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Harvia M Series Wood Stove Sauna Heater with Exterior Feed

Harvia

WKM3SL

Authorized Dealer

Warranty Included

Harvia M Series Wood Stove Sauna Heater with Exterior Feed

Harvia

WKM3SL

Authorized Dealer

Warranty Included

Harvia M Series Wood Stove Sauna Heater with Exterior Feed

If you are looking to get additional uses out of your sauna stove than this Harvia M3 SL is the stove for you. 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 bather can be relaxing in the next room while appreciating the glow of the flames behind the cast-iron-framed glass door.

 

Required for Operation:

  • 66lbs stones (Qty 2 x 44lbs of 10-15cm stones)

 

Includes

  • Sauna Stove
  • Stove door
  • Ash box
  • Fire chamber extension
  • Installation and operation manual
  • 2 year limited warranty

Features

  • Heats two rooms
  • Heater and fireplace
  • Wood-burning
  • 16.5kW
  • For sauna rooms from 212 to 459 cu. ft.
  • Requires a minimum of 66lbs of stones ( 2 boxes-AC3020)
    • Please note that each natural stone is unique in shape and size. We recommend purchasing an additional box of sauna stones to allow you to choose the highest quality of stone for fit, form, and function 
  • cast-iron-framed glass door
  • Floor model
  • Upper connection opening
  • Soot opening
  • Designed, engineered, and made in Finland
  • Dimensions: 15.3" W (390mm) x 25" D (640mm) x 28" H (715mm)
  • Limited 2-year warranty 

Specifications

Model M3 SL
Kilowatt Rating 16.5 KW
Primary Fuel Wood
Maximum Firewood Length 13.7" (350mm)
Diameter of Firewood 3 - 6" (80 - 150mm)
Minimum Cubic Feet 212 CF
Maximum Cubic Feet 459 CF
Minimum Room Height 75.4" (1915mm)
Heater Weight 99 lbs
Shipping Weight with Sauna Stones 187 lbs
Width 15.3" (390mm)
Depth 25" (640mm)
Height 28" (715mm)

     

     

    Technical 

    Installation and Operation Manual

    Additional Instructions

    Stone Requirements

    Warranty

     

    For Harvia Protective Sheath for Harvia Linear 16 Series Sauna Stoves or accessories damaged in shipping, please contact our customer service team with photos and information at customercare@nordicasauna.com. A team member will review and offer a credit or replacement based on the extent of the damage.

     

     


    Shipping & Returns

    Cancellations & Refunds

    Nordica Sauna prides itself on having one of the best return policies in the industry.  Cancel any time before your order has shipped, completely free of charge (exceptions apply, including custom made orders).

    Call 1-877-587-5387 or email customercare@nordicasauna.com

     

    When will I know my order has shipped?

    As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your credit card for the purchase.  As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

     

    When will my order ship?

    If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at customercare@nordicasauna.com.  

    No shipping outside the lower 48 States in the USA.

     

    What if my shipment is damaged?

    Please inspect the packaging of your item(s) when they arrive. If you notice any damage, you should make note of it when signing for delivery.  If your item(s) do arrive damaged please send photos to customercare@nordicasauna.com and we will process an insurance claim on your behalf.

     

    Cancellations (Before order ships)

    Nordica Sauna prides itself on having one of the best return policies in the industry.  Cancel any time before your order has shipped, completely free of charge (exceptions apply, including custom made orders). Reach agents during business hours at 1-877-587-5387, the chat on our website, or email customercare@nordicasauna.com

     

    Cancellations of customer orders

    Custom or made to order products cannot be canceled or refunded as these products are put into production specifically for your order.  These units are custom made to your specification or created once you order. Once you place your order they start building your unit. Your warranty will guarantee you a fully functional and operational product. If it is not clear whether your order is custom or made to order, please message or call us. 

    All sales are final for Custom made and Made-to-order products.

     

    Refunds & Returns

    If you need to exchange your product, you may do so.  You, as the customer, are responsible for any shipping costs throughout any returns or exchange processes. 

    Not all orders are available for return once they have shipped.  We order products directly from the manufacturer. Therefore, if the manufacturer will not permit us to return a product, we cannot offer you a return. This often varies on a case-by-case basis; please reach out to us if you would like specific information on your brand and/or product. 

    Due to drastically increasing LTL/freight shipping costs, any outright returns will incur a 25% cancellation fee + return shipping costs. If you are replacing the product with something else, we may be able to help you cover some of the costs depending on the product.

