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Frequently Asked Questions
Sauna
Sauna Heater & Electrical
All electrical wiring must be performed by a qualified and licensed electrician with complete knowledge of local codes and regulations. Costs of hiring an electrician can vary greatly depending on several factors such as your sauna’s distance from your electrical service box, the state you live in, and the cost of materials. We recommend you get quotes from 2 to 3 different licensed electricians before you begin the installation.
Our sauna heaters require 240v and must be hardwired to your electrical panel.
Manual Control Heaters
6kW Harvia manual control heaters require a standard two-pole 30-amp breaker and 10/2 wire, unless they are positioned more than 90 feet from the breaker in which case they will require 8/2 wire.
8kW Harvia manual control heaters require a standard two-pole 40-amp breaker and 8/2 wire.
9kW Harvia manual control heaters require a standard two-pole 45-amp breaker and 8/2 wire.
Digital Control Heaters (Wi-Fi)
6kW Harvia Wi-Fi heaters require a standard two-pole 30-amp breaker and 10/2 wire (10/3 if installing a light), unless they are positioned more than 90 feet from the breaker, in which case they will require 8/2 wire or 8/3 if installing a light.
8kW Harvia Wi-Fi heaters require a standard two-pole 40-amp breaker and 8/2 wire or 8/3 if installing a light.
9kW Harvia Wi-Fi heaters require a standard two-pole 45-amp breaker and 8/2 wire or 8/3 if installing a light.
10.5kW Harvia Wi-Fi heaters require a standard two-pole 50-amp breaker and 6/2 wire or 6/3 if installing a light.
9kW HUUM Wi-Fi heaters require a standard two-pole 50-amp breaker and 8/2 wire or 8/3 if installing a light.
Your electrician will drill a hole in the wall of the sauna below the heater for the conduit. All of the wires will come into the sauna through this hole. In a barrel sauna, it can also come up through the floor below the heater.
Use copper wire with 90C insulation. Do not use aluminum wire to make the connection. Consult with an electrician so you can determine the requirements for your particular situation. All wiring must conform to all national, state, and local codes and regulations.
Because our heaters run on 240v, they are quite energy efficient and should not be a significant drain on your electricity bill.
For manual control heaters, the interior sauna light will require a separate 120V power line, and a switch must be wired in-line. The light switch can be installed wherever is convenient for your property; however, the switch cannot be inside the hot area of the sauna.
For digital Wi-Fi heaters, you do not need to run a secondary 120v line for the sauna light. When wiring a digital Wi-Fi heater your electrician will run a single 240v line from your panel to the Power Unit that comes with the heater. The Power Unit has different voltage outputs which will feed both your sauna heater and the sauna light. The sauna light will be controlled from your digital touchpad and/or myHarvia App.
Our Harvia heaters are made in Finland by Harvia, the world's leading sauna heater manufacturer.
Harvia heaters are considered the gold standard and we import our heaters directly from Europe, where they are subject to strict safety and quality standards.
HUUM sauna heaters are manufactured by HUUM in Estonia, a country known for high quality saunas and heaters.
All our sauna heaters are certified for use in the United States.
Our heaters are hardwired. They must be directly connected to a power source by a qualified and trained electrician.
The unique mounting requirements of the different heaters means that each sauna design is only compatible with certain heater types. For example, the only heater that mounts compatibly in our Extra Wide Barrels is the KIP heater family.
In our larger saunas, an 8kW or higher wattage heater is advised so we do not offer the 6kW heater as an option.
Yes. The temperature sensors on Harvia sauna heaters are calibrated at sea-level.
If you are installing an electric sauna heater above 5000ft in elevation, some adjustments will need to be made to the sensors after installation.
If you are installing the heater above 5000ft, please have your electrician contact us and we will connect them with Harvia's dedicated tech support. Harvia's technicians will advise on how to perform the necessary re-calibrations.
Wi-Fi Enabled Heaters
Like all sauna heaters, digital sauna heaters require 240v and must be hardwired to your electrical panel. However, for digital heaters, the power from your electrical panel will run first to a Power Unit box (see diagram below) which must be positioned outside of the sauna.
Please note the Harvia and HUUM power units are not weatherproof and must be housed in weatherproof protection or located in a dry area. Thermowood weatherproof box kits for Harvia KIP heaters are available for purchase here: www.redwoodoutdoors.com/products/weatherproof-box-set-x-harvia-kip-wi-fi/
The Power Unit feeds power to your sauna heater, interior light, temperature sensor, and Control Panel via separate outputs.
The Control Panel (pictured below) must be positioned within 16' feet of the Power Unit. The cable is 16' long and cannot be spliced. If a longer cable is needed, it may be special ordered in lengths up to 82' for an additional cost. The Control Panel must be mounted outside of the sauna and housed in a weatherproof box or located in a dry area. Finally, the Control Panel must be located where it has a strong Wi-Fi signal to allow for remote control from your smartphone.
Unfortunately, you cannot upgrade a manual control heater to a digital Wi-Fi system in the future. While the manual and digital heaters look very similar, they are in fact totally different heaters. This means you must select the control system you are going with at the outset. If you want to change in the future it would mean replacing the heater itself.
Wi-Fi sauna heaters (both Harvia and HUUM) require a 2.4GHz connection.
If you have 5GHz internet set up on your property, many modern internet routers have dual band capabilities allowing users to create a separate 2.4GHz network to pair with your heater. Sometimes a router upgrade is needed to achieve this. If you have questions about how to set this up, please contact your internet provider for support.
Wi-Fi heaters require a strong (full bar) signal strength for connection. If you have a weak connection where your sauna is located, a Wi-Fi extender may help with this.