Running a hot tub constantly can be more cost-effective, especially for energy-efficient models that are well-insulated.

If you use it your hot tub frequently, and want hot water, keeping the water hot will be much cheaper than constantly turning the temperature up and down.

Here are a few considerations:

Insulation and Efficiency:

If your hot tub is well-insulated, then energy-efficiency has been considered to maintain heat effectively.

If your hot tub retains heat well, maintaining a set temperature can use less energy than reheating the water from a much cooler temperature.

how much does a hot tub cost to runhow much does a hot tub cost to run

hot tub losing temperaturehot tub losing temperature

Usage Frequency:

If you use the hot tub regularly (daily or several times a week), it's generally more energy-efficient to keep it at a consistent temperature rather than reheating it every time you want to use it.


Energy Retention:

Covers and effective insulation inside the cabinet help retain heat.

A good cover minimises heat loss, keeping energy consumption extremely low when the hot tub is not in use.

hot tub covers minimise evaporation and retains water temperaturehot tub covers minimise evaporation and retains water temperature

thinking about hot tub running coststhinking about hot tub running costs

Thermostat Efficiency:

Keeping the thermostat at a stable temperature avoids the high energy demands of frequently reheating water from a cold start.


Electricity Rates:

Consider your local electricity rates, especially if you have off-peak pricing. 

You might prefer to adjust heating settings based on cheaper electricity periods.

hot tub in cold temperatures needs better insulationhot tub in cold temperatures needs better insulation

If you only use the hot tub occasionally, turning the thermostat down significantly or turning the heater off between uses could save money.

It's crucial to strike a balance based on your usage patterns, energy efficiency of your hot tub, and energy costs.

Remenber, if you turn off your hot tub and do not empty it completely, without circualtion and sanitiser, the water will stagnate and become a breeding ground for bacteria. 

For precise recommendations tailored to your circumstances, consulting the hot tub's user manual or speaking with a professional might be helpful.