It's a Wi-Fi touch control panel for Harvia Virta Combi sauna heaters. It runs both the heater and the steamer, controlling temperature and humidity independently, and it can also switch your sauna lighting and ventilation from the same panel.

A combi heater is a sauna heater with a built-in steamer. It needs a controller that can manage both the dry heat and the humidity — a standard sauna controller can't. The FX30C is that controller.

Harvia Virta Combi series heaters, single phase, up to 12.7 kW. That covers the HL80SA, HL90SA and HL110SA in their single-phase configurations.

No. This is the single-phase version. Three-phase Virta Combi heaters need the FX30C-U3-XC instead, which is rated to 10.8 kW at 208V. Buying the wrong phase version is the most common ordering mistake on combi controllers — tell us your heater's part number and we'll match it.

No. If your heater has no steamer, you want a standard controller — the Fenix FX30 or FX45, or a Xenio equivalent. The FX30C's humidity control has nothing to talk to on a dry heater.

Yes, and that's the point of it. You can run dry heat alone, steam alone, or both together at whatever balance you like. Temperature and humidity are set independently.

Sauna lighting and ventilation, alongside the heater and steamer — so one panel handles the whole room rather than you reaching for separate switches.

The panel connects to your home network, letting you control and monitor the sauna remotely — check the temperature, adjust settings, or turn it off from elsewhere in the house.

Remote starting on any sauna heater is governed by safety requirements, because no app can verify nothing has been left on the stones. Ask us how remote start behaves with your specific heater and controller pairing before you buy — it's a question worth a straight answer rather than an assumption, and it varies by heater.

No subscription applies to the hardware. You will need reliable Wi-Fi reaching the sauna, which is worth checking before you buy if it's an outbuilding at the end of the garden — a controller with no signal is just a wall panel.

The panel still works normally. Wi-Fi adds remote access; it isn't required for the sauna to operate.

12.7 kW on single phase. Every Virta Combi in the single-phase range sits comfortably under that.

194°F (90°C), matching the heaters it controls.

60 minutes per session. That's a safety limit rather than a limitation — it means the sauna can't be left running indefinitely by accident.

The panel has adjustable session settings. Exact scheduling behaviour is covered in the operation manual, and we're glad to walk you through what it does before you buy.

On a wall, surface-mounted or flush-mounted. It cannot go inside the sauna room — the panel isn't rated for sauna temperatures, so it mounts outside, typically beside the door.

Electronics don't survive 194°F. Every digital sauna controller mounts outside the hot room, which is also more practical — you set the sauna before you go in rather than reaching for a panel while you're sitting in it.

3.4" wide × 1" deep × 4.4" high (86 × 25 × 111 mm) for the panel itself. Small and unobtrusive. The separate power unit needs its own space — see below.

The control panel, a temperature sensor, a humidity sensor, the power unit, installation materials, the installation and operation manual, and the warranty.

It's the switching box that sits between your electrical supply and the heater — the panel is just the interface. It mounts outside the sauna in a dry location with access for service. Plan its position with your electrician before anything gets wired; it's the piece people forget until the install day.

Important one. If the sensor came with your heater, install it according to the heater's manual rather than the controller's. Harvia flag this specifically because the two manuals can give different instructions and the heater's takes precedence.

It reads moisture level in the room so the controller can hold your chosen humidity rather than just running the steamer blind. It's what makes a combi setup controllable instead of guesswork.

Yes. There's no plug — this is a permanent electrical installation and needs a licensed electrician.

The wiring must be done by a licensed electrician to local code. It's a mains-connected control for a high-load appliance, not a thermostat swap.

Yes, any licensed electrician can. Give them both manuals — the controller's and the heater's — before they start. The sensor placement note above is the one that causes callbacks.

No. Harvia sauna circuits should not be run on GFCI — it causes nuisance tripping and voids the warranty. If your electrician suggests one, point them at the installation manual first.

There are cable length limits between the panel, power unit and sensors. If your panel location is well away from the sauna, tell us the distance before you order so we can confirm it works or supply an extension.

Only if your heater is a Virta Combi of matching phase. Controllers aren't universal — send us your heater's model and part number and we'll tell you straight whether this is the right one.

Plastic housing, black finish, touch interface.

7 lbs for the complete kit, most of which is the power unit rather than the panel.

One year limited for consumer use, and one year limited for commercial use.

Yes — it carries an explicit commercial warranty. If it's going into a gym, spa or hotel, tell us; we handle commercial projects regularly and there may be considerations around session limits and access control worth discussing.

Yes — ETL listed. Your electrical inspector will want to see that listing.

Harvia design and manufacture in Finland.

Both are Wi-Fi combi controllers covering the same job. The Fenix is Harvia's newer touch-panel line; the Xenio is the established range. Which one you want often comes down to which your heater specifies and which interface you prefer. Ask us and we'll lay out the difference for your specific heater.

Those are standard controllers for dry sauna heaters — no humidity control. The C in FX30C is what makes it a combi controller. If your heater has a steamer, you need the C version; if it doesn't, you don't.

No. Heaters with onboard controls, like the Harvia KIP B series, are self-contained and don't take an external panel. This controller is for heaters that ship without controls.

By parcel carrier. Freight is calculated to your address — ask us for a delivered price, particularly if you're ordering it alongside a heater and stones.

Get in touch for current availability and a realistic date. We'd rather give you a real timeframe than a stock phrase.

Wipe the panel occasionally and keep it dry. There's nothing to service. The steamer's water reservoir is what needs attention on a combi setup, not the controller.

Call us. We handle warranty claims directly with Harvia rather than handing you a phone number. Note this is a serialised item, so keep your paperwork — the serial number matters for warranty claims.

Most buyers need this quoted with a heater and stones, and freight varies by address. Request pricing and you'll get one delivered figure for a complete working setup rather than a number you have to add to.

We're an authorized Harvia dealer, and on controllers specifically that's worth something — phase, heater compatibility and cable runs are all easy to get wrong on paper. Send us your heater details and we'll confirm the correct controller before you spend anything, rather than after.

Please review our return policy at thesaunarepublic.com/policies/refund-policy. Because controllers are matched to a specific heater and phase, confirm compatibility with us before ordering — it's a five-minute check that avoids a return.

Call (302) 273-0861 or email info@thesaunarepublic.com and we'll be glad to help.