Harvia Linear 22 Greenflame 15.7kW Wood-Burning Sauna Stove | Graphite Black
Harvia Linear 22 Greenflame 15.7kW Wood-Burning Sauna Stove | Graphite Black
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- $1,534.00
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- $1,534.00
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Fitting the sheath lets this stove sit closer to a combustible wall. Harvia publishes a second, tighter clearance table that applies only with it in place. Check the figures against your own room, and your inspector has the final say.
This stove leaves the factory with a 4.5 in (115 mm) flue. North American chimney is 6 in. On a US install you will almost certainly need this adapter, and there is nothing to measure — one part, one fit.
Harvia’s own insulated steel chimney, the one named in this stove’s manual. A 1500 mm kit covers a standard sauna run. How much chimney your room needs depends on your ceiling height and roof, so we check the run with you before the order ships and tell you if extensions are needed. You are not guessing at lengths here.
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Shipping & Delivery
Shipping & Delivery
Every Harvia heater and stove ships free to the contiguous 48. What changes across the range is not the cost to you but how it arrives: electric heaters come by parcel and need nobody home, while wood-burning stoves come palletized by freight, by appointment, to the curb. Call (888) 500-5675 if you want the delivery method for your exact model confirmed before you order.
Electric heaters ship by parcel. Wall-mounted and pillar heaters run roughly 29 to 55 pounds, so they travel as insured ground parcel. No delivery appointment, no liftgate, no waiting in. These are the models that ship free to the lower 48.
Wood-burning stoves ship by freight. A wood stove can weigh several hundred pounds before you add stone, so it moves palletized on an LTL carrier. Freight is included to the contiguous 48. What a pallet changes is the handling: a delivery appointment, a signature, and curbside drop rather than a carrier leaving it at the door.
Sauna stones ship separately and they are heavy. A heater takes anywhere from one box to thirteen at roughly 44 pounds a box. That weight is why stones are quoted with your order rather than folded into a headline price.
Scheduling your delivery. Parcel shipments need nobody home. For freight, the carrier calls to arrange an appointment window and someone must be there to sign. Curbside is the standard: the driver will not bring a pallet inside or up steps, so arrange help for a heavy stove.
Where we ship. The contiguous 48 states. Alaska, Hawaii, Puerto Rico and Canada are quoted case by case, so contact us before ordering.
Inspect before you sign. Check the carton or pallet for damage while the driver is still there, and note any damage on the delivery receipt at the time of signing. Then contact us the same day. A clean signature with no damage noted makes a freight claim much harder to win, and this one habit is what decides most claims.
Lead times. Harvia stock for this market moves through a US distributor, so most orders ship promptly. Some part numbers are supplied from Finland and take longer. We confirm the position for your specific model when you order rather than publishing an average that would be wrong for half the range.
Questions before you order? Ten minutes on the phone confirming freight, lead time and what else has to be on the same pallet is cheaper than a surprise after you have paid.
Warranty
Warranty
Harvia covers its sauna heaters and wood-burning stoves against defects in materials and workmanship under normal use. Coverage runs from your date of purchase, so keep your receipt. Harvia US Inc. is the warrantor for North America.
Coverage periods. Residential family use: 2 years on electric heaters, controls and steam generators including the heating elements, and 2 years on wood-burning stoves. Commercial use: 2 years on electric heaters, controls and electronics but 6 months on heating elements, and 6 months on wood-burning stoves.
Register within 30 days and Harvia adds a third year. Registration is free and needs the model, serial number and purchase date. We send you the link and your serial number with your order, so you do not have to go looking for it. Electric heaters in residential use only. Almost no retailer mentions it, and it is worth a full extra year.
What is covered. Defects in manufacture and materials. Harvia will repair the product or supply replacement parts through the importer. Replacing a part does not extend the original period.
What is not. Normal wear, improper installation, poor maintenance, failure to follow the instructions, alterations and improper use. Sauna stones are a consumable and are not covered, and stones Harvia does not specify for your model can void cover.