    Seller reserves the right to refuse to refund any deposit or payment, or cancel any payment due, and any owing until such time as Seller a) is in receipt of the goods b) has inspected the goods and c) in the Sellers discretion, has found the goods to be free of damage. All refunds will be provided within 5 business days once the product has been returned to the warehouse and inspected for damage.

     

    Shipping Times

    We promise to do our best to get your order to you as soon as possible.  We provide estimated shipping times on the product pages based upon what our suppliers and freight companies tell us, and those estimated shipping times may change or vary without notice (Due to supply chain issues, the steel mills behind on making metal, the manufacturers delayed because of the mills, the overwhelmingly demand on shipping, factory/warehouse and dock workers and so on

     

     

     

     


    Customer Reviews

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    harvia logo

    THE HEART OF THE SAUNA

    Be it an electric or a wood-burning heater, steamy or dry, one thing is for sure; it heals you. Harvia’s heaters are your traditional source for modern well-being. From the beginning, Harvia’s heaters have been forged with quality as a priority. With over 70 years of craftsmanship, Harvia heaters are reliably built to last. Easy to use, practical, and safe – you are sure to find a fitting heater for your sauna.


    Harvia Electric Heaters

    Your Sauna's Powerhouse

    The right heater is the heart and part of the interior and atmosphere of the sauna. From our selection, you can find the right electric heater and design for your needs. You can also choose the heater based on your steam preferences. A large stone capacity in pillar heaters provides soft steam. If you like dry and hot steam, then a smaller stone amount in our wall-mounted heater is perfect for you. Harvia's product range offers solutions for both home and commercial use.

    The power of the electric heater is based on the size of the sauna and the interior materials used in the sauna. An average of 1 kW of heater power is required per cubic meter of sauna volume. The need for power increases if the sauna has window or glass surfaces or heat-storing surfaces, such as brick or concrete.

    Harvia Wood-Burning Heaters

    Enjoyment to all Your Senses

    In the wood-heated sauna, you will enjoy the sauna culture in its most authentic way. The atmospheric light of the blazing flame, the scent of wood, and the pleasant hum from burning wood relax your mind and take you away from the everyday rush.

    With decades of experience, we offer the best and safe wood burning heater solutions for saunas of any size. Our wide selection includes wood-burning heaters, water heaters, safety equipment, and chimneys – not to forget, ready-made sauna solutions from benches to complete saunas.

    Harvia Combi Heaters

    Combine both the Heat and Steam

    Do you love steam and enjoy the heat but don't know whether you should choose a steam generator or an electric heater? Then Combi heaters are perfect for you. As the name says Combi heaters are a combination of an electric heater and a built-in steam generator.

    You can adjust the humidity and temperature separately as the heater and the steamer have their own heating elements. It is possible to determine the humidity of the sauna with an accuracy of one percent.

    Harvia Sauna Controls

    Take Control of Your Sauna

    Separate control units are suitable for our E-model heaters. You can operate them with the control panel, which, depending on the control unit, is separately installed or on the control unit itself.

    You can also install other sauna devices such as lighting, ventilation, steam generator, or combi heater to the control unit, and then they can be operated from the control panel as well as the heater. Every part is easy to maintain once they have been installed.

    Control panels are used to control the functions of the installed devices. Electric heaters that don't require separate control units have the necessary capabilities built into the heater, such as our XE-model heaters. Our control panels can be surface mounted or embedded into the wall, and they can be installed inside or outside the sauna room.

    Nordica Sauna Customer Reviews

    Based on 39 reviews
    85%
    (33)
    13%
    (5)
    0%
    (0)
    3%
    (1)
    0%
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    Love the sauna…boy oh boy does this thing heat up. The panel in the floor can almost get too warm for comfort when touching it barefoot. Delivery was quick and set up is super simple. You do need two people not for the weight but just the awkward large size and to hold the initial panels in place while you snap the clasps together. Control panel can be access inside or outside which is a feature I love. You can connect your sound via bluetooth. Only drawback is that you cant turn on remotely to warm up.

    Great Little Stove!

    I'm very happy with the Huum Hive Heat! It looks great, works well, and was easy to install. My only complaints are that I came up at least a box of rocks short from filling the cage, and it's tough to add logs to an existing fire without embers falling out. I used three 12"x24" tiles and bullnose under mine, but embers still ended up bouncing onto the wood floor until I created an embers screen by drilling 5/16" holes in a 1/4" 8-3/4"x4" aluminum plate that I place between the front door and sides. Nordica and Huum came through by sending an extra box of sauna rocks so I've bumped my review to 5 stars. It's an awesome, fast heating, and beautiful stove in my homemade barrel sauna!

