The Harvia Virta Combi is an easy to use combination sauna heater and automatic steamer that brings complete climate control to your fingertips. It’s easy to use, reliable, and satisfying.
It’s available in 6kw, 8kw, 9kw, and 10.5kw versions.
Sizing
When sizing a Harvia sauna heater, be sure to factor in glass and cold surfaces like brick and stone.
It’s not too difficult but please reach out if you’d like help. We’re usually available in the chat window below.
First calculate the pre-adjusted volume of your room in cubic feet. Length x Width x Height.
Next, multiply by 1.5 if your sauna does not have insulated walls but is constructed with logs or a sauna kit with a single layer of wood. This includes barrel saunas.
Next add the area of glass (LxW) in the sauna and multiply the total area of glass by two (or 1.5 if the sauna is not insulated and you already multiplied by 1.5).
Your adjusted volume is your initial volume x 1.5 (if not insulated) + Glass Adder
harvia virta combi sizing chart
There are a few important considerations once you’ve determined the ideal heater. All models can be ordered with standard 240v Single Phase Power.
Note that the 10.5KW (HL11U1SA and HL11U3SA) version is 3 inches deeper and available in 208v 3ph for commercial applications in North America. Ideal for that public sauna deciding between a steam room and sauna.
If your hot room is larger than 635 cubic feet you can put two Virt Combi’s side-by-side or look at the Virta Pro, but that does not have a steamer.
All 240v Harvia Virta Combi heaters require two circuits to accommodate the steamer.
Next, let’s take a closer look at safety distances.
All Virta Combi heaters require a minimum sauna height of 75″ and side clearances of 2″. This works out well for most home and commercial saunas.
If you have less than this, send your drawings to a Sauna Marketplace tech to see if there’s a heat shield that will reduce the clearance requirement.
The System
Power Unit
The Harvia Virta Combi system starts with the Power Unit, which your electrician will first power up. This can be considered the system’s ‘Brains’ or ‘Central Hub,’ and it comes with your Xenio controller.
In an outdoor sauna we like to put the power unit on the exterior of the back wall. It’s best to place this power unit in a waterproof box, the dimensions are: 14.3” x 2.9” x 10.5”.
In an indoor sauna, it can be recessed in an accessible equipment box.
Controller
From the power unit, a low-voltage data cable will run to the digital controller or keypad. This is where you can conveniently control the temperature and humidity near the sauna.
Actually, it can be places almost anywhere with additional cable. Contact your Sauna Marketplace representative for an additional data cable for your Combi.
This controller should NOT be in the hot room itself. For an outdoor sauna that does not have a changing room or large overhand, an equipment box is recommended to protect it from direct rain and sun.
The Wi-Fi upgrade allows the digital controller to be operated by your phone using the MyHarvia Mobile Application, available on Google Play and Apple Store.
The Wi-Fi is recommended as your sauna will have the best conditions after one hour of preheating and steaming. It’s convenient to get that started from your office, gym, or bed!
Temperature and Humidity Sensors
The power box is also where you will connect your temperature and humidity sensors for your Virta Combi system. See your manual for recommended placement. We recommend testing a few different placements to make sure you are happy with the results before drilling.
Lighting and Fan Control
Your Xenio power box has optional outputs for 120v circuits for both Lights and Fan and can even power a Saunum AirSolo climate equalizing system!
Add Ons
Stones
When stones are selected above, your heater will come with 3 or 4 boxes (depending on model) of Harvia AC3020 Stones – chosen for use with the Virta Combi.
Safety Guards
The Virta design has an integrated heat shield, but an additional safety guard can be added to help prevent people from accidentally touching the stones.
Plumbing
Most people fill the water reservoir but it’s also possible to run water lines to the heater as shown:
Bundle and Save!
Do you need sauna wood, accessories, and other materials besides your Virta Combi? Thinking about pairing it with a Saunum AirSolo to create more even temperatures?
Select ‘Invoice Me’ at checkout, and tell us everything on your sauna shopping list. We’ll look for discounts and streamline the process.
Prebuilt
Sauna Brushes
Vents