Sauna provider - price/performance ratio

Hello,
my parents would like to have a sauna in their bathroom. The room is big enough for it. Do you have any tips for me on which providers offer a great price-performance ratio and what to pay attention to?
Thanks

Hello,
thank you very much! I've also heard from a friend that unfortunately, there is little expertise in hardware stores. How annoying that it turned out that way for you. Is it possible to install a larger oven afterwards?

Hi,
yes, of course you can do that. But that clearly exceeds the budget. You would have to lay a thicker cable, the electrician has to come again, and the new oven is also added. So it always means bringing a lot of time if you want to sauna...
Have a nice weekend
fun

Ahoy! The electrician problem can be solved :-) Already during the first inquiries within the electrician acquaintances, many chuckle stories from exasperated new sauna owners came to light! Many thanks in any case for the tips!