    Great sauna!

    It was by and large a great experience. (except for a couple of relatively minor issues:1) bracket that came for the heater was incorrect and meant for a smaller heating unit; fortunately we adjusted the bracket that came with the heating unit and managed to get it to fit snugly. 2) there was a crack on the water container but Nordica sauna was so gracious in getting a new one out. Thank you!

    I was amazed at how the shipment was so carefully packaged. However, I would urge the manufacturers to get better on the instructions. Some parts were difficult to follow.

    Overall I recommend this sauna to anyone thinking g of getting one. I especially recommend Nordica sauna. They were amazingly responsive every step of the way. 🙏👍🏼👌

    Nordica FIN-80

    Easy installation, Quality workmanship, Good equipment...

    Great Little Stove!

    I'm very happy with the Huum Hive Heat! It looks great, works well, and was easy to install. My only complaints are that I came up at least a box of rocks short from filling the cage, and it's tough to add logs to an existing fire without embers falling out. I used three 12"x24" tiles and bullnose under mine, but embers still end up bouncing onto the wood floor. I ended up creating an embers screen by drilled 5/16" holes in a 1/4" 8-3/4"x4" aluminum plate that I place between the front door and sides. It has worked well to keep embers from rolling out. If Huum offered more stones and an embers screen I'd definitely bump my review to 5 stars.

    Great stuff!!!!

    Great stuff!!!!

    Woof burnin g hot tub

    Can not review yet. Received the hot tub but will not bed set until spring. At that time I will be happy to respond

    Definitely not A 3 person Sauna

    More so a 2 person sauna and this doesn’t have Bluetooth. I can’t hear calls inside and the music isn’t the clearest. I have to use a Aux cord to connect music. However, loving the sauna. It gets very hot and I enjoy sitting in it. It won’t let you extend 60 mins but you can keep raising it. I am 5’8 and can stand up (barely) in the sauna. Not the largest sauna to stand up in if you’re taller than that. Otherwise, very happy with my new sauna that I have on my terrace.

    J
    Stone Boxes
    John L.
    Very Satisfied

    Great customer service and fast delivery time!

    Great!

    Was shipped promptly.

    Excellent product

    Excellent product

    Thank you, Roberto. It was a pleasure working with you to find the right sauna fit. Hope you enjoy it!

    Stove

    The Stove looks awesome. We are now in the process of building a sauna so we haven't used it yet. My friend has one and loves it.

    We are so glad you like the stove, Michael! Best of luck building your sauna and let us know if we can be of any assistance!

    Very Satisfied

    Fantastic customer service and fast delivery time.

    S
    Kolo Sauna Set 1
    Santi D.
    Beautifully crafted, quality product! Quick

    Beautifully crafted, quality product! Quick delivery!

    Love love love

    I ordered my sauna on October 19th and received a call to schedule delivery on October 25th. The delivery company dropped the pallet right inside my garage. Everything was package extremely well. The items were in 3 packages which makes it easier to move to desired location for set up. Also I received my Letter of Medical Necessity on October 20th (1 day after ordering) to submit for FSA reimbursement. Set up was super easy you do need a second set of hands but my 10 year old was able to steady the panel in place while I did the work. I did most of the assembly without the instructions because it is so intuitive and pretty much plug and play. This is also my 3rd sauna from Golden Designs. I donated my first when I moved cross country and missed it so much that I got another one and then left that one behind when I moved back across country. Started missing it again and had to get another one. My mom’s feedback was that the metal handle gets hot to the touch and this is true but for the aesthetics I prefer the metal handle. They have models with wooden handles and they look cheap. They don’t get burning hot and you can always use the towel to hold the handle this one really boils down to preference. This model says 2 person and that may be true if there are 2 - 100# people are sitting in there. I find it is actually perfect for 1 person and even then don’t expect that you can lay down and spread out. But man o man will you sweat so this way, you’re not dripping sweat on one another. I love the 2 person sauna because you don’t need an electrician it plugs into a regular household outlet. My 2nd unit was a 3 person and it required a special dedicated outlet and I found that I didn’t need the extra space because on that one I still couldn’t lay down and where 2 people could fit inside I still prefer my sauna time alone. My 1st unit was a 1 person and that one felt a little cramped so out of the three the 2 person really is the perfect balance for in home use. This brand is reliable, heats up quickly and works great. The only thing I will say is that the little round decorative piece on the right side of this unit is a sticker. I thought it was the same wood as the rest of the sauna and that is why I picked this model over the Vittoria which is essentially the same dimensions wise. But it was disappointing that it wasn’t wood but looks like a cheap sticker to advertise the company name. Not a deal breaker at all I still love this company’s sauna and can’t wait to start reaping the benefits as this is in integral part of my health regimen.

