Harvia M3 SL 16.5kW Wood Burning Sauna Stove w/ Exterior Feed | WKM3SL

Name: Harvia M3 SL 16.5kW Wood Burning Sauna Stove w/ Exterior Feed | WKM3SL
Brand: Harvia
SKU: WKM3SL
Price: 1512.00 USD
Availability: InStock

$1,512.00

Sale ~~$1,679.44~~ $1,512.00

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Harvia M3 SL Series 16.5kW Wood Burning Sauna Stove w/ Exterior Feed

The Harvia M3 SL model is designed for people who want to conveniently heat their sauna from another room or outside the building. The opening direction of the door can be changed, making these wood burning heaters even easier to use.

The M3 SL is placed in the sauna room and your firewood is loaded into the fire chamber from the other side of the wall. The M3 SL will give your small or medium sauna great steam. While someone is enjoying the heat in the sauna room another person can be relaxing in the next room while appreciating the glow of the flames behind the cast-iron-framed glass door.

Features

For sauna rooms from 212 to 459 cu. ft.
Heats two rooms
Sauna heater and fireplace-in-one
16.5 kW
66 pound stone capacity (stones sold separately)
Cast-iron-framed glass door
Floor Installation with adjustable feet
Stove pipe connections on top and upper rear
Ash Box
Designed, engineered, and made in Finland
Limited 2-year warranty

Specifications

Specifications:

Kilowatt Rating: 16.5 KW

Firewood Specifications:

Maximum Length: 13.7" (350mm)

Cubic Feet Capacity:

Minimum: 212 CF
Maximum: 459 CF

Minimum Room Height: 75.4" (1915mm)

Weight:

Heater Weight: 99 lbs
Shipping Weight (with Sauna Stones): 187 lbs

Dimensions:

Width: 15.3" (390mm)
Depth: 25" (640mm)
Height: 28" (715mm)

Safety Distances:

Includes

Included:

Sauna Stove
Installation and operation manual
2 year manufacturers warranty

Add-Ons

2 boxes of Harvia stones 66 lbs
Harvia Pipe Adaptor (4.5" Euro -> 6" USA)
Protective Bedding (to protect combustible floor material)
Protective Sheath Panel (reduces safety distance to combustible materials)
Chimney Kits (everything you need to safely exhaust)

Manual

Order Processing: Once your order is placed, you’ll receive a confirmation email. Please allow 1–3 business days for order review and processing. If we need to confirm delivery details or there are any delays, we’ll reach out right away.

How Saunas Ship:

Freight Delivery (Most Saunas): Sauna kits and larger models ship on a pallet via freight carrier and are delivered curbside.
Parcel Shipping (Smaller Items): Accessories or small components may ship via UPS, FedEx, or USPS.

Estimated Delivery Timeline:

Processing: 1–3 business days.
Estimated Ship-Out: Typically ships in 1–2 weeks.
Transit Time: Freight shipments typically take 3–10 business days once shipped.
Delivery Appointment: The carrier will usually contact you to schedule delivery. An adult must be present to receive and inspect the shipment.

Important Delivery Notes:

Curbside Delivery: Freight is delivered to the end of your driveway or loading area. Inside delivery or white-glove service is not included unless arranged in advance.
Measure First: Confirm doorway widths, staircases, and access paths. Sauna kits ship in multiple boxes and/or pallets.
Inspect on Arrival: Before signing, check for visible damage to packaging or pallet.

If There’s Damage: Note it on the delivery receipt (ex: “Damaged – subject to inspection”), take photos, and contact us within 48 hours so we can assist with next steps.

Warranty Coverage:

We are an authorized dealer, and all saunas include the full manufacturer’s warranty. Coverage terms vary by brand and model and are listed on the product page.

What’s Typically Covered:

Manufacturer defects in sauna materials and components
Heaters, controls, and electrical components per manufacturer policy
Replacement parts shipped to you (labor not typically included)

What’s Typically Not Covered:

Shipping damage not noted at delivery
Natural wood variation, knots, or movement over time
Improper installation, misuse, or operation outside manufacturer guidelines
Electrical issues due to incorrect wiring or inadequate power supply

Need Help? If you have questions or need to start a warranty claim, contact us and we’ll help coordinate with the manufacturer to get things resolved as quickly as possible.

Sauna FAQs

Benefits of Sauna

What are the main benefits of using a sauna? +

People use saunas to support relaxation, stress relief, muscle recovery, improved circulation, better sleep, detoxing the body, increasing longevity and many more. Sauna has been studied and proven to be among the most efficacious practices known to man.

Is there a difference in benefits between infrared and traditional saunas? +

Infrared saunas provide radiant heat at lower temperatures, which many users find more comfortable for longer sessions. Traditional saunas heat the air to higher temperatures for a classic, intense sauna experience. Both are popular for wellness use—the best choice depends on personal preference.

How often should I use a sauna, and how long should sessions be? +

Most people use a sauna 3–5 times per week for 15–45 minutes per session. Start shorter and increase gradually, stay hydrated, and listen to your body.

Choosing the Right Sauna

Which sauna type should I choose: infrared, traditional, or hybrid? +

Infrared saunas are known for lower-temperature comfort and convenience. Traditional saunas offer higher heat and a more intense, classic feel. Hybrid saunas combine both options, allowing flexibility based on how you want to use your sauna.

What size sauna do I need? +

One- and two-person saunas are ideal for personal daily use. Larger models offer more room to stretch or share with others. If space allows, many buyers prefer to size up for added comfort.

What’s the difference between full spectrum and far infrared? +

Far infrared focuses on steady, comfortable radiant heat. Full spectrum typically includes near, mid, and far infrared wavelengths for those who want the broadest range of infrared output. Both are effective for general wellness use.

What to Know Before You Order

Will this sauna work in my home or space? +

Most saunas work well in residential spaces as long as you have adequate room, ventilation, and the proper electrical connection. Always review product dimensions and requirements before ordering.

What are the electrical requirements? +

Many smaller infrared saunas use a standard 120V outlet. Larger infrared and traditional models often require a dedicated 240V circuit. Electrical requirements are listed on each product page.

How difficult is assembly and setup? +

Most saunas are designed for straightforward assembly and can be set up in 1–3 hours with two people. Some traditional models may require an electrician if hardwiring is needed.

How much does it cost to run a sauna? +

Operating cost depends on sauna size, heater wattage, usage frequency, and local electricity rates. Most owners find sauna use comparable to running other common household appliances.

Shipping & Warranty

How is a sauna shipped and delivered? +

Saunas typically ship via freight in boxed or crated shipments. The carrier will contact you to schedule a delivery appointment once the shipment reaches your area.

Is shipping included in the price? +

Yes. All saunas include free shipping. The price shown on the product page is the final delivered price.

What warranty comes with my sauna? +

All saunas include the manufacturer’s warranty. Coverage details vary by brand and model and are listed on each product page.

What if my sauna arrives damaged or I need help? +

Inspect your delivery upon arrival and note any visible damage before signing. If you need assistance at any point, contact support@wellnessjunction.com or call 877-791-8083.