Harvia The Wall SW80 8 kW Electric Sauna Heater with Built-In Controls
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The Harvia The Wall SW80 is an 8 kW wall-mounted electric sauna heater for rooms of 176–423 adjusted cubic feet running on 240VAC 1PH. It takes 44 lb of 5-10cm sauna stones (sold separately). Controls are built into the heater, so no separate control unit is required.
The Wall is Harvia's answer to the narrow sauna. At 10.1 in deep it projects less into the room than any other heater in the range, which matters when you are trying to keep a walkway clear in a 4-ft-wide room or fit a heater behind a bench return. The controls are built into the heater itself, so there is no second wall box and no separate control-unit purchase.
- Black Stainless Steel housing
- Direct rock-to-heating element contact
- Option to choose right or left-handed installation
- Durable stricter and technical features extend the heater's lifespan
- Smart design enables air circulation and steady warmth
Sauna Heater, Installation and Operation Manual
Controls are built into this heater. No separate control unit is needed, and none can be added.
These are not included with the heater. You need them before the sauna will run.
Sauna Stones44 lb — Harvia specifies 1 × 44 lb boxes of Harvia AC3000. Never run the unit empty. Electrical
A dedicated hardwired circuit, installed by a licensed electrician.
| Harvia Part Number | HSW8U1BUL |
| Power Output | 8 kW |
| Sauna Room Volume | 176–423 adjusted cu ft |
| Stone Capacity | 44 lbs (20 kg) |
| Recommended Stones | Harvia AC3000 |
| Maximum Temperature | 194 °F (90 °C) |
| Color / Finish | Graphite Black |
| Material | Steel |
| Dimensions (W × D × H) | 16.9" (429mm) × 10.1" (257mm) × 27.5" (700mm) |
| Weight (Empty) | 32.5 lbs (14.7 kg) |
| Weight Loaded with Stones | approx. 76 lbs |
| Installation | Wall Mount |
| Controls | Built into the heater |
| Certification | ETL |
| Warranty | 2 years (consumer use, +1 year if registered with Harvia); 2 years (commercial use) |
| Ships | Parcel |
| Made In | Finland |
| Part Number | Power | Voltage | Phase | Rated Amps | Line Fuse |
|---|---|---|---|---|---|
| HSW8U1BUL | 8 kW | 240VAC | 1PH | 25 A | 40A |
Hardwired on a dedicated circuit. Not a plug-in appliance. Who Installs It
A licensed electrician sizes the breaker and conductors from the nameplate and installation manual under the current NEC.
The Harvia The Wall SW80 is rated for 176–423 adjusted cubic feet.
Adjusted cubic feet = width × depth × height in feet, plus 45 cu ft for every square foot of glass, tile, concrete or stone, plus 15 cu ft for every square foot of exposed log wall. A 6 × 7 ft room with a 7 ft ceiling is 294 raw cu ft — add a full-glass door and it becomes 834. Always size to the adjusted number.
| Model | Output | Room Volume | Stones | Rated Amps |
|---|---|---|---|---|
| The Wall SW60 | 6 kW | 141–282 cu ft | 44 lbs | 25 |
| The Wall SWS60 | 6 kW | 141–282 cu ft | 44 lbs | 25 |
| The Wall SW80 | 8 kW | 176–423 cu ft | 44 lbs | 25 |
| The Wall SWS80 | 8 kW | 176–423 cu ft | 44 lbs | 25 |
- Mount to the clearances given in the installation manual. The temperature sensor goes on the wall above the heater, at the height the manual specifies.
- Load the stones loosely by hand, largest at the bottom, so air moves freely between them. Never run the heater with an empty or tightly packed stone space.
- Pour small ladlefuls of clean water onto the hot stones only — never onto the body, elements or controls. Mix any scented oil into the bucket first.
- Re-stack the stones once a year and replace any that have cracked or crumbled.
- Stones ship separately on their own freight because of the weight.
Does the Harvia The Wall SW80 include a control unit?
Yes. The thermostat and timer are built into the heater body, so there is nothing else to buy to run it. The trade-off is that you cannot start it from outside the room or from a phone.
Can the Harvia The Wall SW80 be plugged into a normal outlet?
No. It is a hardwired appliance on its own dedicated circuit, rated at 25 A. A licensed electrician sizes the breaker and conductors from the nameplate and installation manual.
How long does the Harvia The Wall SW80 take to heat up?
Harvia does not publish a figure. A correctly sized, well-insulated room is usually ready in 30 to 60 minutes. Consistently longer than an hour normally means the heater is undersized for the room's adjusted cubic feet.
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