GETTING YOUR SAUNA READY
FOR THE HEATER
Ok so you’ve purchased your sauna heater. What now? If you
are constructing a new sauna, it’s important to have everything
ready and in place for the installation of your new sauna heater.
First, it’s important to confirm that you
have chosen the correct size for your
sauna. While manufacturers sometimes
vary slightly in their sizing, a good rule of
thumb is 1,000 watts (1 kilowatt) for
every 50 cubic feet of sauna
For example, if your sauna is 6′ wide x 7′ long x 7′
ceiling height you would calculate your cubic footage
6′ x 7′ x 7′ = 294 cubic
feet. 294 divided-by 50
equals 5.88 (minimum
• Of course always go by the sizing of
your particular model.
• Usually going an extra kilowatt is not
a bad idea either.
• There are also other factors to
consider, such as when the sauna
heater is going in an outdoor sauna.
• Outdoor saunas require more
“horsepower” when you factor-in heat-
loss and additional load on the unit.
It’s good to consult with your
sauna dealer who can help you
with sizing for an outdoor sauna
for your geographic location.
Also, size ratings are based on
the assumption that your sauna
is well-insulated, generally with a
minimum of R-24 in the walls
and R-30 in the ceiling.
Another thing to consider is where the unit will be mounted.
It’s important to read your sauna heater’s installation
manual in detail prior to the actual installation.
Be sure and factor-in required clearances from walls and
benching, and allow extra room for a heater guard /heater
fence for safety.
It’s also not a bad idea to locate your sauna heater in
a convenient spot where you can easily adjust the bathing-
time and temperature and/or ladle water onto the hot
Manufacturers usually recommend that you install wood
blocking inside of the wall behind where the sauna heater will mount
for added support.
Also be sure that your electrician uses the proper high
temperature rated electrical wiring inside of the necessary conduit
for your sauna heater and light(s).
Make provisions for installing
temperature sensors and wall control
wiring (when a wall control is
used), prior to covering up the wall
with your sauna’s vapor
barrier and wood paneling on the
inside, or sheetrock, etc. on the
outside. If you are installing a wood or
gas sauna heater, be sure and plan-
ahead for ventilation and exhaust,
both of which are very important.
Ventilation is extremely important and often overlooked when a
sauna is constructed.
It is less about moisture with a sauna than providing fresh air.
The most ideal place to locate an air vent is directly below the sauna
heater and approximately 4″ from the floor.
Then it’s good to have an adjustable exhaust vent at the opposite of the
sauna, as far from the intake as possible.
The height is a matter of preference, but can be as low at 24″ from
the floor, or as high as 6″ from the ceiling.
Adjusting this vent controls the amount of flow through the room.
Ideally, your venting should allow 6 full air exchanges per hour.
Installation of Sauna Heaters
•Finally let’s talk candidly about the
installation of your sauna heaters. Many
of us pride ourselves on being “do-it-
Taking this approach to wiring
your sauna heaters without the
proper knowledge can damage
your equipment, your
property, or can even result in
the injury or death to those
using the sauna. Improper
installation of your sauna
heaters also voids your sauna
Experts always suggest having
electricians while installing sauna
heaters. Under normal
conditions it is relatively
inexpensive to have an
electrician to install your sauna
heater. Isn’t it worth the piece
of mind of knowing that your
sauna heater has been properly
installed and safe ?
Finally, when your sauna
heater is installed, the correct
placement of the stones is
important. First, wash your
stones thoroughly. Then
loosely place them in the
heater as directed by your
manufacturer. With most
sauna heaters you place the
stones in between
the heating elements.
• One of the most common installation problems is
when these stones are placed inside the sauna heater
• This often causes problems with the heater’s high-
limit, which is a built-in overheating safety feature.
• Always remember that the heater’s stones should be
placed loosely within the rock compartment, allowing
it to maintain the proper airflow.
The sauna heaters are the
engine of your sauna.
With a little pre planning
and by following these tips,
you’ll enjoy many years of
trouble-free sauna usage!
• Toll-free: 877-525-3504
• Local: (931) 525-3504
• The Sauna Place
• 750 East Spring Street #2
• TN 38501