, although my hot tub is on year-round, it gets much less use in the summer than in the winter. So I empty and clean it less often during this period which may just be once in the 6 month summer period. Provided the water chemistry is ok then it isn’t a problem.

When it’s not being used

You also want to be sure to turn off your hot tub if you don’t plan on using it for a while.

For example, if you don’t use your hot tub in the middle of summer, you can turn it off, drain it, and clean it for the season. Then when you’re ready to put the tub back in use, do a quick clean and refill, and you’re ready to start heating the tub again!

Can I leave my hot tub empty in summer?

If you don’t plan to use your hot tub during the summer then you can certainly empty it and leave it quite happily. This will save money by not using electricity and means you will not need to do any maintenance. For safety sake you should disconnect the hot tub from the power by physically disconnecting it or throwing the trip/fuse.

Can I leave my hot tub empty in winter?

If you do not want to use your hot tub during the winter then you can certainly empty it. However. if the temperatures will drop below freezing point you must ensure that it has been emptied completely, including from the internal pipework otherwise the pipes may freeze and split.

For safety sake you should disconnect the hot tub from the power by physically disconnecting it or throwing the trip/fuse.

Vacation rentals

If your hot tub is in a vacation property or rental property, you are going to need to drain and clean your tub much more frequently. It’s common practice for vacation homeowners to drain and clean their hot tub once each guest checks out. Such regular draining helps to prevent any sanitation problems for new guests in your property.

Although it’s common practice, it’s not always possible to drain and reheat your hot tub between guests, particularly if you are in peak vacation season and need to do a same-day turnaround.

If you find yourself in this circumstance, it is acceptable to check the water quality and do a partial drain and refill plus a chemical shock treatment if chemical levels are off.


Should I turn my hot tub down when not in use?

If you know that you will not be using your hot tub for a few weeks, perhaps when going on vacation, then it may be worthwhile lowering the temperature a few degrees. Certainly, this is a better idea than turning it off completely as then the contents will just become stagnant.

Does turning down hot tub save money?

It will certainly save you money if you lower the temperature of your hot tub water but you should consider that it will not be available to use at a moment’s notice (which is how I tend to use mine) as it will need time to heat up to your preferred temperature.

Do hot tubs turn on automatically?

Hot tub pumps come on when it is time for a scheduled filter cycle or if the water temperature drops sufficiently for the heater to switch on. You do not have to control it

Does a hot tub use a lot of electricity?

Naturally, it does use energy to heat and run a hot tub. But due to the energy efficiency of most modern hot tubs, in the form of insulation and good quality heaters, they do not use as much electricity as you may imagine.

Does leaving a hot tub on all the time wear it out faster?

It makes little difference to the lifespan of a spa if you keep your hot tub on all the time. Hot tubs are designed with this in mind by the manufacturers.

Should I leave my Lay Z Spa on all the time?

You can treat a LayZ Spa in the same way as you would treat any hot tub so keeping it on all the time should not cause a problem.