The cost to keep your water filtered and ready to use is just a few dollars per week. The main cost will occur if you want to heat the water and this cost will depend on the volume of water, how often and how long you use it, the amount of insulation and where you live.
If you are planning to heat your swim spa for some or all of the year the best way to do this is with a heat pump which can heat (and potentially cool) your spa – providing total control over the water temperature for under $10 a week. With so many benefits it is no wonder why swim spas are so popular.
Do I want to heat my swim spa?
If you want to heat your swim spa at all you need to consider buying a dual zone swim spa so you can use the electric heater(s) to affordably heat just the spa end only and “take the edge off” the temperature in the swim end.
If you plan to heat your swim spa regularly, especially the swim end due to the large amount of water, you need to be able to use a gas or a heat pump as the electric heaters will be very expensive. Gas is an option but is more expensive to buy and run. The most efficient way to heat a swim spa is with a heat pump which uses air conditioning technology to heat heater for up to 75% less than an electric heater. Your swim spa should be “heat pump ready” and you should try and buy a swim spa with a heat pump compatible controller. This allow you to run your heat pump from your spa controller (not via a separate touchpad), use both heat pump AND electric heater for extra fast heating and extends the life of the heat pump. It also allows you to use your heat pump to cool the water in summer which is a very valuable benefit. Even if you don’t add a heat pump when buying your swim spa, make sure this technology and plumbing is in place as an option down the track.
The overall cost to heat your swim spa will also be affected by:
- The amount of insulation – the number of layers, the thickness of the layers and how well the base of the spa and the inside of the cabinet panels are insulated.
- How big a gap there is between the shell and the cabinet – a large gap allow heat to escape and cold air to enter.
- If the controller is a “smart controller” that monitors usage and adapts filtration and heating to minimise costs
- If the spa is smart meter ready – if your home has a smart meter you use offpeak power for heating and filtration, saving around 30%.
Look for these features when you are doing your shopping!