What electricity costs do I have to plan for my sauna at home?
A sauna at home is a great thing. Whenever you want, you can use the sauna as you please. Alone, with the family or together with friends. But what about the electricity costs? What costs should I expect and how can I influence them? Or will it be cheaper to visit a public sauna?
We would like to answer these and other questions in this blog post. In the first place a remark is important. The statements made refer to regular sauna use, i.e. about once a week, and do not contain any binding information about certain electricity tariffs as these vary from region to region and from provider to provider and are subject to certain fluctuations.
Let us perhaps start with the last question from the introduction. Will a visit to the public sauna be cheaper than using the home sauna?
Not in principle. Of course, the home sauna must first be purchased, installed and put into operation, which certainly leads to costs. But these are one-time fixed costs that we do not include in our considerations. More important are the running costs, such as those for electricity. On average, the public sauna does not come off any cheaper. Although the electricity costs are usually spread over many visitors, there are also the costs for building, maintenance, cleaning, personnel and repairs, which are always added proportionately to the entrance fee for the sauna. It should also not be forgotten that a public sauna or sauna club is always operated with the intention of making a profit.
In the home sauna, on the other hand, you only pay the electricity costs depending on use and any repairs that may still be necessary, such as the replacement of the sauna heating rod or maintenance.
What electricity costs must I expect for the home sauna?
The answer to this question cannot be clearly quantified. The electricity consumption of the sauna always depends on the connected and used consumers such as the sauna oven, fan, lighting and possibly additional equipment that is powered by electricity.
The main consumer in the sauna is without doubt the sauna oven, provided it is electrically operated. If one wants to determine the power consumption, one can calculate it approximately well. For this, one needs the information about the power consumption in watt. For example, if a sauna heater has a power output of 8 000 watts, then the heater consumes about 8 kW in one hour in full-load operation. With this information, you can calculate the approximate electricity costs according to your energy supply contract.
Sauna use once a week for 2 hours, including heating time, sauna oven with a power consumption of 8 000 watts. The total price for one kilowatt hour correspondingly is 28 cents.
8000 Watt x 2 hours 0 16 000 Watt = 16 kW
16 kW x 0,28 € = 4,48 €
4,48 € x 4 weeks / month = 17,92 € / month
In this example, the cost of electricity consumption is approximately € 17.92 per month. However, it must be taken into account that the sauna heater does not run at full load for the entire time, so that lower costs can be expected for heating the sauna. This is compensated by the operation of the control unit, fan and light, so that with the calculated price we are relatively close to the reality.
As the sauna heater's output and frequency of use increase, so do the electricity costs. However, since we assume a small home sauna for 2 hours a week for a single use, our calculation example should be very close to reality. Please calculate according to your concrete figures what the regular sauna operation will approximately generate in electricity costs. Certainly less than initially assumed.
Can the electricity consumption of the sauna be reduced?
Under certain conditions, yes. As always, when it comes to heat and consumption, a good insulation from the outside is helpful and important for the sauna. The less heat that escapes to the outside, the lower the losses that are reflected in the heating costs. Special attention should be paid to the insulation of the sauna cabin on the walls and on the ceiling provided by the customer.
Many sauna users switch on the sauna oven too early. Find out how long it takes your heater to heat up the sauna cabin to the desired temperature. Then you will also know which preheating time is appropriate. Remember to switch off the heater as soon as you want to finish your sauna session. Once the heat is released, it will remain in the rough for a good while even without the heater running.
A further proven means to save costs is a possible change of electricity supplier. There are numerous portals on the Internet that make it easy to compare electricity prices and make the switch convenient.