The Harvia Legend 150 is a 16kW wood-burning sauna stove for rooms from 212 to 459 cubic feet, in a black steel frame with a cast-iron glass door. No electricity required - the stove is loaded with firewood and fired conventionally, producing the authentic wood-heated sauna experience. The firebox is accessed from inside the sauna room on the standard WK150LD model. The cast-iron glass door lets the warm glow of the fire complement the sauna atmosphere. Sauna stones (264 lbs, 6 boxes of AC3020, 10-15 cm) are required for operation and sold separately. This listing is for the stove only - chimney components, flue adapter, and stones are sourced separately.
Wood-burning sauna - the traditional experience, no electricity
The Harvia Legend 150 delivers what no electric heater can precisely replicate: the authentic wood-burning sauna experience, with the smell of burning wood, the crackle of fire through the glass door, and the particular quality of steam that wood-fired stones produce. The stove heats the sauna room by firing wood directly in the fire chamber - there is no electrical connection, no control panel, no WiFi, and no startup delay. The sauna is ready when the stones reach temperature, which takes longer than an electric heater but produces a sauna atmosphere that many bathers consider categorically different from electric heat. For sauna enthusiasts who want the traditional Finnish wood-heated sauna, the Legend 150 is Harvia's primary offering in this category for the 212-459 cu ft room range.
Combustion air separation - cleaner, more efficient burn and longer lifespan
The Harvia Legend 150 uses an innovative grate structure in the fire chamber that separates combustion air into two streams: a primary air supply to the base of the fire and a secondary air stream directed to the upper part of the fire chamber. This two-stage air delivery improves combustion completeness - more complete burning of wood gases produces less soot, less unburned particulate in the flue gases, and a cleaner, more efficient burn overall. The improved combustion efficiency also reduces carbon buildup on the grate structure and extends the heater's operational lifespan. The result is a stove that burns cleaner and lasts longer than conventional single-air-supply designs.
North American installation - 6" flue adapter required
All Harvia wood-burning sauna stoves use standard European exhaust piping measuring 115mm (4.5") at the flue connection. North American chimney systems use 6" (155mm) diameter flue pipe as standard. A 6" to 4.5" adapter (Harvia WZ115155 or equivalent) is required for every North American installation and must be purchased separately. This adapter is not included with the stove. The Legend 150 supports either a back flue connection or a top flue connection - the installation orientation is selected based on the sauna room layout and chimney routing. Both connection options are covered in the installation manual. A licensed or certified chimney professional is strongly recommended for all wood-burning sauna stove flue installations.
16kW wood-burning sauna stove for rooms from 212 to 459 cubic feet. Black steel frame with cast-iron glass door - see the fire from inside. No electricity required. Innovative two-stage combustion air grate - cleaner burn, longer lifespan. 264 lbs stones required (6 boxes AC3020 10-15 cm, sold separately). Back or top flue connection. Flue: 115mm (4.5") - 6" North American adapter required (sold separately). Adjustable legs. Reduced safety distances. Optional pipe-mounted water heater compatible. 21"W x 28"D x 30"H. 143 lbs. 2-year warranty (consumer use). Designed, engineered, and made in Finland by Harvia.
16 kW 212 to 459 cu ft (6-13 m³) Wood-burning - no electricity required Black steel frame Cast-iron glass door - see the fire Two-stage combustion air grate Cleaner burn - longer lifespan 264 lbs AC3020 stones required (6 boxes, 10-15 cm) Back or top flue connection 115mm flue - 6" adapter required for North America Adjustable legs Reduced safety distances Optional pipe-mounted water heater 21"W x 28"D x 30"H | 143 lbs 2-year warranty (consumer) Made in Finland by Harvia
⚠️ 264 lbs of AC3020 stones (6 boxes, 10-15 cm) required - not included. Stones must be purchased separately. An additional box is recommended - each natural stone is unique in shape and size; extra stones allow selection of the best fit. A 6" (155mm) North American flue adapter is also required separately for installation. A licensed chimney professional is recommended for all flue installations.
