Harvia Xenio Controls

What a Harvia Xenio Control Unit Actually Is

A Xenio is a digital control unit — a wall-mounted touchpad that runs the heater. It reads the room temperature off a sensor, fires the elements up to your set point, holds it there, and shuts the heater off on a timer. On the WiFi versions it also talks to the MyHarvia app, so you can preheat the room from your phone on the drive home instead of walking into a cold box and waiting 35 minutes.

Here's the part that trips people up: a lot of Harvia electric heaters ship without any controls on the unit itself. The heater is just the cage, the elements, and the stones. The Xenio is the brain, and it's sold as a separate kit so the same heater can run with a basic dial, a digital panel, or full app control depending on what you bolt onto the wall. That's what this page is for — picking the right Xenio for the Harvia heater you're running.

Why Some Harvia Heaters Need an External Controller — and Some Don't

Harvia builds heaters two ways. The smaller wall-mount heaters in the Harvia KIP series can come with built-in time and temperature controls — a knob and a timer right on the heater. Those don't need a Xenio at all; you set it at the heater and go.

The bigger and feature-heavier lines are different. The Harvia Virta and Harvia Cilindro heaters, and the KIP models ordered without an onboard panel, are run by an external control unit. There's a practical reason for it: a separate digital controller switches more load cleanly, mounts where it's easy to reach (outside the hot room, usually by the door), and adds scheduling and WiFi that you can't fit on a knob. So the question isn't whether you want a controller — if your heater doesn't have one built in, you need one to turn it on. The question is which Xenio.

The Xenio Lineup, and Which Heaters Each One Runs

Xenio CX170 — for KIP heaters

The Harvia Xenio CX170 is the digital control kit built for the KIP line. It ships as a package: the control panel, the power unit that the heater wires into, and the temperature/humidity sensor. It includes WiFi, so once it's installed you run the heater from the wall panel or from the MyHarvia app. This is the upgrade KIP buyers choose when they'd rather have a digital touchpad and phone control than the basic built-in knob.

Xenio CX30 / CX45 — for Virta, Cilindro, Club and Spirit

The Xenio CX30 / CX45 control kit is the workhorse unit for the larger Harvia families — Virta, Cilindro, Club, and Spirit heaters. Same idea: digital panel, power unit, sensor, and WiFi for the MyHarvia app. The CX30 and CX45 differ by the heater wattage they're rated to switch, which is why this kit spans single-phase and three-phase wiring options. Match the unit to your heater's size and phase — when in doubt, send us the heater model and we'll confirm the right one before you order.

Xenio CX30C — the Combi (steam) controller

A combi heater is a Harvia heater with a built-in water reservoir that makes steam alongside the dry heat — the Virta Combi is the main one. Steam needs its own control, so a combi heater takes a combi-capable unit: the Xenio CX30C Virta Combi control kit. It runs the heater the same way the standard Xenio does, but adds humidity control — you set both temperature and steam from the panel, and the sensor kit reads both. If you've got a Combi heater, this is the controller you need; a standard CX30/45 won't run the steamer side.

Xenio WiFi Remote and the LTY45 Power Extension

Two supporting parts round out the collection. The Xenio WiFi remote is the connectivity accessory that ties the control unit into the MyHarvia app for remote preheat and scheduling. The Xenio LTY45 power extension unit is a stainless-steel contactor enclosure that sits between a CX30/CX45 control and a higher-output heater to handle the extra load — the same role a contactor box plays on any large electric heater. If your heater is at the top of the Virta or Cilindro range, your electrician will tell you whether the LTY45 is part of the wiring.

The WiFi and MyHarvia App Benefit

The single biggest friction point with any sauna is the warm-up. A Harvia electric heater takes 30–45 minutes to come up to temperature, and that wait is the difference between a sauna you use twice a week and one you use every day. WiFi on the Xenio fixes it: through the MyHarvia app you preheat the room from your phone before you leave work, set recurring schedules (every weekday at 6am, say), and check the room status from anywhere. You walk in and it's already at temperature.

The CX-series Xenio kits on this page include WiFi, and the standalone WiFi remote covers app control where you're adding it to an existing setup. If app control is the whole reason you're here, our WiFi-enabled heater collection gathers every heater that pairs with a connected controller in one place.

How to Match the Right Xenio to Your Heater

Three questions get you to the right unit. First: what heater do you have? KIP points you at the CX170; Virta, Cilindro, Club, or Spirit point you at the CX30/CX45. Second: does your heater make steam? If it's a Combi, you need the CX30C, full stop — the steam side won't run on anything else. Third: what's the heater's wattage and phase? That decides between CX30 and CX45 and whether the LTY45 power extension is part of the install.

If that feels like a lot to get right, it's the kind of thing we sort out every day — message us your exact heater model and we'll confirm the matching Xenio and any extension unit before you spend a dollar. You can also browse the full Harvia heater range to see which control each line takes, or skip the à-la-carte matching entirely with a Harvia heater package that bundles the heater, the right Xenio, and the stones in one order.

Installation: a Licensed Electrician Wires the Control Unit

This is not a plug-it-in part. The Xenio power unit is wired into the heater's circuit — the control panel, the power unit, the sensor, and the run back to the heater are all part of the electrical install, done at the same time as the heater's dedicated 240V circuit. The control kit ships with its sensor and mounting hardware, but the wiring is a licensed electrician's job, and on combi units there's a water line for the steamer to account for as well.

Our sauna electrical requirements guide covers the rough-in details so your electrician has what they need before they show up. Always consult a licensed electrician before any electrical work — the breaker size, wire gauge, and circuit specifics depend on your heater's wattage and your local code, and requirements vary by jurisdiction. The information here is general reference, not a substitute for a professional assessment of your install.

Ordering From Topture

Topture is an authorized Harvia dealer, which matters for the warranty — Harvia's coverage on the control unit is valid through authorized dealers, so buying here keeps it intact. We ship free, the team's around if you hit a question matching the Xenio to your heater or during install, and if you'd rather not source parts separately, the packaged heater bundles take the guesswork out. If you're piecing it together yourself, plan on the heater, the matching Xenio control kit, and sauna stones as your minimum order — plus the LTY45 if your electrician flags it for a high-output heater.