Types of Hot Tub
What is an Inflatable Hot Tub?
Price range: $300- $1500
An inflatable hot tub is just that, inflatable. It uses an air blower to inflate the walls and power the jets, and a portable heater keeps the water warm. An inflatable hot tub can also be set up and used very quickly. And generally speaking the cost of an inflatable hot tub is going to be less than other types.
Made using PVC on the lower end and reinforced vinyl on the higher end, inflatable hot tubs don’t have the longevity of hard-shell spas, and those on the cheaper side aren’t durable. This also makes them cheaper to manufacture, however.
Most inflatable spas are round and reinforced with padding on the bottom instead of seating. And they can seat between 3 -7 people, depending on the size you’re looking at.
Features are limited on inflatable hot tubs and tend to be basic if they do. On the more expensive hot tubs, you can get headrests, drink holders, and even lights, should you wish.
One of the benefits of a blow-up spa is the ease of maneuverability, being easy to take down or pop up. But they do require a flat and stable surface like all hot tubs and will need padding underneath.
The material and nature of how inflatable hot tubs are used keep the cost of inflatable hot tubs down, meaning they are cheap to buy and easy to maintain. However, they aren’t very durable and won’t provide you with a good massage or target specific areas of your body.
Features
- Plug in and play
- Additional headrests and lights on some models
- Easy setup
Are Inflatable Hot Tubs Energy Efficient?
Inflatable spas may not retain as much heat and are often less energy-efficient because of the way they are made. Although the pocket of air in the sidewalls and floor provides some insulation value, it’s typically less than what is found in a permanent hot tub. This means you will most likely pay more to keep an inflatable hot tub heated than you would with a permanent hot tub.
Pros
- Affordable- Budget-friendly
- Plug in and Play- Quick setup to start using it in a short time
- Portable- Can be set up just about anywhere
- Easy to maintain- Less maintenance than a permanent hot tub
Cons
- Less durable- Not as long-lasting as a hard-shell hot tub
- Limited features- Few options for extras
- Not winter-proof- Not suitable for year-round use
- No seating- On the ground most of the time
- Basic hydromassage- Limited jets and massage options
- Energy efficiency- Less insulation and less energy efficient
Inflatable Hot Tub Collections
- Lay-Z Spa Airjet™ range
- MSpa® Premium series
- Intex® Pure Spa range
What is a Permanent Hot Tub?
Permanent or hard-shell hot tubs come in different shapes and sizes but are made from plastic, wood and sometimes metal. They are a permanent structure that can’t be taken down like an inflatable spa and take up a certain amount of space, so it’s important before purchasing one to ensure you have enough for it to fit.
Permanent hot tubs costs can vary. They offer various features within each range, with more and exclusive ones available on higher-priced hot tubs.
Often permanent hot tubs have the ability to be put in-ground or within decking alongside being freestanding. This adds to the cost of a hot tub during the installation of the spa but can be versatile and help create a fantastic garden or outdoor space.
Wood-Fired Hot Tubs
Price range: $2,100-$11,600
Often seen as the traditional hot tub, a wood-fired spa is heated using a log-fired stove in place of electricity; however, you can purchase electric or gas/propane wooden spas as well.
Typically, they tend to be round in shape and hold 3-10 people with seating. Being a wood- fired process of heating, it can take, on average, anywhere between 3-5 hours depending on the quality of the tub's burner, amount of wood burning, and environmental exposure.
Being heated by wood means the water temperature is constantly in flux, and unlike electrical hot tubs, wood-fired hot tubs will need to have the wood topped up regularly to keep the heat high.
Most wood-fired hot tubs won’t have jets, and any that do will be powered by electricity. They are also limited in features, being more basic in form and function, which keeps overall costs to a minimum.
Not having a filtration or water treatment system like other hard shell hot tubs, the water will need to be changed every time you use it, which means reheating the water afresh, as sanitation and hygiene could become an issue.
Features
- Wood fire heating
- Traditional feel
Wood-Fired Hot Tubs Energy Efficient?
On the surface, a wood-fired hot tub might seem more eco-friendly, as you’re using wood, not electricity, to heat the water. But typically, this requires more time out of the tub to constantly be putting more wood into the fire to heat up. Being fueled by wood, this can lead to variable heat levels in the spa and, in winter, will require more to keep temperatures up.
Unlike an electric spa, which can keep the temperature constant, the water in a wood-fired hot tub will require reheating every time you use it. So, heating times and heat retention can vary.
Depending on the wood-fired hot tub in question, insulation quality can vary, with some having more advanced insulation like a steel frame supported by fiberglass or more basic than this, meaning you could see heat evaporate sooner.
Pros
- Environmentally friendly- Highly renewable fuel source in wood
- Cheaper to run than other hot tubs- Can typically keep costs down
- Lower chemical dependency- Less chemicals used over other spas
Cons
- Limited space and shape-Typically only available in round design
- Irregular temperature- Variable heat levels while using the spa
- Regular upkeep of wood- Required to keep heating the water
Wood-fired hot tub brands
- Skarsgard Alumi Tubs
- Cotswold Eco Tubs
Entry Level Hot Tubs
Price range: $3,500-$7,000
Many brands offer an entry level hot tub to their spas, with straightforward features that deliver value for money. Depending on the brand, the quality can vary along with the extras they want to put into the spa model.
Rotationally molded hot tubs fall into this range due to their ease of manufacturing and lower production costs. Rotationally molded spas are made from a durable high-density plastic called polyethylene which is poured into a spa-shaped mold and then rotated until it dries. It creates a one-piece plastic hot tub making them lightweight and easy to move.
Entry level spas are a step up over inflatable hot tubs and offer functional lighting and hydromassage. Being made with durable plastic, they differ from acrylic hot tubs in looks and don’t have a shiny fiberglass and acrylic top, though you can get imitations. If you are concerned about the look of your hot tub, this is something to take into account when thinking of a roto-mold hot tub.
Features
- Durable construction
- On frills accessories
- Roto mold is much lighter than other hot tubs
Are Entry Level Hot Tubs Energy Efficiency?
Entry level spas typically have less high-quality insulation in them to keep overall costs down, with acrylic shells retaining heat better than a roto-molded one. A large part of how energy efficient the hot tub is, will be coming down to the manufacturer and the brand.
Cheaper materials will see a decrease in energy efficiency over a spa made with quality materials and an emphasis put on insulation and keeping energy usage optimized.
Pros
- Cost-effective for hot tub newcomers- Entry level hot tub costs can vary.
- Lightweight- Roto-mold spas are lighter than acrylic hot tubs
- Moveable- Easier to move when empty and durable
- Plug in and play- Simple setup for ease of use
Cons
- Basic features- Straightforward extras
- Simple hydromassage- Functional rather than extensive
- Limited color choices- Not many options depending on the brand
- Cramped- Might cause issues if tall
- Mobility- This could be an issue for less mobile people
Entry Level Hot Tub Collections
- Dream Maker® Spas Stonehenge collection
- Freeflow® Spas Sport series
- AquaRest® Spa Elite range
Mid-Range Hot Tubs
Price range: $7,000-$12,000