If you source sauna heaters for resale or projects, the Harvia Cilindro line is one of the easiest to move — because it sells on looks and performance. The pillar shape and visible column of stones give it strong shelf appeal, while the large stone load delivers the soft, even steam[^1] your customers expect from a premium heater.
But "Cilindro" is actually a family with two clear jobs: the home Cilindro wins on design and is your volume seller for private saunas, while the Cilindro Pro brings the power for commercial rooms. This guide breaks down both — so you know exactly which models to stock and which to spec for each project.
One Family, Two Markets
The simplest way to plan your stock:
- 🏠 The Style side — Cilindro (residential). For private and light-commercial saunas where appearance matters[^1]. Comes in a classic and an ultra-slim version.
- 🏨 The Power side — Cilindro Pro (commercial). [For spas, hotels, gyms, and clubs that run all day in large rooms](https://www.saunaplace.com/blogs/blogs/best-commercial-sauna-heaters-3-reliable-options-for-gyms-spas-amp-wellness-centers?srsltid=AfmBOoqNzNsVQlrBh8o8-wQRE-K0TyT00qJD6rQLmFDf67EfhgE4KvWq)[^2][^2].
For most distributors, that means stocking the home Cilindro for volume and keeping the Pro range for commercial project orders. The rest is sizing — covered below.
The Style Side: The Home Cilindro
This is the model that closes the sale on appearance. The pillar design, the visible stones, and the flexible steam (mellow from the side, stronger from the top)[^3] make it an easy upsell over basic wall heaters. There are two versions to stock, depending on your customer's space.
Classic Cilindro (PC70 / PC90)
The signature model. A large stone load holds and releases heat evenly[^4] — a strong selling point for the premium home segment.
| Model | Power (kW) | Room size (m³) | Dimensions L×W×H (mm) | Stones (kg) |
|---|---|---|---|---|
| PC70 | 6.8 | 6–10 | 320×320×930 | 80 |
| PC90 | 9.0 | 8–14 | 320×320×930 | 80 |
Available in stainless steel or black, floor-standing or recessed into the bench. Full range on the Harvia Cilindro product page.
Slim Cilindro PC66
Same pillar appeal, smaller footprint. At 255×255 mm it's slimmer than the classic (but taller, at 1340 mm), so it suits tight corners and compact rooms — a useful option for customers with limited space. It also offers both built-in and external control versions[^5].
| Model | Power (kW) | Room size (m³) | Dimensions L×W×H (mm) | Stones (kg) |
|---|---|---|---|---|
| PC66 | 6.6 | 5–9 | 255×255×1340 | 75 |
For space-limited projects that still want the Cilindro look, this is the pick — see the Cilindro PC66 product page.
The Power Side: Cilindro Pro (Commercial)
For large, high-use rooms, appearance isn't enough — the heater has to deliver sustained, reliable heat. That's where the Cilindro Pro fits your commercial project orders.
It keeps the pillar design and big stone load, but scales up: higher output, heavy-duty heating elements built for long operating hours[^3], and enough power for rooms up to 30 m³. In a spa, hotel, gym, or club, it holds temperature and humidity steady even at full capacity[^6] — which means fewer complaints and callbacks for you and your client.
| Model | Power (kW) | Room size (m³) | Dimensions L×W×H (mm) | Stones (kg) |
|---|---|---|---|---|
| PC100E | 10 | 9–16 | 355×355×1300 | 140 |
| PC135E | 13.2 | 11–20 | 355×355×1300 | 140 |
| PC165E | 16.6 | 15–25 | 450×450×1300 | 220 |
| PC200E | 19.8 | 20–30 | 450×450×1300 | 220 |
PC100E and PC135E come in stainless steel or black. All Cilindro Pro models use an external controller. Full specs on the Harvia Cilindro Pro product page.
Which One to Stock or Spec
Match the model to the project type:
| Project type | The right pick |
|---|---|
| Compact home sauna, wants the pillar look | Cilindro PC66 |
| Standard home sauna (up to ~14 m³) | Cilindro PC70 / PC90 |
| Spa, hotel, gym, club, or large high-use sauna | Cilindro Pro (PC100E–PC200E) |
Rule of thumb: residential = Cilindro, commercial = Cilindro Pro. The one thing to get right is sizing — over- or under-powering a room leads to returns and complaints.