ℹ️ Legend 150 (WK150LD) vs Legend 150 SL (WK150LDSL) - firebox access location. The WK150LD (this listing) has the firebox door facing into the sauna room - wood is loaded from inside the sauna. The WK150LDSL is the "SL" (side-loaded or through-wall) variant where the firebox extends through the sauna wall so wood is loaded from outside the sauna - in an adjacent room, changing room, or from outdoors. Both models share the same stove body, stone capacity, room range, and specifications. Choose the WK150LDSL if loading wood from outside the sauna room is preferred or required by the installation layout.
Specifications
Performance
| Power output |
16 kW (approximate) |
| Fuel type |
Wood - no electricity required |
| Room volume |
212 to 459 cu ft (6-13 m³) |
| Stone capacity (maximum) |
264 lbs / 120 kg |
| Stone requirement |
264 lbs - 6 boxes AC3020 (10-15 cm) - sold separately |
Physical
| Dimensions (W x D x H) |
21" x 28" x 30" (530 x 730 x 740 mm) |
| Weight |
143 lbs |
| Frame material |
Black steel |
| Door |
Cast-iron framed glass door |
| Mounting |
Floor-standing with adjustable legs |
| Safety distances |
Reduced vs standard wood stoves - see Safety Distances document |
Combustion and air
| Combustion air system |
Two-stage separation grate - primary and secondary air |
| Secondary air |
Directed to upper fire chamber - cleaner, more efficient burn |
| Benefit |
Less soot, longer grate lifespan, more complete combustion |
Flue and installation
| Flue connection diameter |
115mm (4.5") - standard European |
| North American adapter |
6" (155mm) adapter required - sold separately |
| Flue connection options |
Back or top - selected during installation |
| Firebox access |
From inside the sauna room (WK150LD standard model) |
| Legs |
Adjustable for levelling |
Optional accessories (sold separately)
| North American flue adapter |
Harvia WZ115155 (6" / 155mm adapter) |
| Pipe-mounted water heater |
Harvia WL200 or WL300 |
| Flue pipe extensions |
Harvia WZ11520, WZ11550, WZ115100 |
| Through-wall firebox |
WK150LDSL for outside-room wood loading |
Warranty and origin
| Warranty |
2 years (consumer use) |
| Origin |
Designed, engineered, and made in Finland by Harvia |
| SKU |
WK150LD |
What's included
Harvia Legend 150 wood-burning sauna stove - black steel frame with cast-iron glass door
Adjustable legs
Installation and operation manual
Required (not included): 264 lbs AC3020 sauna stones - 6 boxes, 10-15 cm (an additional box recommended); 6" North American flue adapter (Harvia WZ115155 recommended). Optional accessories (sold separately): Pipe-mounted water heater (WL200 or WL300); additional flue pipe components (WZ11520, WZ11550, WZ115100). A licensed chimney professional is recommended for all flue installations.
Why the Harvia Legend 150 stands out
Wood-burning - the authentic sauna experience
The Legend 150 produces the traditional Finnish wood-fired sauna experience that no electric heater replicates: the smell of burning wood, the sound of crackling fire through the glass door, and the particular quality of radiant heat and steam that only wood-heated stones deliver. For sauna enthusiasts for whom wood-burning is not a feature but the entire point of the sauna, the Legend 150 is the correctly sized Harvia stove for rooms from 212 to 459 cubic feet.
Cast-iron glass door - fire visible from inside
The cast-iron framed glass door is a defining aesthetic feature of the Legend Series. The fire is visible through the glass from inside the sauna room throughout the session - the warm glow of the fire complements the sauna atmosphere in a way that an opaque metal door cannot. The glass door also allows the bather to monitor the fire state without opening the door. Cast-iron framing provides the thermal mass and durability required at the high temperatures of a wood-burning firebox.
Two-stage combustion air grate
The innovative grate structure separates combustion air into primary and secondary streams, directing secondary air to the upper fire chamber. This more complete combustion of wood gases reduces soot formation, improves burning efficiency from the available wood, and extends the grate structure's service life by reducing carbon buildup. Over many sauna sessions through the life of the stove, cleaner and more efficient combustion translates to less chimney cleaning frequency and longer grate longevity.
