inflatable hot tubs frequently asked questions faqs

When you are looking to buy an inflatable hot tub, you will almost certainly have a lot of questions or maybe concerns. Here are the questions which are most frequently asked by those looking to buy their first inflatable hot tub.

How Much Does An Inflatable Hot Tub Cost?

There is a wide variety of models available, as you’ll see from our reviews. These range in price from around $300 up to a top-of-the-range model costing several thousand dollars.

There are a number of factors involved in the price of each model. These include the size, the number and power of the massage bubble jets, the hot tub’s construction, along with the number of accessories which come as part of the package, such as hot tub cover, padded seats, and so on.

It is best to start by deciding the price range you want to pay, and then look at our reviews to see which is the best model for your money. Generally speaking, inflatable hot tubs fall into three categories:

You can check our reviews for each price range by clicking on the links for each.

What Size Inflatable Hot Tub Should I Buy?

Put simply, the bigger your hot tub is, the more people you’ll fit in it. But big is not necessarily better.

Larger inflatable hot tubs are generally more expensive, and they take longer to fill up with water, and cost more to heat. And – although it might be nice to have lots of room to stretch out in – if it’s going to be only you who is going to be using the hot tub, for example, then you’ll be paying a lot in heating costs to keep an over-large inflatable hot tub running. Therefore, you’d be better off buying a 2-person or smaller 4-person inflatable spa.

On the other hand, you might want to use your inflatable hot tub for water aerobics, in which case a smaller hot tub would not be big enough.  Therefore, a larger 4-person portable spa would be a better choice.

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As you can see, it is important to note down, or carefully think about, exactly how many adults are going to use the hot tub, and what it is going to be used for.

You do need to think about how many people you plan on getting into the hot tub at once. Portable hot tubs range in size from those which fit 2 people in comfort, up to those seating 8 adults or more. So if you’re buying your hot tub as a place of relaxation for just yourself, and your partner, then a 2-person model would be fine. However, you might be better off considering a 4-person hot tub, in case you decide to entertain or have visitors.

A 4 to 6 person model would be perfect for a family, as this has enough space for mom, dad, and the kids, as well as any of your children’s friends.

If you lead an active social life, and you see yourself having a lot of friends around to enjoy the delights of your new inflatable hot tub, then you’d be advised buying a model for 6-8 adults or even more.

We suggest the following sizes as a general guide.  Please note these are for round hot tubs – square or rectangular hot tubs can be a little smaller in each case, as they allow users to stretch out more.

  • 2 person hot tub: 71″-75″ across
  • 4 person hot tub: 75″-77″ across
  • 6 person hot tub: 77″-85″ across

How Much Space Does An Inflatable Hot Tub Take Up?

When you think about the size of your portable hot tub, remember you will need some space around it so that you can get in and out easily. One of the smallest quality models is the Lay-Z-Spa Miami Inflatable Hot Tub, which measures 71″ in diameter. If you add on, say, 24″ for ease of access all around, then you could easily fit this model into a space measuring 10 feet across.

The great thing about inflatable hot tubs is that they are portable, so you can set yours up in any suitable spot. Just make sure the ground is level, and that you have enough space around it for access.  Many models also have grab handles.  So you can inflate your portable hot tub in a large open space and then lift it and put it into position once it is inflated.

We recommend a clearance area of at least 24″ (2 feet) all around the hot tub – preferably more if you have the room.

Can I Set Up My Inflatable Hot Tub Indoors?

Yes. As long as you choose a room with a solid floor, usually a room on your ground floor, as when it is filled your hot tub will be very heavy (see the next question for more on this point).

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Make sure the room is well-ventilated, as well, as your hot tub does give off steam which will condense. Also, make sure to place your portable hot tub away from electrical sockets and valuable items, just in case some water accidentally splashes, or there are drips when you get out.

How Much Does An Inflatable Hot Tub Weigh?

This can be a critical question if you are thinking of putting your inflatable spa on a deck or maybe even inside or in a garden building.

When a medium-size inflatable hot tub such as the Coleman Lay Z Spa is filled with water, it weighs 2,700 lbs. You then have to add in the combined weight of the people who get into the tub – if it’s 4 adults, that can add another 600-800 lbs.  So the combined weight could be 3,500 lbs. That’s the equivalent of a family car.

So before you decide where you are going to site your inflatable hot tub, make sure any floor, decking, or base is strong enough to fully and safely support the equivalent of a family car.

Does An Inflatable Hot Tub Run Off A Household Electric Supply?

Inflatable hot tubs are inflated, run, and heated by electricity. They come with a long cable which has a normal household plug on it, that you simply plug in to an everyday household socket. So there’s no need for any special wiring or paying an electrician.  You just plug it in yourself and away it goes.