Before You Order: A Few Things to Check
- Size it correctly. Under-power a room and it never heats properly; over-power a small room and you waste energy. For the full logic on matching output to room volume, see our sauna heater size guide.
- Controllers. The Cilindro Pro always needs an external controller; the home Cilindro offers built-in or external versions depending on the model. Factor this into your SKUs and pricing.
- Stones aren't included. These are large stone loads — 75–80 kg for home models, up to 220 kg for the Pro. Add them to your order and stock planning.
- Mind the safety distances, especially for the tall pillar shape and the Pro's higher output.
For a wider checklist on vetting products and suppliers, read what to look for when buying a commercial sauna.
Conclusion
The Cilindro line lets you cover two markets with one trusted product family: stock the Cilindro (classic or slim PC66) as your style-driven residential seller, and spec the Cilindro Pro for the commercial projects that demand real power.
Not sure which models fit your next order? Contact us for a quick recommendation and quote — and don't worry about shipping, we handle reliable export logistics to 50+ countries.
[^1]: "NRRI is 'catalyst' for sauna entrepreneurs", https://nrri.umn.edu/news/cedar-and-stone. Thermal-mass discussions of sauna heaters describe the stone bed as a heat reservoir that transfers heat to water during löyly, supporting the claim that larger stone loads can moderate steam production. Evidence role: mechanism; source type: paper. Supports: A large stone load helps produce softer, more even sauna steam.. Scope note: This supports the physical mechanism generally; it does not independently test the Harvia Cilindro line against competing heaters. [^2]: "Best Commercial Sauna Heaters: 3 Reliable Options for Gyms, Spas", https://www.saunaplace.com/blogs/blogs/best-commercial-sauna-heaters-3-reliable-options-for-gyms-spas-amp-wellness-centers?srsltid=AfmBOoqNzNsVQlrBh8o8-wQRE-K0TyT00qJD6rQLmFDf67EfhgE4KvWq. Commercial sauna guidance and manufacturer specifications for higher-output sauna heaters distinguish public or institutional sauna rooms from private residential rooms by larger room volumes and longer operating periods. Evidence role: general_support; source type: institution. Supports: Cilindro Pro-type heaters are suited to large, high-use commercial sauna rooms such as spas, hotels, gyms, and clubs.. Scope note: This supports the commercial-use context generally; facility-specific duty cycles vary by operator and local regulation. [^3]: "Harvia sauna heater stones", https://www.harvia.com/en-US/sauna-heater-stones/. Product instructions for pillar sauna heaters describe different löyly effects depending on whether water is poured onto the side or the top of the stone column, supporting the stated distinction in steam intensity. Evidence role: mechanism; source type: other. Supports: The Cilindro’s stone-column design allows different steam effects depending on where water is applied.. Scope note: The evidence is product-specific and descriptive; it does not quantify perceived steam softness across users. [^4]: "Sauna Design: Thermal masses? - Reddit", https://www.reddit.com/r/Sauna/comments/1awm1ug/sauna_design_thermal_masses/. Heat-transfer literature treats stones and masonry as thermal mass that store heat and release it over time, which supports the general mechanism behind steadier heat output from a larger sauna-stone bed. Evidence role: mechanism; source type: paper. Supports: A larger sauna-stone load can store and release heat more evenly.. Scope note: The source would support the thermodynamic principle, not a measured performance comparison of PC70 or PC90 models. [^5]: "Sauna Heater lineup review - Harvia Cilindro", https://www.youtube.com/watch?v=nZnlYAl4d5I. Cilindro PC66 product documentation distinguishes models with integrated controls from models designed for a separate control unit, supporting the statement that both control configurations exist. Evidence role: case_reference; source type: other. Supports: The Cilindro PC66 is available in built-in-control and external-control versions.. Scope note: The available control configurations may vary by market, voltage, and local electrical approvals. [^6]: "Sauna Heater Guide: Choosing the Right Heater", https://saunasteamcenter.com/sauna-heater-guide/. Commercial sauna design guidance emphasizes matching heater output, stone mass, ventilation, and room volume to maintain sauna temperature and humidity under repeated use, providing contextual support for the need for high-capacity heaters in busy rooms. Evidence role: general_support; source type: institution. Supports: A properly sized commercial sauna heater can help maintain temperature and humidity in high-use rooms.. Scope note: This does not directly prove that every Cilindro Pro installation will maintain stable conditions at full occupancy; actual performance depends on sizing, insulation, ventilation, and door-opening frequency.