Reduced safety distances - more flexible bench placement
The Legend 150's design incorporates smaller than standard safety distances from the side and back surfaces to combustible materials. In practice, this means the sauna benches can be positioned closer to the stove than with conventional wood-burning stoves - giving designers and builders more flexibility in bench layout within the 212-459 cu ft room range. Confirm the specific safety distances from the Safety Distances document before finalising bench position and construction.
264 lbs of AC3020 stones - large thermal mass
The 264-lb maximum stone capacity with 10-15 cm AC3020 stones provides substantial thermal mass that continues radiating heat after the fire dies down. This is a characteristic advantage of wood-heated saunas: the large stone mass holds heat for extended sessions without continuous firing. Once the stones are fully heated, the sauna maintains temperature through the stored heat in the stone mass, producing a softer, more sustained heat profile than smaller stone loads.
Optional pipe-mounted water heater
The Legend 150 is compatible with Harvia pipe-mounted water heaters (WL200 and WL300 series, sold separately) that mount onto the stove's flue pipe and use the waste heat from the flue gases to heat a water reservoir. In a sauna building that relies on wood-fired heat, a pipe-mounted water heater provides hot water for washing and showering without a separate water heating system - drawing energy from combustion gases that would otherwise be exhausted unused.
About Harvia
Made in Finland - Wood-Burning - Legend Series
Harvia Legend 150. 16kW wood-burning. 212-459 cu ft. Cast-iron glass door. Two-stage combustion air.
Harvia is a Finnish sauna and spa company with over 70 years of manufacturing history, established in 1950. The Legend 150 is Harvia's 16kW wood-burning sauna stove for rooms from 212 to 459 cubic feet - a floor-standing stove with a black steel frame, cast-iron glass door, innovative two-stage combustion air grate for cleaner burning, and 264-lb stone capacity. Designed, engineered, and made in Finland. 264 lbs of AC3020 stones (6 boxes) and a 6" North American flue adapter are required and sold separately. We are an authorized Harvia dealer.
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16kW wood-burning - 212-459 cu ft - no electricity required
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Cast-iron glass door - fire visible from inside the sauna
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Two-stage combustion air grate - cleaner burn, longer lifespan
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264 lbs AC3020 stones (6 boxes) required - sold separately
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6" North American flue adapter required - sold separately
Legend 150 WK150LD vs Legend 150 SL WK150LDSL
Legend 150 (WK150LD) vs Legend 150 SL (WK150LDSL) - firebox access direction
The Harvia Legend 150 is available in two firebox access configurations. WK150LD (this listing): standard model - the firebox door faces into the sauna room and wood is loaded from inside the sauna during the session. WK150LDSL: SL model - the firebox extends through the sauna wall so wood is loaded from outside the sauna room, from an adjacent changing room, utility space, or from outdoors. Both the WK150LD and WK150LDSL share the same stove body, stone capacity (264 lbs), room coverage (212-459 cu ft), dimensions (21"W x 28"D x 30"H), weight (143 lbs), glass door, two-stage combustion air grate, and all other specifications. The only difference is the firebox access direction. If the sauna layout or user preference calls for loading wood without entering or disturbing the sauna room, the WK150LDSL is the appropriate choice. If loading from inside the sauna is acceptable or preferred, the WK150LD (this listing) is the standard model. Both require the same 6" North American flue adapter and AC3020 stones, both sold separately.
Manuals and Documents
Warranty
2-year limited warranty (consumer use)
The Harvia Legend 150 is covered by Harvia's 2-year limited warranty from the date of purchase for consumer use. The warranty covers defects in manufacturing and materials under normal use conditions. The warranty does not cover damage caused by improper installation, use of incorrect stone type or size, operating without the required stone load, failure to follow the installation and operating guidelines, or damage from inadequate chimney maintenance (soot fires, blocked flues). A licensed or certified chimney professional is recommended for all flue installation and regular chimney sweep maintenance. Proof of purchase from an authorized Harvia dealer is required for warranty claims. We are an authorized Harvia dealer.
