Wood Burning Sauna Heaters

72 products

Wood-Burning Sauna Heaters — Authentic Heat & Classic Löyly

Wood stoves deliver the most traditional sauna experience: radiant heat, rich steam pours, and that unmistakable wood-fire ambiance. Choose output to match your room volume, plan a safe flue route, and enjoy off-grid reliability indoors or outdoors.

Classic Experience
High stone mass for deep, even warmth and lush steam.
Off-Grid Ready
No electrical elements required for heat output.
Ritual & Ambiance
Fire tending, crackle, and aromatic wood notes.
Indoor/Outdoor
Cabin or backyard barrel/cube installs with proper flue.

Wood-Burning Sauna Heaters — Frequently Asked Questions

How do I size a wood-burning sauna stove?
Match stove output to hot-room volume (m³/ft³). Manufacturers publish sizing charts; increase capacity for glass, stone/brick, or poor insulation.
What chimney/flue do I need?
Use a listed, insulated chimney system per the stove manual. Transition from single-wall connector inside to insulated chimney through ceilings/roofs or walls.
Do I need outside combustion air?
Many stoves support an outside-air kit to stabilize draft in tight rooms or high elevations. Follow the manual and local code.
What clearances are required?
Maintain listed clearances to combustibles around the stove, connector, and chimney. Use approved heat shields and guards when specified.
Can I pour water on the stones?
Yes—wood stoves are designed for löyly. Use clean water only; never add oils directly to stones.
Which wood should I burn?
Seasoned hardwoods (e.g., birch, maple, oak). Avoid painted/treated wood, softwood with heavy resin, or wet fuel that causes creosote.
How long is warm-up time?
Typically 45–90 minutes depending on room size, stone mass, draft, and fuel quality.
Indoor vs. outdoor installation?
Both are common. Outdoor rooms need weather-rated enclosures and proper bases. Indoors require listed chimney systems and strict clearance management.
Maintenance & safety?
Clean ash, inspect stones, and sweep chimneys as needed to prevent creosote buildup. Install smoke/CO alarms per code.
Do I need a permit?
Local jurisdictions often require permits and inspections for solid-fuel appliances. Always follow local code and the manufacturer’s installation manual.

Buying Guide: Choosing a Wood-Burning Sauna Heater

Step 1 — Size by Room Volume

  • Hot-Room Volume: Width × Depth × Height (ft³ or m³). Use brand charts to select kW/BTU class.
  • Adjustments: Add capacity for glass, masonry, or poor insulation/high ceilings.

Step 2 — Stones, Firebox & Draft

  • Stone Mass: Larger baskets store heat for smoother, longer steam pours.
  • Firebox: Look at loading door size, burn time, and wood length compatibility.
  • Draft Control: Damper/air control and an outside-air kit for tight rooms.

Step 3 — Flue Route & Clearances

  • Chimney: Listed insulated chimney with proper supports, flashings, and caps.
  • Clearances: Follow manual for stove, connector, and guard rails; add heat shields if listed.

Tip: If you plan frequent heavy steam pours, prioritize higher stone capacity and stable draft (insulated chimney, straight vertical runs).

Product Lineup

Cozy Heat 18 kW High Output

Robust wood-burning sauna stove for larger rooms; generous stone capacity for rich löyly.

View Cozy Heat 18 kW

Narvi NC24 (≈17 kW) CE Certified

Durable steel build with adjustable feet; excellent steam performance and classic feel.

View Narvi NC24

Key Benefits of Wood Stoves

  • Authentic heat profile with high thermal mass and smooth steam.
  • Off-grid operation and simple mechanical reliability.
  • Ritual experience of fire building and tending.
  • Indoor cabins or outdoor barrel/cube rooms with proper flue routing.

Compare Options

Model Best For Highlights Shop
Cozy Heat 18 kW Larger hot rooms; heavy steam pours High output, generous stone mass, classic firebox View
Narvi NC24 (≈17 kW) Premium build; adjustable installation CE-certified steel body, adjustable feet, smooth löyly View

Space & Placement Guide

Consideration Recommendation
Hearth/Base Non-combustible hearth pad sized to the manual; protect adjacent finishes.
Clearances Maintain listed stove/connector clearances; add listed heat shields if allowed.
Chimney Use listed insulated chimney; minimize offsets, support properly, and flash/seal penetrations.
Combustion Air Install an outside-air kit where required to stabilize draft.
Ventilation Provide sauna room intake/exhaust per enclosure manufacturer for comfort and air quality.

Delivery Path Checklist

  • Measure doorways, halls, and turns against stove carton and chimney component lengths.
  • Stage components near install area; protect floors with mats before unboxing.
  • Verify chimney route, supports, and roof/Wall thimble locations before cutting.

Care, Warranty & Shipping

Empty ash safely, inspect and rotate stones, and sweep chimneys per usage to control creosote. Check door gaskets and fasteners seasonally. See product pages for warranty coverage and current shipping lead times.

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