Harvia Sauna Heaters

Harvia publishes a two-year warranty on heaters, steam generators and control units, and adds a year if you register an electric heater. Dealers state it inconsistently — we have seen one year on elements against five on components, and one year on everything — so get the terms in writing for the model you buy.

The 36 here

$1,090 to $8,184, median $4,721.50. Twenty-five are wood-burning and eleven electric. Every one of the 36 states a kW output, from 4.5kW to 40kW, which is unusually complete and makes sizing straightforward.

Sizing

Match the kW to your room volume, not your preference. Undersized never reaches temperature; oversized cycles hard and wastes power. Electric needs a dedicated circuit run to the room, wood needs a flue and clearances, and that choice usually decides more about installation cost than the heater price does.

Delivery

A wood stove is a two-person lift. Free shipping to the lower 48, no minimum, and it stops at the curb — the crate is left at the end of your driveway. Getting it inside is a $600 white-glove upgrade. Getting it inside and assembled is $1,800, which covers everything except electrical work: we recommend you hire a local electrician for that, because the wiring has to meet your local code and pass local inspection. Service fees are non-refundable: if the sauna goes back, the installation does not.