Professional installation is a condition. Harvia requires that the unit is installed and wired by a licensed electrician and that proof of professional installation can be presented with a claim. Keep your installer's invoice with your receipt. A heater wired by the owner is outside the warranty.
Transport damage has a seven day limit. Harvia requires that you check the product for transport or storage damage on receipt, and that any damage found is reported to the seller or the carrier immediately and no later than seven days after delivery. We ask you to call us the same day because a claim is far easier to win with the damage noted on the delivery receipt, but seven days is the outside limit in Harvia’s own terms.
Changing how you use it ends the cover. Harvia states that the warranty period expires immediately if the primary intended use changes during the period, in either direction. Moving a heater from a family sauna into a gym, a rental or any other commercial setting ends the residential cover rather than converting it. Tell us before you order if the room will be used commercially, so we can quote it on the right terms from the start.
A callout for a fault that is not covered can be charged. If the defect turns out to fall outside the warranty, Harvia is entitled to charge for the work of finding it, including labour, travel and shipping at actual cost. Call us first and we will work through the symptoms with you before anything is booked, which is usually enough to tell whether it is a warranty fault, an installation issue or a stone problem.
How to make a claim. Call (888) 500-5675 or email sales@recoveryroomdirect.com with your order number, model and serial number, and a description of the fault. Photographs help. We open the claim with Harvia US on your behalf.
Return Policy
Return Policy
If a Harvia heater or stove is not right, you have 30 days from the date of purchase to return it. All return communication is handled by our team at Recovery Room Direct. You do not need to contact the manufacturer or the distributor yourself.
Condition required. The unit must be new, uninstalled and in resalable condition with its original packaging and all included parts. A heater that has been wired in, fired, or loaded with stones counts as installed and cannot be returned.
How to start a return. Call (888) 500-5675 or email sales@recoveryroomdirect.com with your order number. A Return Authorization number is required before anything goes back, and product returned without one can be refused. We will give you the RA number and the return address.
What a return costs. You get full credit for the product, less a repackaging fee that typically runs about 20 to 50 dollars depending on the item. There is no percentage restocking fee on a standard customer return, which is better than most of what we carry, where 15 to 20 percent is normal.
Who pays the return freight. You do on a change of mind. We do, and the distributor does, when the cause is shipping damage or an error on our side. Nothing is deducted for freight in those cases.
Damaged on arrival is a different process, and it is time sensitive. Note the damage on the delivery receipt before you sign, photograph the carton and the contents, and call us the same day. Concealed damage found after signing is much harder to claim, so open the box on delivery day even if you are not installing for weeks.
Sauna stones. Stone is sold by weight and is not returnable once a box is opened. Order the quantity your model takes and ask us if you are unsure, because the amount is set by the heater rather than by the room.
Control units and accessories. Same 30 day window and the same condition requirement. A control unit that has been wired in cannot be returned.
Price Match Guarantee
Price Match Guarantee
Found it for less at an authorized dealer? We'll match it — before or after you buy.
We're factory-authorized for every brand we carry. If you find this exact model listed at a lower price by another authorized retailer, send us the link and we'll match it before you check out. Already purchased? We'll refund the difference within 30 days of your order date.
To claim: Email us or call with a link or screenshot showing the lower price, the retailer name, and model number. We'll confirm authorization status and apply the match — typically same business day.
Applies to authorized U.S. retailers only. Excludes open-box, clearance, used, and bundle pricing. Item must be in stock at the competing retailer.
View our full price match terms
PRODUCT DESCRIPTION
Harvia Linear Series
Harvia Linear 22 Greenflame 15.7kW Wood-Burning Sauna Stove
The Linear is the slim, flat-sided one. At 17.72 inches wide it sits close to a wall without a bulky footprint, and the glass in the door puts firelight into the room, which is half the reason people choose wood over electric. This version adds Harvia's Greenflame clean-burn fire chamber.
