SaunaNews
The Sauna Industry's Record of Note
Wood-burning flagship — the commercial wood-fired standard
Cast-iron glass door, thick stone cradle, clean burn. The Legend is what US dealers spec when the customer asks for "the real thing."
The Legend is Harvia's flagship wood-burning line. Legend 150 (WK150LD) is the residential-to-small-commercial unit for rooms up to 460 cubic feet and ships through Almost Heaven as a complete kit (WK150LD + WL100 flue + WHP1500 water heater). The 240 and 240SL scale to larger commercial installs; the SL variant adds an external wood feed so the fire is tended from outside the sauna room. Legend replaced Harvia's older wood-burning catalog in the late 2010s and has become the default for serious wood-fired residential and destination-commercial builds.
On this page
Editorial status
SaunaNews is independent and not affiliated with Harvia. This page is maintained as a product record for news coverage and timeline context, not a sales page.
Last timeline mention: February 12, 2026 · Q4 2025 earnings call — Muurame capacity + West Virginia distribution
Fuel
Wood-burning
Output (150)
~16 kW equivalent
Output (240)
~21 kW equivalent
Room size
210 – 850 cu ft
Stones (150)
~265 lbs
Stones (240)
~450 lbs
| Model | Power | Room size | Stones | Voltage | Notes |
|---|---|---|---|---|---|
| Legend 150 (WK150LD) | ~16 kW equivalent | 210 – 460 cu ft | ~265 lbs | — | Residential / small commercial |
| Legend 240 (WK200LD) | ~21 kW equivalent | 350 – 850 cu ft | ~450 lbs | — | Commercial; fire tended in hot room |
| Legend 240SL | ~21 kW equivalent | 350 – 850 cu ft | ~450 lbs | — | External wood-feed door |
From earnings calls, investor presentations, annual reports, and the Harvia product catalog.
1 of 3 quotes include a direct source link.
“Modern grate structure in the fire chamber results in cleaner and more efficient burning. Cast-iron glass door that lets warm firelight glow through.”
“They are made in America, in the heartlands of America in West Virginia.”
“We have been continuing our systematic investments in increasing capacity to produce more products.”
Some older quotes do not have a direct public URL in this record yet. We keep them for timeline completeness and update links as primary sources are located.
Practical guidance from specialty dealers, commercial installers, and long-term Harvia operators. Use these notes alongside the official manual.
The 240SL adds an external wood-feed door so the fire is tended from outside the hot room. For commercial and public-sauna installations this is meaningful both for operator safety and for keeping ash and wood debris out of the bathing area. Residential builds that want cleaner ash management also benefit. Every commercial wood-fired Harvia spec should be evaluated against the SL variant before ordering the standard 240.
Legend ships with Harvia's native flue collar sized for European specification (4.5"). North American installations typically require a 6" minimum insulated Class A chimney run from collar through roof termination. Use Harvia's flue components and adapters, and budget the full chimney package separately from the heater itself — skipping certified chimney components on a wood-fired heater is both a code violation and a real fire-safety risk.
Wood-fired heaters cycle stones harder than electric. Use the washed sauna stones Harvia specifies in the installation manual. Landscape or decorative rocks from a big-box store often crack and pack down under the thermal cycling a wood-fired heater imposes, cutting steam output and eventually restricting airflow.
Harvia sells both the Legend series and the numbered wood-burning range (Harvia 20, 36, 50). They are distinct products aimed at slightly different commercial use cases. The Harvia 50 at White Mountain Sauna Haus is the top end of the numbered range. Legend 240 and 240SL compete in the large-commercial category too, with different stone-mass and firebox geometry. Talk to a Harvia commercial dealer about which fits the specific room and usage pattern; do not assume the model numbers are directly comparable.
Off-grid and wood-fired residential builds, destination commercial saunas, rural cabins with wood on-property, Almost Heaven Legend 150 kit buyers in the US. SL variant for every commercial wood-fired spec.
This is editorial analysis for context, not a purchase recommendation.
Images sourced from the Harvia Media Bank. Product photography, variant shots, technical diagrams, and installation references straight from Harvia Plc.
Diagram
Diagram
Diagram
Diagram
Diagram
Diagram
DiagramMedia Bank of Harvia. Courtesy of Harvia Plc.
Warranty
2 years
Made in
Muurame, Finland (sold in the US via Almost Heaven kits shipping from Renick, WV)
Launched
Legend line launched mid-2010s; 240SL external-feed variant added later
Last Harvia mention
February 12, 2026
Q4 2025 earnings call — Muurame capacity + West Virginia distribution
Cilindro WKPC16 / WKPC20 · flagship
The 75th anniversary wood-fired pillar. Launched January 2025.
Pro 20 / Pro 36 (WK-series) · commercial
Commercial wood-burning stoves for large public saunas
Cilindro PC series (electric) · flagship
The cylindrical tower electric heater that made Harvia famous
Earnings, investor calendar, stock chart, acquisitions timeline, and the rest of the Harvia product catalog live on our main hub.
Go to Harvia News hubA concise weekly briefing on sauna launches, deals, openings, standards, and market shifts.
No spam. Unsubscribe anytime.
Product data is sourced from Harvia Plc investor materials, earnings call transcripts, harvia.com, and harviagroup.com. Quotes are attributed to specific sources when available. Field notes reflect installer and dealer experience and should be validated against local code and the latest Harvia manuals. SaunaNews is independent and not affiliated with Harvia Plc.
If you spot an error or outdated spec, contact the SaunaNews editorial team so the record can be corrected.