Harvia Pro 20, 26 & 36 Wood Sauna Stoves

Harvia Pro 20, 26 & 36 Wood Sauna Stoves

Out of all Harvia’s enclosed wood-burning heaters, Harvia Pro sauna stoves hit the sweet spot in the most premium way: you get rapid heating and plenty of hot löyly (steam) just how you like it, sharp or soft.

This is achieved through an optimally balanced ratio of steel and sauna rocks. The stoves are robust and durable without being overly heavy, complimented by stone capacities of 88–132 lbs that are impressive, especially for heaters with closed sides, but not massive like in steel-framed mesh sauna stoves.

This design leads to quick heat-up times. Countless users share the same experience: after they replaced their old sauna heater with Harvia Pro, they only need half (or even less) the firewood than before, and the desired temperature is reached much quicker.

Capacities & Dimensions

Harvia Pro 20

• for sauna rooms from 283 to 706 cubic feet
• nominal heating capacity: 24.1 kW
• stone capacity: 88 lbs
• dimensions: 17 W × 20 D × 30 H in (430 × 510 × 760 mm)
• heater weight without stones: 117 lbs

Harvia Pro 26

• for sauna rooms from 353 to 918 cubic feet
• nominal heating capacity: 26.6 kW
• stone capacity: 110 lbs
• dimensions: 17 W × 20 D × 32 H in (430 × 510 × 810 mm)
• heater weight without stones: 143 lbs

Harvia Pro 36

• for sauna rooms from 494 to 1,271 cubic feet
• nominal heating capacity: 31 kW
• stone capacity: 132 lbs
• dimensions: 20 W × 20 D × 32 H in (510 × 510 × 810 mm)
• heater weight without stones: 154 lbs

🔶 Not sure about sizing? Use our sauna heater size calculator.

Clearances to Combustibles

Harvia Pro 20

• Ceiling clearance: 51 in (1 300 mm)
• Front clearance: 12 in (300 mm)
• Rear clearance: 12 in (300 mm)
• Side clearance: 12 in (300 mm)

Harvia Pro 26

• Ceiling clearance: 50.5 in (1 280 mm)
• Front clearance: 15 in (375 mm)
• Rear clearance: 15 in (375 mm)
• Side clearance: 15 in (375 mm)

Harvia Pro 36

• Ceiling clearance: 49 in (1 250 mm)
• Front clearance: 19.5 in (500 mm)
• Rear clearance: 19.5 in (500 mm)
• Side clearance: 19.5 in (500 mm)

🔶 If you want to reduce these minimum safety distances, metal sheets and cement boards are viable options.

• Check out a real-world example: How to Reduce Clearances
• 📄 Installation manual: Harvia Pro 20, 26 & 36

Features

• 2-year warranty (in home use)
• Made in Finland, CE-certified
• Color: black/steel
• Material: steel
• Floor model with adjustable feet: 0–30 mm
• Cast-iron door with a glass window, reversible (left- or right-hinged)
• Stone size: Ø 4–6 in (10–15 cm), required for operation & sold separately
• Flue connection location: top/rear
• Flue connection diameter: 4.5 in (115 mm) (see our chimney kits)

🔶 Need sauna stones? As they’re hard to find in the US & expensive to ship, we’ve partnered with North Shore Sauna that sells proper sauna stones mined in Minnesota & offers free shipping for orders over $100. When you buy through us, we get a commission and you get a discount code: if you buy six or more boxes, you get $50 off with the code SAUNAIS50.

Complete your setup: Buy real sauna stones

Shipping & Returns

🔸 Free shipping & no surprise charges: we handle all duties, taxes & customs fees.

🔸 Your order arrives damaged? No worries, our shipping policy has you covered.

🔸 Changed your mind? Returns are possible for unused items; return shipping costs apply.

🔸 Support: We’re here to help if you have any questions before or after purchase.

See full details: Shipping & Returns • Contact • Why Buy from Us