What Do Hot Tubs Cost to Run?

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New hot tub owners, and people who are thinking about buying a hot tub, usually wonder what to expect in terms of the spa running costs. Essentially, there are two main costs, water treatment chemicals, and electricity. Water chemicals are approximately $20 per month. The electricity costs vary depending on the local rate, usage habits, time of day and your provider. Generally speaking, there may be an increase of around $1 – $2 per day on your energy bill.

There are a few things you can do to save money on your hot tub running costs and keep your monthly expenses down.

Hot Tub Cover

An insulated, properly fitted hot tub cover can save you money. It traps heat, reduces water evaporation, and helps reduce the chemical evaporation. If you have an outdoor hot tub, a hot tub cover can help prevent leaves, and other debris from landing in the water, which means you don’t have to clean it as often, saving you time.

Keep It Clean

The filtration system of a clean hot tub works much more efficiently than the system of a dirty one. Dirt, oils, bacteria, and grime mean that the plumbing systems need to work harder, and this can cause damage. Parts of the hot tub may fail sooner than expected, and the water filters may need replacing more often.

A clean hot tub works better. Also, following the schedule for deep cleans, and regular draining can help improve the life span of the parts, and keeps the spa in perfect working condition.

Wind Cover

Outdoor hot tubs have more challenges than indoor ones. They’re more likely to collect debris, for one thing. However, the outdoor challenge that can have the most impact on your running costs is the wind.

The air moving around the hot tub can increase the rate of water evaporation. It also cools the temperature of the water. Basically, you need to refill the water more often, and the tub will need to work harder to keep the water to the set temperature.

If you haven’t installed your hot tub, you can choose a spot that is covered from wind. If you have installed your tub, and find that there is little or no wind coverage in your location, add some. Large plants or bushes can provide a wind barrier, and add a relaxing vibe to your spa area.


The maximum hot tub temperature recommendation is 104 degrees Fahrenheit, but even lowering this by a few degrees can reduce your costs. A lower temperature uses less energy, reduces evaporation, and can help to preserve the water chemicals. Try setting your tub at 100 degrees. It should b warm enough to enjoy and relax, but will also reduce the running costs.

Saving money on the running costs can take a weight off your mind, and leave you to relax in your hot tub with ease.

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