make sure its connected to a 20 amp circuit breaker, a 20 amp electrical outlet and you have to use 12 gauge wiring. We used a 15 amp outlet and 14 gauge wire and after 3 uses it burned out badly. Unfortunately our unit came with a missing part - the electrical cover over the wiring box. We had one manufactured and the seller refunded a part of the purchase price to avoid unnecessary shipping costs back and forth. Other than that the 110 V wiring is very easy - there is a video on Amazon. It heats up our sauna up to 174°F which is perfect. But we live in Florida and up north it might have some difficulties reaching that temperature. Depends on your sauna size, insulation and outside temperature. Try to order small sauna stones, the bigger ones will not fit.