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Description
The Harvia M3 is a 16.5 kW wood-burning sauna stove for smaller wood-heated saunas, from 212 to 459 cubic feet. It is made in Finland, has a graphite black finish with a stainless steel airflow spoiler, and comes with sauna stones.
Build
The stone space holds up to 66 lb of stones, which store heat and give soft, consistent steam. The airflow design circulates heat through the room, and the glass door lets the fire light the sauna.
Stove only or package
This is the stove with stones. The M3 package adds a chimney kit, extension, protective bedding and sheath, and the M3 SL loads through the wall from the next room.
Specifications
- Model: WKM3
- Output: 16.5 kW
- Room volume: 212 to 459 cubic feet
- Stone capacity: up to 66 lb, stones included
- Finish: graphite black with stainless steel airflow spoiler
- Door: glass
- Size: 28 in H x 17 in W x 16 in D, as pictured
- Made in Finland
Related
Browse sauna heaters, or use our sauna size calculator to work out your room volume before choosing an output.
Specifications
| Model | WKM3 |
|---|---|
| Output | 16.5 kW |
| Room volume | 212 to 459 cubic feet |
| Stone capacity | up to 66 lb, stones included |
| Finish | graphite black with stainless steel airflow spoiler |
| Door | glass |
| Size | 28 in H x 17 in W x 16 in D, as pictured |
| Details | Made in Finland |
Specifications from the manufacturer. Dimensions are approximate.
Shipping
We ship to the 48 contiguous U.S. states and Washington, DC. Your shipping cost is calculated at checkout and shown before you pay.
You will get an order confirmation right away and tracking by email when your order ships. Questions about timing for a specific item? Call (945) 280-3243 or email support@restoresuite.com before you order.
Delivery
Large items such as saunas, hot tubs and cold plunge tubs usually ship by freight. The carrier contacts you to schedule delivery. Please check the packaging and note any damage on the delivery receipt before you sign, then tell us within 48 hours so we can resolve it for you.
Before delivery day, measure doorways and hallways along the path to the install spot, and confirm the electrical requirement on the Specifications tab.
Warranty
30-day limited warranty against manufacturing defects
If this item has a manufacturing defect within 30 days of purchase, contact us with your order number and a photo or video of the issue and we will make it right.
Reviews
What delivery looks like
Learn more from Harvia
Manuals and documents
Official Harvia documents for this model. Opens as a PDF.
Why this heater
A compact Finnish 16.5 kW Harvia wood sauna stove for rooms of 212 to 459 cubic feet, with stones.
- 16.5 kW for 212 to 459 cubic feet.
- Holds up to 66 lb of stones, included.
- Glass door and stainless airflow spoiler.
- Made in Finland.
Key specs at a glance
The numbers to check before you order. Full details are on the Specifications tab.
- Stone capacity
- up to 66 lb, stones included
- Size
- 28 in H x 17 in W x 16 in D, as pictured
Before you buy: what to know
Based on the manufacturer's specs, manuals and our research.
- The M3 is a 16.5 kW wood stove for smaller wood-heated saunas, 212 to 459 cu ft. It is 28 x 17 x 16 in and comes with stones; it holds up to 66 lb.
- It does not include a chimney. The M3 package adds a chimney kit, extension, protective bedding and sheath if you want everything matched.
- Clearances to walls, ceiling and benches come from the installation manual, and a wood stove also needs a proper chimney run. Check local code and your insurer before you build around it.
- It usually ships within 1 to 3 business days and arrives in about 5 to 10 business days, so it can be on site before your build is finished.
- Returns are accepted within 30 days with a 25% restocking fee on unused, unopened items. Work out your room volume first, so the output you order is the right one.
Not sure this is the right fit? Ask us or call (945) 280-3243.
Compare Harvia models
Swipe to compare 4 models
| Model |
 Harvia Pro 20 24kW Wood Sauna Stove Package with 22L Water Heater & Chimney
From $5,503.00 |
 Harvia Virta Pro HL Electric Sauna Heater with Xenio CX45 & Power Unit
From $6,299.97 |
 Harvia Pro 20 SL 24.1kW Through-Wall Wood Sauna Stove
$2,199.97 |
 Harvia Club Deluxe Stainless Steel Electric Sauna Heater
From $3,799.97 |
|---|---|---|---|---|
| Stone capacity | – | – | – | – |
Common questions
What size sauna does it heat?
Are stones included?
Does it include a chimney?
Where is it made?
Choosing the right setup can be tricky. We are here to help.
Tell us your space, power and how you plan to use it, and we will help you compare models honestly, including whether this one is the right fit.
Why buy from Restore Suite
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Honest guidance
Free guides and calculators for sizing, running costs and safety, so you can decide with real numbers. See the research
