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Harvia M3 SL Wood Burning Sauna Stove (Through-the-Wall Heating)

Description

Product Overview

The Harvia M3 SL Wood Burning Sauna Stove delivers authentic Finnish sauna heat with the added convenience of through-the-wall firewood feeding. Designed for sauna rooms ranging from 159 to 459 cubic feet, this innovative wood stove allows you to load firewood from an adjacent room or outdoors—keeping your sauna clean, quiet, and consistently hot.

With its classic black steel construction and cast-iron framed glass door, the M3 SL blends timeless sauna aesthetics with practical modern engineering. It’s the ideal solution for cabin saunas, backyard builds, and anyone who wants uninterrupted sauna sessions without opening the sauna door.

Key Features

  • Through-the-wall heating design allows firewood loading from outside the sauna

  • Ideal for sauna rooms 159–459 cu. ft.

  • Cast-iron framed glass door for visual warmth and ambiance

  • Adjustable legs for stable installation on uneven floors

  • Reversible door opening for flexible installation layouts

  • Durable galvanized black steel construction for high-heat environments

  • Large stone capacity for rich, traditional steam (löyly)

  • Designed and manufactured in Finland

Specifications

  • Model: Harvia M3 SL (WKM3SL)

  • Fuel Type: Wood

  • Recommended Sauna Size: 159 – 459 cu. ft.

  • Stone Capacity: 90 lbs (sold separately)

  • Maximum Firewood Size: 6" diameter × 13.75" length

  • Smoke Outlet Location: Top

  • Color / Finish: Black Galvanized Metal

  • Weight: 110 lbs

  • Dimensions (W × D × H):

    • 15 3/8" W × 17" D + 8 5/8" collar × 28" H

Why Choose the Harvia M3 SL?

The Harvia M3 SL is perfect for sauna owners who want traditional wood-fired heat with modern convenience. By feeding the fire from outside the sauna, you preserve heat, reduce mess, and enjoy longer, more relaxing sessions. Its compact size, classic design, and Finnish craftsmanship make it a standout choice for both indoor and outdoor sauna builds.

What's Included

  • Harvia M3 SL Wood Burning Sauna Stove

  • Through-the-Wall Fire Chamber

  • Cast-Iron Glass Door

  • Adjustable Legs

  • Installation & Operation Manual

Warranty & Support

  • 2-Year Limited Warranty (Residential Use)

  • 6-Month Limited Warranty (Commercial Use)
    Supported by Harvia’s world-renowned Finnish engineering and quality standards.

Product form

Product Overview The Harvia M3 SL Wood Burning Sauna Stove delivers authentic Finnish sauna heat with the added convenience of... Read more

SKU: 120-WKM3SL
Barcode: 6417659001151

$1,374.00 Excl. VAT

      Call us: +31 123 456 789

    Available on working days between 9:00 am to 6:00 pm

      Email us: Info@Xtra-b2bstore.nl

    Available on working days between 9:00 am to 6:00 pm

    Description

    Product Overview

    The Harvia M3 SL Wood Burning Sauna Stove delivers authentic Finnish sauna heat with the added convenience of through-the-wall firewood feeding. Designed for sauna rooms ranging from 159 to 459 cubic feet, this innovative wood stove allows you to load firewood from an adjacent room or outdoors—keeping your sauna clean, quiet, and consistently hot.

    With its classic black steel construction and cast-iron framed glass door, the M3 SL blends timeless sauna aesthetics with practical modern engineering. It’s the ideal solution for cabin saunas, backyard builds, and anyone who wants uninterrupted sauna sessions without opening the sauna door.

    Key Features

    • Through-the-wall heating design allows firewood loading from outside the sauna

    • Ideal for sauna rooms 159–459 cu. ft.

    • Cast-iron framed glass door for visual warmth and ambiance

    • Adjustable legs for stable installation on uneven floors

    • Reversible door opening for flexible installation layouts

    • Durable galvanized black steel construction for high-heat environments

    • Large stone capacity for rich, traditional steam (löyly)

    • Designed and manufactured in Finland

    Specifications

    • Model: Harvia M3 SL (WKM3SL)

    • Fuel Type: Wood

    • Recommended Sauna Size: 159 – 459 cu. ft.

    • Stone Capacity: 90 lbs (sold separately)

    • Maximum Firewood Size: 6" diameter × 13.75" length

    • Smoke Outlet Location: Top

    • Color / Finish: Black Galvanized Metal

    • Weight: 110 lbs

    • Dimensions (W × D × H):

      • 15 3/8" W × 17" D + 8 5/8" collar × 28" H

    Why Choose the Harvia M3 SL?

    The Harvia M3 SL is perfect for sauna owners who want traditional wood-fired heat with modern convenience. By feeding the fire from outside the sauna, you preserve heat, reduce mess, and enjoy longer, more relaxing sessions. Its compact size, classic design, and Finnish craftsmanship make it a standout choice for both indoor and outdoor sauna builds.

    What's Included

    • Harvia M3 SL Wood Burning Sauna Stove

    • Through-the-Wall Fire Chamber

    • Cast-Iron Glass Door

    • Adjustable Legs

    • Installation & Operation Manual

    Warranty & Support

    • 2-Year Limited Warranty (Residential Use)

    • 6-Month Limited Warranty (Commercial Use)
      Supported by Harvia’s world-renowned Finnish engineering and quality standards.

    FAQs

    Do you offer free shipping?

    Yes! We provide free and fast shipping on all orders within the continental United States.

    How fast will my order arrive?

    Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.

    What’s your return policy?

    We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.

    Can I talk to someone if I have product questions?

    Absolutely! Our in-house product experts are here to help. Call us for personalized advice before or after your purchase.

    Do the products come with a warranty?

    Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.

    Are your products authentic and brand new?

    Yes, we only sell 100% authentic, brand-new products, sourced directly from reputable manufacturers or authorized distributors.

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