Feature Review
Harvia Cilindro review: why a stone-packed tower makes better steam
Harvia's Cilindro makes better steam than a box heater because stone surrounds its elements on every side. We checked what the 8 kW PC-series needs to run.
By Adam Bognar, Editor
Harvia's Cilindro packs stone around its elements on every side in a slim column. That extra stone banks heat for every ladle of water to draw on. We read Harvia's specifications for the 8 kW PC-series to see how the geometry changes the steam and what room it suits. Then we listed the wiring and safety work you'll need to price in before the looks win you over.
The tower shape gets more stone to steam temperature
Most sauna heaters are boxes, with the heating elements at the bottom and a tray of stones resting on top. Only the stones directly above the elements get properly hot, so a ladle of water gets a quick hiss that fades. The Cilindro is a tall cylinder, and its elements run up the core with stones packed around them on every side.
Far more of the Cilindro's stone reaches löyly temperature, and hot stone mass does more for steam quality than anything else in a heater. Ladle water on and the wave comes back bigger and more even. All that stone stores heat too, so the heater cycles less through a long session.
Where to buy
Harvia Heaters & Stoves
Harvia Cilindro PC80E 8kW Electric Sauna Heater
“Stone packed around the elements lets this tower make about as much steam as a home electric heater can.”
The 8 kW Cilindro fits a mid-size room
Harvia rates its heaters by room volume, and the 8 kW Cilindro sits in the mid-size band of roughly 7–13 m³. That covers a typical two-to-four-person sauna. A heater too small for the room struggles to hold temperature on a cold day. Go too big and you'll cook the air without the stone mass to make good steam.
Poorly insulated rooms and walls with lots of glass push you toward the top of the range, and so does an exposed outdoor build. If you aren't sure which kilowatt rating fits your build, our heater-sizing guide walks through the calculation with a calculator. Run it before you buy the heater.
The Cilindro needs a controller and an electrician before it runs
The PC-series Cilindro is an external-control heater, and that's what the E in its name means. It needs a separate Harvia control unit such as a Xenio or a Griffin-class controller wired in, since there's no onboard dial. Put the controller in your budget from the start. The 8 kW heater also needs its own dedicated 240V circuit, and a licensed electrician has to hardwire it to code. It won't plug into an outlet.
The Cilindro's tall column of stones gets hot on the outside, and we strongly recommend a guard rail to keep anyone from stumbling into it. Harvia makes a matching rail.
Who should buy the Cilindro?
Buy the 8 kW Cilindro if your room lands in its size band and you want the best steam a domestic electric heater can reasonably give. Liking the look of the column helps too. At around $1,270 before the control unit and rail, the heater costs more than a basic box heater. Almost all of that extra money pays for the stone mass and the geometry that puts it to work.
We'd pick the Cilindro for most home traditional saunas. Skip it only for a tiny room, where a compact box heater costs less and does enough, or for a room so large that you'll want a bigger commercial unit.
Where to buy
Harvia Heaters & Stoves
Harvia Cilindro PC80E 8kW Electric Sauna Heater
“Stone packed around the elements lets this tower make about as much steam as a home electric heater can.”
Common questions
- Why is the Harvia Cilindro better than a normal sauna heater?
- The Harvia Cilindro's cylindrical shape wraps stones around the elements on every side, so far more stone reaches steam temperature than in a normal heater with its stones stacked on top. More hot stone mass gives bigger, longer-lasting löyly when you throw water. Good löyly is the main thing that makes a sauna great.
- What size room does the 8 kW Cilindro heat?
- The 8 kW Cilindro heats roughly a 7–13 m³ room, which is a typical two-to-four-person sauna. Push toward the smaller end for a poorly insulated or glass-heavy room, and for an outdoor build. Size by your room's volume with the full method in our heater-sizing guide.
- Does the Cilindro PC80E need a separate controller?
- Yes. The E in PC80E denotes external control, so the Cilindro needs a separate Harvia control unit such as a Xenio or Griffin wired in by an electrician. Buy the controller separately and count it in your budget, since the heater can't run without it.
- Can I install a Cilindro myself?
- Partly. You can mount the Cilindro and load its stones yourself. An 8 kW heater is a hardwired 240V appliance on a dedicated circuit, so a licensed electrician must connect it to code. We also strongly recommend a protective guard rail around the hot column.
Sources
- 1.Cardiovascular and Other Health Benefits of Sauna Bathing: A Review of the Evidence. Mayo Clinic Proceedings, 2018.
- 2.NFPA 70: National Electrical Code (NEC). National Fire Protection Association, 2023.
- 3.Electric Power Monthly: Average Price of Electricity to Ultimate Customers. U.S. Energy Information Administration, 2025.
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