Harvia rates it for rooms of 318 to 636 cubic feet. Before you order, read the chimney and firewood section below: this is a Finnish stove and two of its numbers do not match what is standard in North America.
Affirm financing available at checkout. Speak with a recovery specialist on (888) 500-5675.
Harvia Linear 22 Greenflame Features
What you are buying at 15.7kW
88.2 lbs of stone
Stone is the whole thermal story on a wood stove. It absorbs the fire's heat and gives it back slowly, so the room holds temperature between loads and a ladle of water produces steam rather than a hiss. Harvia rates this stove at 88.2 lbs of stone at 4 to 6 inches across, which is a larger grade than most electric heaters take.
Harvia's Greenflame clean-burn fire chamber
The Greenflame fire chamber is Harvia's clean-burn design: it feeds secondary air above the fire so unburnt gases ignite instead of going up the flue. You get more heat from the same wood and less smoke out of the chimney.
Steel body, listing to confirm
Welded steel, tested to the European standard EN 15821:2010 by Eurofins Expert Services Oy, Espoo, Finland. Harvia publishes CE and EAC marks for this stove and does not publish a North American listing for it. CE is a European conformity marking, not a US or Canadian listing. Depending on where you live that can affect permitting, inspection and what your home insurer will accept for a solid-fuel appliance. Check with your local building department and your insurer before ordering, and call us if you want us to check the position for this specific stove.
Sizing the Linear 22 Greenflame
Is 15.7kW the right output for your room?
Measure length × width × height in feet. A wood stove has a real minimum as well as a maximum, which an electric heater mostly does not: put a 15.7kW fire in a room smaller than 318 cubic feet and you cannot keep it comfortable, because the fire does not throttle the way an element does. Size it inside the range rather than at either edge.
Cold surfaces change the answer, and a glass door counts. Harvia's manuals treat brick, glass, tile and concrete as non-insulated surface and say to add 1.2 cubic meters of volume for every square meter of it, which works out near 3.9 cubic feet for every square foot. Harvia's own worked examples: a 10 cubic meter room with a glass door behaves like a 12 cubic meter room, and the same room with a 2 by 2 meter brick wall behaves like 15. If you are close to the limit, size up rather than down.
Log walls without insulation heat slowly. Harvia advises multiplying the room volume by 1.5 before choosing output in that case.
Chimney, clearances and firewood
The three numbers to check before you order
1. The flue is 4.5 inches, not 6. Harvia specifies a 115 mm connection opening and a minimum internal flue diameter of 110 mm, which is 4.5 and 4.3 inches. Standard North American stove pipe is 6 or 8 inches, so you will not match this at a hardware store. Plan on Harvia's own steel chimney or a fabricated adapter, and the chimney has to be temperature class T600.
2. Check your firewood length. The firebox takes logs up to 39 cm, which is 15.4 inches, at 3 to 6 inches thick. US cordwood is sold cut to 16 inches as standard, so a cord ordered the normal way will not fit. Specify the length when you buy, or plan to cut it down.
3. Clearances.
Harvia publishes these minimum distances to combustible material for the Linear 22 Greenflame:
| Ceiling | 1265 mm (49.8 in) |
|---|---|
| Either side | 400 mm (15.7 in) |
| Behind | 380 mm (15.0 in) |
| In front | 500 mm (19.7 in) |
Against a masonry wall the figure drops to 50 mm (2 in), or 100 mm (4 in) if the stove sits in a recess, provided air can circulate at the front and one side.
The stove needs a floor that can carry 152.1 lbs of stove plus 88.2 lbs of stone, and a non-combustible hearth. Ash, stone chips and metal flakes will mark a light floor, so Harvia recommends dark floor materials and dark grout under and around the stove.
