Harvia vs SAWO? The short answer: both are quality Finnish brands, and a correctly sized heater from either will serve you well for years. If you want a wood burning stove, go with Harvia; if you want a tower heater with a big stone load or one built into the bench, look closely at SAWO. Otherwise the choice comes down to room volume, design and how you want to control it. Barrel Sauna sells and installs both brands, so this comparison doesn’t lean either way.
The two brands in brief
Harvia is one of the best-known Finnish makers of sauna heaters and equipment. Its range is very broad: electric heaters, wood stoves, combi heaters with a steam function, steam generators, infrared panels and control units.
SAWO is also Finnish, and its core strength is electric heaters. The design is distinctive: cylindrical towers, wall-mounted units and stone-clad bodies. SAWO also makes combi heaters, steam generators and its own control panels.
Harvia: key ranges
| Series | Type | Best for |
|---|---|---|
| Legend | Electric and wood | Large stone mass in a black steel frame; rustic look and gentle steam |
| Cilindro | Electric and wood | Pillar heater with a generous stone load, corner version available; mid-size saunas |
| Vega | Electric | Compact wall heater with knobs on the body; suits very small rooms (from about 1.3 m³) |
| KIP | Electric | Simple, reliable wall heater with built-in or separate controls |
| M3 | Wood | Clean, sculptural stove with a cast-iron glass door; small and mid-size outdoor saunas |
| Linear | Wood | Large glass door, some versions with a water tank; 8–22 m³ range |
| Forte | Electric | Keeps stones hot under an insulated lid, so the sauna is ready in minutes |
Harvia’s control panels (Xenio, Xenio WiFi, Fenix) work with many of its electric heaters; the Wi-Fi version lets you run the sauna from your phone. Some Legend and Cilindro models ship with a digital or Wi-Fi panel included.
SAWO: key ranges
| Series | Type | Best for |
|---|---|---|
| Tower | Electric | Tall cylindrical tower that can stand mid-room or be built into a bench; a removable stone spacer lets you choose faster heating or more steam |
| Nordex | Electric / combi | Compact wall heater; “NB” has built-in controls, “NS” uses a separate panel. One of the most popular entry ranges |
| Scandia | Electric / combi | Classic wall heater for small and mid-size saunas |
| Krios | Electric | Wall heater with an extra-large stone container (up to 50 kg) for rich, long-lasting steam |
| Cumulus | Electric | Stone-forward wall heater with a natural look and soft, even heat |
SAWO heaters are controlled with Saunova and Innova panels. Ranges such as Tower, Aries and Heaterking also offer high-output options for large saunas and hotels.
Side-by-side: what to compare
| Criterion | Harvia | SAWO |
|---|---|---|
| Wood burning stoves | Wide choice (Legend, M3, Linear, Pro and more) | Mostly electric heaters in our catalogue |
| Small saunas (2–6 m³) | Vega, KIP — simple and compact | Nordex, Scandia — simple and compact |
| Heavy stone load | Legend, Cilindro | Krios, Tower |
| Built into the bench | Selected models | Tower is especially well suited |
| Design | Rustic black steel, pillar shapes | Stainless steel towers, stone-clad bodies |
| Wi-Fi control | Xenio WiFi, included with some models | Saunova / Innova panels |
| Combi (steam function) | Virta Combi and others | Nordex, Scandia, Savonia Combi |
As you can see, there’s no “bad” brand here — the difference is in your needs and taste.
How to choose: five questions
- Wood or electric? If you want wood, Harvia is the easiest route. For electric, both brands are strong.
- What’s the room volume? Calculate m³ first (with corrections for glass and stone), then look at series whose range covers it.
- What kind of steam? For soft, full steam choose a large stone mass: Harvia Legend/Cilindro or SAWO Krios/Tower.
- Where will the heater go? On a wall, in a corner, mid-room or inside the bench? SAWO Tower shines mid-room and in benches; Harvia Cilindro Corner suits corners.
- How will you control it? If knobs are enough — Vega/KIP or Nordex/Scandia NB. If you want a timer, display and Wi-Fi — a version with a separate panel.
How Barrel Sauna works with both
We sell and install Harvia and SAWO heaters in both indoor saunas and outdoor models. The heater is chosen together with the sauna project, taking into account volume, insulation, glass surfaces, electrical supply and the steam you want. Technical data for every model (kW, m³, stone capacity, control type) is in our sauna heaters catalogue. Stones, buckets, ladles, thermometers and other extras are in the accessories section.
FAQ
Is Harvia better than SAWO?
There’s no universal “better”. Harvia wins on range breadth and wood stoves; SAWO stands out for its tower designs and electric heaters with large stone capacity. The right choice is the one that fits your sauna.
Can I use a SAWO control panel with a Harvia heater?
As a rule, each brand’s heaters are designed for that brand’s control system. Compatibility must be checked for the specific model in the manufacturer’s documentation.
Which is better for a small home sauna?
For 2–6 m³, Harvia Vega/KIP and SAWO Nordex/Scandia are the most common choices. Both are compact and easy to operate.
Which should I choose for an outdoor sauna?
If you want wood — Harvia (M3, Legend, Linear). For electric, models from either brand work, sized to the room volume.
Does Barrel Sauna install the heater?
Yes. We sell and install Harvia and SAWO heaters and select the output and controls to suit the project.
Let’s pick your heater together
Tell us your sauna’s size and what you want (wood or electric, type of steam, controls). We’ll compare specific Harvia and SAWO models and recommend the best fit. Message us on WhatsApp for a free consultation.
