When considering the purchase of a hot tub, one question almost always comes up:

"How much will it cost me in electricity?"

This is a perfectly legitimate concern. A hot tub must maintain several hundred liters of water at a pleasant temperature, ensure filtration, and power various equipment.

However, the electricity consumption of a hot tub depends on many parameters and not just its size.

At Provence Spa, we explain what actually influences a hot tub's consumption and how to effectively limit your energy expenses.

What determines a hot tub's electricity consumption?

It is difficult to state a single cost for all hot tubs.

Consumption varies depending on:

• the quality of insulation;
• water volume;
• outdoor temperature;
• set temperature;
• frequency of use;
• the quality of the thermal cover;
• filtration cycles;
• the heating system used.

Two hot tubs of similar dimensions can therefore have very different consumption rates depending on their design.

Does hot tub size influence consumption?

Yes, but it's not necessarily the most important factor.

A 6-person hot tub generally contains more water than a 3-person hot tub. It will therefore require more energy for the initial temperature rise.

However, once the water is hot, the determining factor becomes primarily the hot tub's ability to retain that heat.

A large, perfectly insulated hot tub can thus be more economical to maintain at temperature than a small hot tub with poor insulation.

Heating represents a significant portion of consumption

When you fill your hot tub with cold water, the heating system must run for several hours to reach the desired temperature.

But once this temperature is reached, the hot tub does not heat continuously.

The system turns on when necessary to compensate for heat loss.

It is precisely for this reason that insulation is essential: the less heat the hot tub loses, the less the heater has to run.

Insulation: an essential criterion

At Provence Spa, we place great importance on insulation when recommending a hot tub.

Aquavia Spa has developed several solutions designed to limit heat loss.

Among them:

• EcoSpa, which improves the overall insulation of the hot tub;
• Nordic Insulation, which further reinforces thermal protection for relevant configurations;
• Energy Saving Cover, a cover designed to limit heat loss from the water surface.

These different technologies work together to help the hot tub maintain its temperature longer.

Why is the thermal cover so important?

A significant portion of heat loss occurs through the water's surface.

This is why it is essential to always replace the cover after each use.

A good cover helps to:

• retain heat;
• limit evaporation;
• reduce heating needs;
• protect the water from external impurities.

This is probably one of the simplest steps to reduce your hot tub's consumption.

What temperature should I choose?

Every extra degree requires energy.

It is therefore not necessary to constantly maintain your hot tub at maximum temperature.

For comfortable use, many users choose a temperature around 36 to 38 °C, depending on the season and their preferences.

In summer, a lower temperature may be largely sufficient.

Should I turn off the heater when not using my hot tub?

Not necessarily.

If you use your hot tub regularly, it is generally better to maintain a relatively stable temperature rather than letting the water cool completely and then having to reheat it before each use.

However, during a prolonged absence, you can reduce the set temperature to limit consumption.

Can a heat pump reduce the bill?

Yes, it's a particularly interesting solution for people who use their hot tub regularly.

A heat pump recovers calories from the outside air to heat the water.

It therefore uses less electricity than a conventional electric resistance heater to produce an equivalent amount of heat.

Aquavia Spa offers heat pump solutions compatible with certain models to further improve their energy efficiency.

Does filtration consume a lot of energy?

The filtration system runs daily to maintain clean water.

Its consumption depends notably on:

• cycle duration;
• pump type;
• filter condition.

A clogged filter reduces water circulation and can force equipment to operate under less optimal conditions.

Regular cleaning of filters therefore also contributes to the overall efficiency of the hot tub.

Our tips for reducing your hot tub's electricity consumption

A few simple habits can make a real difference:

• always replace the cover after use;
• regularly check the condition of the filters;
• avoid unnecessarily high temperatures;
• protect your hot tub from the wind when installed outdoors;
• choose a model with good insulation;
• adapt filtration cycles to your usage;
• consider a heat pump for intensive or year-round use.

Is a cheaper hot tub to buy necessarily more economical?

No, and this is an important point.

When purchasing, it is tempting to only compare prices.

However, a hot tub that is very economical to buy but poorly insulated can require more energy throughout its lifespan.

At Provence Spa, we therefore prefer to look at the long-term cost of ownership, taking into account manufacturing quality, insulation, and energy equipment.

This is one of the reasons why we have chosen to work with Aquavia Spa, which integrates energy performance into the design of its models.

Can you know the exact cost before buying?

An estimate can be made, but caution should be exercised with figures advertised online.

The actual cost depends on:

• the chosen model;
• the climate of your region;
• the price of your electricity;
• your usual temperature;
• your frequency of use;
• the hot tub installation.

Two owners of the same model can therefore have different consumption rates.

The most important thing is to compare hot tubs under similar conditions and to favor a design that limits energy losses.

Our opinion

At Provence Spa, we believe that electricity consumption should be taken into account from the moment you choose a hot tub.

The number of seats is important, but the quality of insulation, the thermal cover, and the heating system often have an even greater impact on the cost of use.

A well-designed and properly maintained hot tub can be used all year round while maintaining controlled consumption.

Our advice is simple: don't just look at the purchase price. Also consider the energy performance of the model you are considering.

In summary

The electricity consumption of a hot tub depends on several parameters, and there is no universal amount applicable to all users.

To limit your expenses:

• choose a well-insulated hot tub;
• always use its thermal cover;
• properly maintain filtration;
• adjust the temperature to your usage;
• opt for high-performance energy equipment.

With a few good habits and a correctly designed hot tub, you can enjoy your wellness area throughout the year without unpleasant surprises regarding your electricity consumption.