Do check that the electrical lead is long enough for you to site your hot tub where you choose, as we do not recommend using an extension cable.

How Much Does It Cost To Run An Inflatable Hot Tub?

Of course, knowing how much it costs to run an inflatable hot tub can vary, depending on a variety of factors.  These include how big your hot tub is, how warm or cold the ambient air is, how hot you keep the water, how long you run the massage system for, whether you have accessories such as an LED light show, and so forth.

Generally, though, plan on it costing around $10-$15 a week for average use, including using an insulated base and insulated cover to maintain the water temperature while you’re not using the spa.

You might also want to check out this useful article on How To Save Energy With Your Hot Tub.

How Do I Set Up An Inflatable Hot Tub?

cheap inflatable hot tub filling upIt really is simple to get your inflatable hot tub up and running in no time at all. It should take around 10-15 minutes to lay out your hot tub on your chosen site, plug it in and inflate it, ready to fill with water.

Make sure that you do not over-inflate your hot tub, however, as you need to allow a little give in the tub for the weight of the water.

It will take around an hour to fill your portable hot tub with water, and then between 12-24 hours to heat the water to the standard temperature of 104F. The actual time depends on the size of your tub, as the bigger it is, the longer it takes to heat.

One other factor is how hot or cold the day is, as well. The hotter the day, the less time it will take for the water to warm up.

Some people fill their inflatable hot tub with warm or even hot water, to give it a head start, so it takes less time to reach the required temperature.  It is perfectly OK to do this.

How Much Maintenance Does An Inflatable Hot Tub Require?

Not very much.  Looking after your inflatable hot tub is quite easy. Simply wipe the inside of the tub at the water level with a damp sponge, to keep it clean.  If you use a cleaner, do not use an everyday household cleaner, as this might damage the water filter and pump.  Instead, get hold of an inflatable hot tub surface cleaner from a site such as Amazon.

When you decide to take your inflatable hot tub down, you will need to give it a good clean before you put it away and then dry it out.

For more about this topic, read our article How To Clean Your Inflatable Hot Tub.

How Do I Keep The Water Clean?

inflatable-hot-tub-filter-2017Inflatable hot tubs come with a water filter system, so you will need to change the filter every few months, although this depends on how often you use your hot tub. You will also need a supply of chemicals which you add to the water, to prevent micro-organisms from flourishing. While your portable hot tub is not in use, you simply put a cover over it, to keep the water clean.

If your hot tub does not come with a cover provided, it is easy enough to buy a cover which fits your model.

For more detailed information about this important topic, please read our article How To Keep The Water Clean In Your Inflatable Hot Tub.

What Do I Do If My Inflatable Hot Tub Gets A Puncture?

As long as you’re careful, this shouldn’t happen, as inflatable hot tubs are made of very strong material. But with small children around, however, or simply an unfortunate accident with a decking nail or protruding branch, it is possible your inflatable hot tub might get a puncture and you’ll need to repair it.

If it does happen, you can use the repair kit which comes with your hot tub. These are simple to use and very effective.

Do I Need To Buy Lots Of Extras?

Your inflatable hot tub will come with everything you need to set it up and enjoy it straight away.

Remember, though, that you will need to purchase a replacement filter for your model, as well as some more water purification chemicals,. Our advice is to buy a supply of these when you purchase your hot tub, as it puts your mind at rest knowing that you already have them when the need arises.

For all the accessories you might need, you can check out our recommended inflatable hot tub extras by clicking here.

Can I Use My Inflatable Hot Tub All Year Round?

Possibly. It depends on exactly where you live, and how cold the winters are.  The bottom line is that you should not use your inflatable hot tub in temperatures below 40F.  That’s because the PVC material the hot tub is made of will become brittle in such cold weather and will quickly perish. If you are lucky enough to live in more warmer climates, however, your inflatable hot tub is suitable all year round.  You will also be able to use your inflatable hot tub if you site it indoors – and as long as you follow the advice we have given above.

There is one portable spa that is built to be used year-round and that is the Canadian Spa Rio Grande. It’s a great model, although it is in the luxury-price range. Check out our review here.

Is It Safe To Use An Inflatable Hot Tub If I Have A Medical Condition?

Generally, it is completely safe, although this does depend on your specific condition.  Check out our article on The Health Benefits of Hot Tubs by clicking this link: The Health Benefits of Hot Tubs.

If you do have any concerns about using an inflatable hot tub, please always consult a medical practitioner for advice.


We hope these FAQs have been useful, and they have answered your questions.  If you think of any we have missed, please do Contact Us and we will put them on the page with our advice.

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