Also, the Harvia is the most budget friendly sauna heater I sell. It is for residential use. I strongly recommend using igneous rocks with this sauna.
If you are going to pour water on the rocks, the round rocks give a lighter steam with a higher dryness fraction, much less latent heat while the irregular type gives. Most people prefer the irregular type unless using it at the highest temps. There are 3 types of igneous rocks. The Rhyolitic type only goes up to about 800 degrees. The Andesitic type can heat up to 1000 degrees while the best ones, the Basaltic type can get up to 1200 degrees. The better the rocks the lower the electricity cost to keep the latent heat in the sauna.Harvia is a good mid end sauna heater for those who don't want the cheapest and don't want the highest end commercial type. I list all Harvia saunas at the MAP price.
We are not allowed to advertise prices under "minimum advertised price" on almost all the saunas we sell. If you are know the kilowatt size heater, which controller, and if you need accessories, we can put a package together. Also, if you want rocks, make sure you know what type of heat you want.
Some types hold more latent heat and some types turn the water into vapor instantly but don't hold a lot of latent heat which can be a problem for those that aren't are of this. I know a lot of about sauna heaters.
Been reaching them for over 20 years. Best tip: I take a ziplock bag, the gallon size, and freeze it. Then I take the frozen block of ice on the sauna grill. Instead of dumping water on the rocks, the few block I froze of ice take a long time to melt and it drips water during my entire sauna session. I like constant temperature, constant steam but with extremely low heat. It feels good and nothing like a steam room and just feels good the whole time. Once people freeze the block of ice, people don't go back to dumping water on the sauna heater.