8.0 kW for rooms up to 423 cu. ft. Designed and made in Finland, the SW80 powers medium-sized sauna rooms on a standard 240V/1-phase circuit — the most common residential electrical configuration in North America — with no three-phase upgrade required.

Left or right-hand control, your call. The illuminated top-mounted control panel installs on either side of the unit, so you orient the heater to match your bench layout rather than working around a fixed panel position. The Wall also integrates flush into a bench build for a fully recessed installation.

Black steel that holds the look. The matte black steel housing is 701 mm tall and only 259 mm deep — slim enough to mount where a bulkier heater won't fit, and finished in a color that reads as intentional against dark wood, tile, or stone walls.

Air geometry built for even heat. The internal structure is engineered to move air through the stone chamber and back into the room in a consistent circulation pattern, keeping temperatures steady across bench levels rather than piling heat at the ceiling.

Extra-long heating elements, IPX4 rated. Stainless steel heating elements run longer than standard to maximize direct contact with the stone load and smooth out heat transfer. The IPX4 splash rating covers the unit for full sauna and steam use.

Mounting bracket included, stones are separate. The Harvia wall rack sets the correct floor-to-heater safety distance automatically — no measuring guesswork. You'll need 44 lbs of Ø5–10 cm sauna stones (sold separately) before your first session.

• MPN: HSW8U1BUL
• Compatibility: Medium-sized residential sauna rooms
• Part Type: Electric Sauna Heater
• What’s Included: Electric heater, integrated controls, mounting/wall rack, installation instructions
• Model: The Wall SW80
• Voltage: 240V
• Phase: 1 Phase
• Wattage: 8.0 kW
• Dimensions (W × D × H): 17.0" × 10.2" × 27.6"
• Stone Size: Ø2"–4" (Ø5–10 cm)
• Control Type: Manual control switches
• Operation: Illuminated temperature and timer controls
• Installation: Wall-mounted, left- or right-handed installation, optional bench integration
• Remote Use Options: No
• Material: Steel
• Finish: BlackSteel
• Features: Compact Scandinavian design, illuminated operating switches, durable extra-long heating elements, improved air circulation, consistent sauna temperature, quick and easy installation, and optional illuminated wall accessory compatibility
• Safety Features: The included wall rack establishes minimum safety distance to floor
• Storage Temperature: 32°F–122°F (0°C–50°C)
• Applications: Residential sauna heating

• Harvia The Wall DataSheet
• Harvia The Wall SW-80 Electric Sauna Heater HSW800400 Instructions
• Harvia Heater / Element Chart
• Harvia Sauna Stones Update
• Harvia Stone Requirements
• Sizing Your Harvia
• Harvia Warranty