Harvia Cilindro Sauna Heaters

What the Cilindro Is and Who It's For

The Cilindro is Harvia's stainless-steel pillar heater — a vertical stone column that holds roughly 200 lbs of rocks in an open, grate-style cage. Most electric sauna heaters cram stones into a flat basket that sits between you and the elements. The Cilindro spreads them top to bottom, which does two practical things: it gives you a much larger thermal mass for prolonged sessions, and it lets steam rise from the entire height of the column instead of one narrow surface.

That's why people who care about löyly quality keep landing on this heater. You can pour water on the side for a soft, plume-style steam, or on the top for a sharper burst — same heater, two different steam characters. With 200 lbs of stone mass, you get the kind of soft, enveloping heat that's normally associated with the much pricier HUUM lineup, at a noticeably lower entry point.

The Cilindro Half configuration — what we carry — mounts against a wall (half-cylinder profile), so you don't lose floor space the way a fully round floor-standing unit would. The whole line runs 240V single-phase, fits residential electrical panels, and ships with an integrated safety sheath that lets you place the heater closer to benches and walls than older Harvia models allowed.

Wattages and Room Sizing

The Cilindro covers a wide sizing range. Rough match-ups based on Harvia's spec sheets and our own install experience:

6kW covers roughly 141–294 cubic feet — small indoor saunas, 1–2 person rooms, or compact bench builds. This is the entry point and pairs well with the built-in dial version for buyers who want analog simplicity. 8kW stretches into 141–431 cubic feet, which is the typical 2–3 person residential indoor sauna. 9kW handles 141–494 cubic feet — the size where most 3–4 person outdoor builds land, and the most popular Cilindro in our catalog. 10.5kW pushes up to 636 cubic feet for larger outdoor rooms or builds with full glass fronts that bleed heat. If you're between sizes, size up — a heater running at 80% capacity outlasts one running at 100% all the time.

For a deeper look at how cubic footage maps to kW across our brands, see the 9kW heater comparison or the 10.5kW options in the same wattage class.

Built-In Dials vs. Xenio Digital Control

The Cilindro comes in two control flavors. The built-in dial version puts a temperature knob and an 8-hour delay timer right on the heater base. No external controller box, no wall hole to drill, no wires running up the sauna wall — wire it like a light fixture and you're done. This is the cleanest install for owner-builders and the cheapest path to a working Cilindro.

The external controller version pairs with a Harvia Xenio digital controller — typically the CX30 or CX45 depending on amperage. Xenio sits outside the sauna on the wall, gives you scheduling, a brighter readout, and accepts the Xenio WiFi module so you can preheat from the MyHarvia app. The downside is more wiring and a separate box to mount. The upside is real if you want WiFi remote start or you're building a sauna where the heater itself isn't easy to reach for tweaks. Browse all Harvia sauna controllers if you need to add one.

Cilindro vs. Kip, Club, and Virta

Within the Harvia electric range, the Cilindro lives between the workhorse models and the commercial-size units. The KIP series is the budget wall-mount — solid, reliable, about 50 lbs of stones, which limits steam quality and session length. Pick KIP if you want a Harvia at the lowest price and you're not chasing premium löyly. The Virta is the premium wall-mount: stainless construction, around 150 lbs of stones, cleaner heat delivery, and the option to step up to a Virta Combi with a built-in steam generator.

The Cilindro out-stones the Virta and matches the design-forward heaters in steam quality, but it's a column shape rather than a box — which is the right call when you want the heater to be a visible centerpiece against a glass wall. The Club series is the commercial floor-standing unit, 10kW–15kW, built for high-usage saunas and oversized residential builds. Most home buyers don't need a Club; if you're looking at a Cilindro 10.5kW for a 500+ cubic foot room, you're probably right at the boundary.

Electrical and Install Considerations

Every Cilindro in this collection runs 240V single-phase. Amperage by size: 6kW pulls roughly 25 amps and needs a 30-amp double-pole breaker, 8kW pulls about 33 amps and needs a 40-amp breaker, 9kW pulls around 37–38 amps and needs a 45-amp breaker, and 10.5kW pulls about 44 amps and needs a 50-amp breaker. These don't plug into outlets — they're hardwired on a dedicated circuit by a licensed electrician. Wire gauge typically runs 8 AWG for the 9kW and 10.5kW, 10 AWG for the smaller units. Read our sauna electrical requirements walkthrough before your electrician shows up so you can have wire size and breaker capacity sorted in advance.

Physically, the Cilindro Half mounts with its flat side against a finished wall. Floor installation is the standard, but the heater can also be partially recessed into a bench using a Harvia embedding flange (we stock these as accessories, including LED-lighting versions). Safety railing is a separate accessory and is worth adding on any install where children or guests might be close to the column.

Stones, Packages, and What Ships in the Box

Individual Cilindro heaters do not include stones — that's a common gotcha. You'll need to add Harvia Olivine Diabase stones (4–6" size for the Cilindro) separately, or buy one of the bundled Harvia electric heater packages, which include the heater, the Xenio controller, the Xenio WiFi module, and the right quantity of stones in one box. The packages typically save 10–20% versus buying components individually and guarantee a compatible set. If you already own a heater and just need replacements, our sauna rock collection stocks Harvia-compatible olivine diabase by the box.

For a full brand-vs-brand breakdown including build quality, warranty, and service network, our HUUM vs. Harvia comparison is the most useful starting point.