    Super fast shipping and great

    Super fast shipping and great price!!!

    We got finally our sauna!!!

    Once I started looking into saunas for sale, I quickly fell in love with the size, quality and looks of the Dundalk Cabin 6 person Sauna. A quick follow up with Maya on delivery options the sauna kit arrived 6 weeks after placing the order. Maya helped in organizing a tilt tow truck to get the oversized pallet from the freight truck. It was a great experience! The sauna was erected in no time - it took my wife and myself 2 days. We used the sauna already 6 Times and we’re super happy. We decided to use a wooden fired stove to avoid extra cost for installing the electric wires. As a very experienced sauna user I can only highly recommend that sauna kit and Nordicasauna! One of the rare experiences of how customer support should look like. Five stars for excellent communication and handling.

    Order was scheduled to arrive

    Order was scheduled to arrive around July 5 and ended up arriving on September 28th. The reason I ordered this model was because of the stated order/delivery time. I have also had some issues since installation and created an order ticket (humans need not apply anymore on taking ownership of issues it seems) with no follow up or confirmation it is being addressed from 6 days ago. The sauna is fine, not great - takes +40 minutes to heat up.

    Great tub!

    This was a fantastic purchase. Great quality, looks great. It really heats up quickly. Much quicker than my expectations. Easy to get to 105/110 in a short time, it also retians heat very well. I'll be in the 90's the succeeding morning for a quick re-heat.

    Love love love

    I ordered my sauna on October 19th and received a call to schedule delivery on October 25th. The delivery company dropped the pallet right inside my garage. Everything was package extremely well. The items were in 3 packages which makes it easier to move to desired location for set up. Also I received my Letter of Medical Necessity on October 20th (1 day after ordering) to submit for FSA reimbursement. Set up was super easy you do need a second set of hands but my 10 year old was able to steady the panel in place while I did the work. I did most of the assembly without the instructions because it is so intuitive and pretty much plug and play. This is also my 3rd sauna from Golden Designs. I donated my first when I moved cross country and missed it so much that I got another one and then left that one behind when I moved back across country. Started missing it again and had to get another one. My mom’s feedback was that the metal handle gets hot to the touch and this is true but for the aesthetics I prefer the metal handle. They have models with wooden handles and they look cheap. They don’t get burning hot and you can always use the towel to hold the handle this one really boils down to preference. This model says 2 person and that may be true if there are 2 - 100# people are sitting in there. I find it is actually perfect for 1 person and even then don’t expect that you can lay down and spread out. But man o man will you sweat so this way, you’re not dripping sweat on one another. I love the 2 person sauna because you don’t need an electrician it plugs into a regular household outlet. My 2nd unit was a 3 person and it required a special dedicated outlet and I found that I didn’t need the extra space because on that one I still couldn’t lay down and where 2 people could fit inside I still prefer my sauna time alone. My 1st unit was a 1 person and that one felt a little cramped so out of the three the 2 person really is the perfect balance for in home use. This brand is reliable, heats up quickly and works great. The only thing I will say is that the little round decorative piece on the right side of this unit is a sticker. I thought it was the same wood as the rest of the sauna and that is why I picked this model over the Vittoria which is essentially the same dimensions wise. But it was disappointing that it wasn’t wood but looks like a cheap sticker to advertise the company name. Not a deal breaker at all I still love this company’s sauna and can’t wait to start reaping the benefits as this is in integral part of my health regimen.

    Very Satisfied

    Fantastic customer service and fast delivery time.

    J
    Stone Boxes
    John L.
    Very Satisfied

    Great customer service and fast delivery time!

    Love my sauna!

    Great product. Easy ordering process. The product arrived timely. Installation was also easy. I definitely recommend this company. I would order from them again.

    Transaction was smooth everything arrived quickly and safely

    I have not yet installed the sauna stove but it arrived quickly and safely! I included a picture of the packaging you can see that it has been well packaged! Excited to get it installed!

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    Harvia M Series Wood Stove Sauna Heater with Exterior Feed
    $1,112.00