Harvia Xenio CX30C Sauna Control Unit
Choose options
- Description
- What's Included
- Required to Operate
- Product Specifications
- Compatible Heaters
- Installation & Use Notes
- FAQs
- Downloads
The Harvia Xenio CX30C is a Wi-Fi digital sauna control unit for Harvia heaters up to 12.7 kW, supplied for 240V single-phase or 208V three-phase. The panel can be mounted inside the sauna or outside it. It is sold separately from the heater and is required for heaters supplied without built-in controls.
The Xenio CX30C is the combi version: it runs the heating elements and the integrated steamer on a Harvia Combi heater, with independent temperature and humidity setpoints. It cannot be used with a dry heater, and a dry-heater control cannot run a Combi.
- For up to 12.7kW heaters Works with Virta Combi Series WiFi connectivity for control and monitoring
- Touch control panel, surface-mounted or flush-embedded
- Wi-Fi for remote start and monitoring from the MyHarvia app
- Controls heater, lighting and fan from one panel
Digital Control Panel, Contactor Box, Humidity Sensor, Power Unit, Temperature Sensor, Installation and Operation Manual
A Harvia sauna heater supplied without built-in controls, and a dedicated circuit installed by a licensed electrician.
| Harvia Part Number | CX30C-U1-XW / CX30C-U3-XW |
| Maximum Load | 12.7 kW / 10.8 kW |
| Voltage | 208 / 240 |
| Phase | 1 / 3 |
| Temperature Range | 194°F |
| Maximum Session Time | 60 MINUTES |
| Mountable Inside the Sauna | YES |
| Hardwired | YES |
| Color / Finish | Black |
| Material | Plastic |
| Dimensions | 3.4"W (86mm) x 1"D (25mm)x 4.4"H (111mm) |
| Weight | 0.4 lbs |
| Installation | Wall-Mount or Surface Embedded |
| Certification | ETL |
| Warranty | 2 years (consumer use, +1 year if registered with Harvia); 2 years (commercial use) |
| Ships | Parcel |
| Made In | Finland |
Harvia lists the Xenio CX30C as the control unit for these heaters.
Virta CombiHarvia Virta Combi HL110SA, Harvia Virta Combi HL80SA, Harvia Virta Combi HL90SA
Heaters with controls built into the body — Harvia KIP-B, The Wall, Vega Compact and the Cilindro PC range — do not take a separate control unit.
- The power unit is hardwired between the supply and the heater by a licensed electrician; the panel and the temperature sensor are wired back to it to the lengths the installation manual gives.
- The temperature sensor mounts inside the hot room, on the wall above the heater, at the height the manual specifies. Sensor position changes how the room behaves more than any setting on the panel does.
Which Harvia heaters does the Xenio CX30C work with?
Harvia lists it for the Virta Combi series. Heaters with controls built into the body do not take a separate control unit.
Can the Xenio CX30C be mounted inside the sauna?
Yes — the panel is rated for installation inside the hot room as well as outside it. Most people still mount it outside, because the point of a separate control is starting the sauna before you walk in.
Will the Xenio CX30C run a standard dry heater?
No. This is the Combi version — it controls a heater and its integrated steamer with separate temperature and humidity setpoints. A Combi heater needs a Combi control, and a dry heater needs the standard version.
Get the deals first
Exclusive offers, early access to sales, and seasonal patio tips — straight to your inbox.
If you find the same item for less from an authorized retailer at the time of purchase, we’ll match the price. Just send us the details — we’ll make it right.
Curated for Quality
We thoughtfully select every item in our store based on quality materials, trusted manufacturing, and outdoor durability standards — so you can shop with confidence.
Most orders ship free within the continental United States. Select products may require a shipping charge, which will be shown at checkout.
Our dedicated team is here to support you every step of the way. From product selection to post-purchase help, we’re proud to offer friendly, reliable service you can count on.