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How expensive is a hot tub? We found out

Hot Tub Running Costs

Owning a hot tub can be expensive. We are not just talking about the initial purchase of the hot tub here. We are talking about the ongoing costs of ensuring that your hot tub remains an amazing place for you to kick back and relax in. On this page, we are going to look at some of the hot tub running costs, as well as provide a bit of information on how you can keep them to the absolute minimum.

Before we go any further into talking about hot tub running costs, we do want to point out that the information that you find on this page involves estimated costs. Each and every hot tub is different. The way in which you use your hot tub will also have a massive impact on how much it costs to run e.g. the more you are using the tub, the more chemicals you will need to ensure that the water is kept nice and clean.

Electricity Costs

Generally speaking, the electricity costs for your hot tub will be somewhere in the region of $1 to $2 per day. Some people may see costs that are well in excess of this, but we find that the $1 to $2 per day is a good starting point. If you are seeing costs higher than this, then it would indicate that there are a few things that you can do to bring the cost of the electricity down. More on that in a short while.


Unless your hot tub is being used 24/7, we would estimate that the cost of the chemicals for your hot tub will sit at around $200 per year. This is assuming that you spend your money on quality chemicals. Sure, you can buy cheaper products, but we find that the cost of them starts to add up really quickly. They are nowhere near as efficient at keeping the water in your hot tub nice and clean.

Filters and Repair Costs

This is a bit tricky to determine because nobody can predict how much your repair costs will be. However, luckily for you, there is very little that can go wrong with a hot tub. Most of your costs will be in the filters, which will cost you about $100 a year to replace. A hot tub that seems to be getting little use may even need to only have them replaced once every couple of years, which brings it down to $50 per year.

Repairs, as we said, can be tricky to determine. We wouldn’t really budget for repairs. However, it is always good to have a bit of cash set to one side on the off-chance that you do need to do something.

Insurance costs

You do need to tell your insurance company you have a hot tub. It will not come under your general insurance. However, it is probably only going to add $10 to $20 to your insurance premiums each year. The cost of this is going to be pretty negligible. 

Water Costs

Of course, the cost of water is going to be dependent on the size of your hot tub. In the United States, the cost to fill up a hot tub will be under 75 cents. It really isn’t a lot of cash. However, do bear in mind that the main cost of refilling your hot tub isn’t going to be the water. It is going to be the energy costs of bringing that hot tub up to the standard temperature again.

You will need to replace your water at least four times per year.

Total Average Hot Tub Running Costs

If we add all of this up, the average cost of running a hot tub each year is:

  • $20 for insurance yearly
  • $3 for water
  • $200 for chemicals
  • $100 for filters
  • $45 per month for electricity (average). Yearly $540

So, your yearly costs would be $863, assuming you do not have any repairs that need to be carried out on the hot tub.

As you can see, the biggest expense will be the electricity bills for your hot tub, so we are going to round off by giving you a few ways that you can bring the cost of this down. This is going to make your hot tub a lot more energy efficient! We also have a few tips for helping to shave a few dollars from those negligible expenses.

Don’t turn off your hot tub

A lot of people make the mistake of turning off their hot tub when they are not using it. To be honest, it may seem sensible. After all, do you normally power things when they are not in use? However, once you look at why turning off a hot tub makes things more expensive, it will just click.

If you turn off your hot tub, it means that the water is going to cool down. If it cools down, the next time you power on your hot tub, the hot tub will need to expend a lot of energy bringing it up to the required temperature. If you are not turning off your hot tub, then the temperature is a bit easier to maintain. It is easy for the hot tub to accommodate for a degree falling here and there. Plus, there are ways that you can stop even those small temperature falls, which can save you even more cash.

…But Turn off the Air Jets

You shouldn’t turn off the heat of your hot tub, but you absolutely should turn off the air jets when you are not using your hot tub. These air jets will cool the water down. They are, essentially, blowing cold air into the water after all. Once again, this is something that most people fail to realize. 

Get a better cover for your hot tub

While the cover for your hot tub is going to be OK, if you really want to bring down the cost of your energy bills, then it is worth looking for a higher-quality cover for your tub. These covers will have better seals, and they tend to be a lot thicker too. This means that less heat is able to escape, which will ensure that the hot tub doesn’t need to work as hard to maintain the temperature.

Yes. We know that buying a better cover for your hot tub does mean that you need to spend a bit more cash, but over the lifetime of your hot tub, it is going to save a surprising amount of money. Generally speaking, a better cover will also help to keep your water a bit cleaner. This may save money on the chemical and filter front too.

If your hot tub is outside, then you may want to put a bit of effort into protecting the tub from the elements. A cheap windbreak will go a long way here.

Shower before you get into the hot tub

If you do not shower before you get into the hot tub, then you are essentially going to be dragging in a ton of body oils, makeup, and dirt and grime that has latched onto you. This is going to clog up the filters really quickly. Of course, those chemicals are also going to have their work cut out trying to remove all those bacteria from the water. The result is a need to empty your hot tub far more frequently. It also means that you need to use chemicals a lot more often.

Regular check chemical balance and PH levels in the hot tub

If you can, try to check chemical levels and PH levels in your hot tub every couple of days. If you do that, then it is likely going to be far easier for you to spot when levels are out of sync. This allows you to fix the problem far quicker. It also means that you are less likely going to need to add additional chemicals. You almost certainly won’t need to ‘shock’ the water (this can be incredibly expensive). Just get yourself into the routine. It shouldn’t be too hard.

Empty your hot tub once every 3-months

If you empty your hot tub every 3-months, then your hot tub will be cleaner. This means fewer chemicals needed. It also means that your filters can be kept clean. This will reduce how often you need to replace them. Sure, you will need to spend a bit of cash heating up the hot tub again, but at least you will be saving money elsewhere. Plus, you are going to be in cleaner water…which is always going to be a plus!

There is no denying that hot rub running costs can be a bit on the high side. However, if you do put in the effort, you can reduce them a little. When you are running a hot tub, every single dollar will count, particularly when you spent so much on the hot tub in the first place!

Posted in hot tubs

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