Harvia Linear 22 Greenflame Specifications
Harvia Linear 22 Greenflame specifications, 15.7kW and 88.2 lbs of stone
| Model | Linear 22 Greenflame (WKLI20GM) |
|---|---|
| Heat output | 15.7 kW |
| Fuel | Solid wood only |
| Recommended room volume | 318 to 636 cu. ft. |
| Stone capacity | 88.2 lbs maximum |
| Stone size | Angular split-face, 4 to 6 in (100 to 150 mm) |
| Maximum firewood length | 15.4 in (39 cm) |
| Firewood diameter | 3 to 6 in (80 to 150 mm) |
| Chimney temperature class | T600 required |
| Flue connection opening | 4.5 in (115 mm) |
| Minimum internal flue diameter | 4.3 in (110 mm) |
| Clearance to ceiling | 49.8 in (1265 mm) |
| Clearance to sides | 15.7 in (400 mm) |
| Clearance behind | 15.0 in (380 mm) |
|---|---|
| Clearance in front | 19.7 in (500 mm) |
| Clearance to masonry | 2 in (50 mm), 4 in (100 mm) in a recess |
| Width | 17.72" |
| Depth | 20.08" |
| Height | 30.31" |
| Shipping weight | 152.1 lbs |
| Construction | Welded steel |
| Electrical supply | None required |
| Certification | See listing note below |
| Tested to | EN 15821:2010, Eurofins Expert Services Oy, Espoo, Finland |
| Warranty | 2 years residential, 6 months commercial use |
What's in the box
Included with your Linear 22 Greenflame
- Harvia Linear 22 Greenflame wood-burning sauna stove
- Ash box and grate
- Adjustable feet, 0 to 30 mm, for an uneven floor
- Installation and operating instructions
- Harvia manufacturer warranty, 2 years residential and 6 months in commercial use
Stones, chimney and floor protection are all sold separately. Harvia rates the Linear 22 Greenflame to hold up to 88.2 lbs of stone, which is about 2 boxes of Harvia AC3020 at 44 lbs a box. Order AC3020 and not AC3000: a wood stove takes 4 to 6 inch stone and AC3000 is the smaller 2 to 4 inch stone made for electric heaters. You will also need a T600 chimney and a non-combustible hearth. Call (888) 500-5675 and we will put the whole package together.
Shipping & delivery
How your stove ships
Ships by freight
At 152.1 lbs the Linear 22 Greenflame moves by LTL freight on a pallet. We will call you to arrange a delivery appointment. Plan for help getting it into the sauna: it is a two-person lift at least.
Contiguous US
Delivered throughout the lower 48. Alaska, Hawaii, Puerto Rico and Canada are quoted separately, so contact us before ordering.
Inspect on arrival
Check the crate before you sign. Note any damage on the delivery receipt at the time of delivery, then contact us the same day so we can open a claim.
Compare the Linear range
The Linear 22 Greenflame against the rest of the Linear range
Same family, same chimney requirement, same stone size. What changes is output, how much stone the body carries and which variant you take: a plain stove, one you feed from the next room, or one with glass in the door. Room volumes are Harvia's published range.
Swipe to see all columns
| Model | Output | Room range | Stone | Ship weight | Variant |
|---|---|---|---|---|---|
| Linear 16 | 17.9 kW | 212 to 565 cu. ft. | 79.4 lbs | 108.5 lbs | standard |
| Linear 18 Compact | 14.3 kW | 177 to 636 cu. ft. | 88.2 lbs | 145.5 lbs | double shell |
| Linear 22 Greenflame | 15.7 kW | 318 to 636 cu. ft. | 88.2 lbs | 152.1 lbs | Greenflame firebox |
| Linear 22 Greenflame ES | 15.7 kW | 318 to 636 cu. ft. | 88.2 lbs | 174.2 lbs | a fixed water tank on the front with a tap |
Sizing by room volume, stone capacity and running cost are covered on our sauna heaters hub, and flue, clearances and permitting on wood-burning sauna heaters.
Harvia Linear 22 Greenflame FAQ
Questions buyers ask about the Linear 22 Greenflame
What size sauna room does the Harvia Linear 22 Greenflame heat?
Harvia rates the Linear 22 Greenflame for rooms of 318 to 636 cubic feet. Multiply your room length, width and height in feet. Unlike an electric heater a wood stove has a real minimum as well as a maximum, because the fire cannot be throttled the way an element can, so a stove this size in a room below the minimum will overheat it. Non-insulated surface counts, and so does a glass door: Harvia adds 1.2 cubic meters of volume for every square meter of brick, glass, tile or concrete, which is near 3.9 cubic feet for every square foot. Add that before you compare against the range.
What size chimney does this stove need?
A T600 temperature class chimney with a minimum internal diameter of 110 mm, which is 4.3 inches, connecting to the stove's 115 mm (4.5 inch) opening. That is the number most North American buyers are caught by, because standard US stove pipe is 6 or 8 inches and will not fit without an adapter. Harvia makes a matching steel chimney system. Call us before you order and we will confirm exactly what your installation needs.
How long can the firewood be?
Up to 39 cm, which is 15.4 inches, and 3 to 6 inches thick. This matters more than it sounds: firewood in the United States is normally sold cut to 16 inches, which will not fit this firebox. Either specify a shorter cut when you order your wood or plan to cut it down yourself. Burn dry, untreated split wood only. Never burn painted or pressure-treated timber, chipboard, plastic or accelerants in a sauna stove.
Is the Linear 22 Greenflame listed for use in the United States?
Harvia publishes CE and EAC marks for this stove and does not publish a North American listing for it. CE is a European conformity marking, not a US or Canadian listing. Depending on where you live that can affect permitting, inspection and what your home insurer will accept for a solid-fuel appliance. Check with your local building department and your insurer before ordering, and call us if you want us to check the position for this specific stove.
Are sauna stones included?
No, and the stone for a wood stove is not the same as for an electric heater. Harvia rates the Linear 22 Greenflame to hold up to 88.2 lbs, which is around 2 boxes of Harvia AC3020 at 44 lbs a box. Wood stoves take stone 4 to 6 inches across. AC3000, which we recommend on our electric heaters, is the smaller 2 to 4 inch grade and is the wrong stone here. Order AC3020.
What warranty comes with this stove?
Harvia covers this stove for 2 years in residential family use under the Limited Warranty for Harvia Products dated 18 November 2025. In commercial or other non-consumer use the period is 6 months. The registration extension applies to electric heaters only, so it does not extend a wood stove. Cover runs from your date of purchase, so keep your receipt. Harvia also requires that the stove is installed to its manual and to local code, and that the chimney work is done properly, so keep your installer's paperwork with your receipt. Transport or storage damage is separate and must be reported no later than seven days after delivery. Harvia US Inc. is the warrantor and handles claims directly, and we open the claim on your behalf. Full terms are on our Harvia warranty policy page.
Can I install it myself?
The stove itself is not hardwired, so there is no electrician involved, but the chimney is the part that matters and in most jurisdictions a solid-fuel appliance and its flue need a permit and an inspection. Clearances to combustible material are not advisory. The stove also needs a floor that can carry 152.1 lbs plus stone and a non-combustible hearth. Talk to your building department before you buy, not after.
How is a wood stove different from an electric heater to live with?
You light it and wait, usually 45 minutes to an hour, and you feed it while you bathe. There is no timer, no thermostat and nothing to preheat from your phone. In exchange there is no wiring, no panel work and no electrician, it works where there is no power at all, and most people find the heat softer and the room quieter. It is more work and more ritual. That is usually the point.
Authorized Dealer
Backed by the Harvia manufacturer warranty
Free Shipping
Free shipping to the lower 48
Recovery Specialists
Authorized Stock
Supplied through our authorized distributor
Talk the chimney through before you order
The flue size, the clearances and the permit are where wood sauna projects go wrong, and they are all easier to solve before anything is bought. Tell us your room and your chimney situation and we will tell you honestly whether the Linear 22 Greenflame fits.
Speak with an Expert(888) 500-5675
