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Finnish Sauna Builders

Harvia M3 SL WKM3SL Wood Burning Sauna Stove - Finnish Sauna Builders

Harvia M3 SL WKM3SL Wood Burning Sauna Stove - Finnish Sauna Builders

Regular price $1,416.00 USD
Regular price Sale price $1,416.00 USD
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Harvia M3 SL Wood Burning Sauna Stove – Through-the-Wall Heating

Experience the warmth and tradition of a wood-fired sauna with the Harvia M3 SL wood burning sauna stove. Designed for saunas between 159 to 459 cubic feet, this innovative heater lets you enjoy a cozy steam bath while conveniently feeding the fire from an adjacent room or outdoors—perfect for uninterrupted sauna sessions and easy firewood access.

With its through-the-wall fire chamber, you can heat your sauna without opening the sauna door, maintaining optimal heat levels and cleanliness inside. The cast-iron-framed glass door provides a warm view of the fire, creating a calming atmosphere and a truly traditional sauna experience.

Key Features:

  • Through-the-Wall Heating: Add firewood from outside the sauna or another room, keeping the sauna space clean and cozy.
  • Glass Door: Enjoy the ambient glow of the flames through a high-quality, heat-resistant glass panel.
  • Adjustable Legs: Allows secure installation on uneven floors, providing flexibility during setup.
  • Durable Construction: Built from galvanized metal with a sleek black finish, designed to last in high-heat environments.
  • Flexible Door Opening: Door can be adjusted to open from either side, making installation even easier.

Product Specifications:

  • Model: Harvia M3 SL
  • Dimensions: 15 3/8" W x 17" D + 8 5/8" D collar x 28" H
  • Color: Galvanized Metal – Black
  • Weight: 110 lbs
  • Sauna Room Size Compatibility: 159 to 459 cubic feet
  • Stone Capacity: 90 lbs (3 boxes required – stones sold separately)
  • Smoke Outlet Location: Top
  • Maximum Firewood Size: 6" diameter x 13 3/4" long

Perfect For:

  • Cabin saunas
  • Outdoor sauna setups
  • Homeowners seeking traditional wood-burning heaters
  • Users who want to enjoy continuous sauna heat with external firewood access

Resources:

Sauna Heater Sizing Tool

Installation Manual

Click Here to Download Manual

M3 Data Sheet

Chimney Installation Manual


Wellness Disclaimer

Health & Wellness Disclaimer

The products available at The Relaxation Station — including infrared saunas, cold plunge tubs, massage chairs, hot tubs, and sound and vibration beds ; are intended for general wellness, relaxation, and personal recovery use only. They are not medical devices and are not intended to diagnose, treat, cure, or prevent any disease or medical condition.

Individual results may vary. Always consult a qualified healthcare professional before using any wellness product, particularly if you are pregnant, elderly, have a pre-existing medical condition, or are taking prescription medication. Do not use these products as a substitute for professional medical advice, diagnosis, or treatment.

The Relaxation Station makes no therapeutic or medical claims regarding any product sold on this site. Any wellness benefits referenced are based on general use and do not constitute medical endorsement.