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The HUUM HIVE Flow 9.8kW LS is the through-the-wall version of the HIVE Flow wood-burning sauna stove. Its extended firebox passes through a non-combustible wall, so the fire is lit and fed from the adjacent room or from outside while the stove body and stones stay in the sauna. Wood, ash and smoke stay out of the hot room, and the sauna stays clean and quiet while the fire is tended.

Rated at 9.8 kW for sauna rooms of 282–635 cubic feet, the Flow LS directs 75% of its heat into the sauna and holds up to 330 lbs of stones for long, even steam that continues for 30+ minutes after the fire dies down. It is built from stainless steel with a 5 mm top and 3 mm sides, takes 11.8" logs through a large glass door and has low CO emissions (346 mg/m³). The firebox is 4.7" longer than the standard HIVE Flow and fits walls up to 4" thick, or up to 6" with a HUUM mounting collar.

  • