Harvia WL300 Smoke Pipe Cover for Legend Series Wood-Burning Stoves

The Harvia WL300 smoke pipe cover takes a Legend series wood-burning stove up a notch in both looks and safety. The steel cage extends the Legend’s signature stone-filled design up around the smoke pipe — and because the stones absorb radiant heat, the required safety distance to the smoke pipe is significantly reduced, giving you more placement options in the sauna room.

Features

• Significantly reduces the safety distance around the smoke pipe
• Extends the Legend’s stone-cage look above the stove
• Larger stone area — more mass for soft, lasting steam
• Compatible with Harvia steel chimneys
• Limited 2-year warranty (consumer use); limited 1-year warranty (commercial use)

What’s Included

• Smoke pipe cover
• Installation manual

Specifications

Compatibility

Designed for Harvia Legend wood-burning sauna stoves (Legend 150, 240, 300 and GreenFlame versions) with the standard 115 mm smoke pipe, and works with the Harvia WHP steel chimney system. Sauna stones are sold separately.

Good to Know

How does the WL300 reduce safety distances?

Filled with sauna stones, the cover absorbs and stores heat radiating from the smoke pipe instead of letting it reach nearby surfaces, so Harvia permits a significantly smaller clearance around the covered section of pipe. See the installation manual for exact distances.

Does it fit stoves other than the Legend series?

The WL300 is designed around the Legend’s stone cage and 115 mm smoke outlet. For Cilindro stoves, use the Harvia WL300PC chimney cover instead.

Are stones included?

No — fill it with the same Harvia sauna stones used in your stove. More stone mass also means softer steam.

Designing a Harvia Chimney System

Every part on this page belongs to Harvia’s modular WHP steel chimney system: a 115 mm (4.5″) smoke path inside a 220 mm (8.6″) insulated casing, assembled with slot-and-lock joints. Here is how a complete system comes together:

1. Start with the chimney. For pitched roofs, the WHP1500 kit (1500 mm chimney plus rain cap, tilted rain flange, smoke pipe, and ceiling lead-through set) is the core of the system. For flat roofs and barrel saunas, the WHP1000500 package bundles the chimney with the symmetric roof kit.
2. Connect the stove. Bridge the stove collar to the insulated chimney with 115 mm WZ smoke pipes (20 cm, 50 cm, or 1 m). Add the WZ115030SP damper plate at the stove to control draft while firing, a WZ115120 reducer where pipe sections step down, or the WZ115155 adapter if you are transitioning to 6″ US Class A pipe.
3. Reach your height. Add WHP500 (500 mm) or WHP1000 (1000 mm) extensions. Stay within Harvia’s limits: 5.0 m (16.4 ft) total chimney height, no more than 2.0 m (6.5 ft) above the last support, lateral supports every 3.0 m (9.8 ft).
4. Go through the roof. Choose the roof kit that matches your roofline — WHP-AS for tilted/pitched roofs, WHP-ASSYM for flat roofs and barrels. Replacement rain collars: WHM22 (tilted) and WHM24 (symmetric). Add a snow barrier above the chimney where sliding snow can load the flashing.
5. Seal and control. The WHM25 vapor barrier restores the vapor-tight layer where the chimney passes the sauna ceiling; the WHP270 insulated damper closes the flue after the fire is fully out so the sauna holds its heat.
6. Finish the stove side. Stone-filled covers — WL300 for Legend stoves, WL300PC for Cilindro — absorb radiant heat from the smoke pipe and significantly reduce its required safety distances.

Key clearances and rules: vertical installation only; 100 mm (4″) from the insulated casing to combustibles; 500 mm (stainless) or 375 mm (black) from non-insulated smoke pipe unless shielded; designed for wood-burning stoves in standalone outdoor sauna buildings. Confirm your plan with your local building authority — and if you would like help speccing the system, talk to us; we design these daily.

Shop the Complete Harvia Chimney System

1. Start with the chimney

• WHP1500 Chimney Kit, 1500mm (stainless or black) — the system core
• WHP1000500 Complete Chimney Package for flat roofs & barrel saunas

2. Connect the stove

• WZ Smoke Pipes, 115mm (20 cm / 50 cm / 1 m, stainless or black)
• WZ115030SP Stove-Side Damper Plate (draft control while firing)
• WZ115120 Reducing Pipe (joins mismatched pipe sections)
• WZ115155 Adapter, 4.5″ Euro to 6″ USA (hybrid Class A transitions)

3. Reach your height

• WHP500 Chimney Extension, 500mm
• WHP1000 Chimney Extension, 1000mm

4. Go through the roof

• WHP-AS Roof Accessory Kit for tilted / pitched roofs
• WHP-ASSYM Roof Accessory Kit for flat roofs & barrel saunas
• WHM22 Replacement Rain Collar, tilted roofs
• WHM24 Replacement Rain Collar, flat roofs & barrels

5. Seal and control

• WHM25 Chimney Vapor Barrier (seals the ceiling penetration)
• WHP270 Insulated Smoke Damper (retains heat after firing)

6. Finish the stove side

• WL300 Smoke Pipe Cover for Legend stoves (cuts clearances) (this page)
• WL300PC Chimney Cover for Cilindro stoves (cuts clearances)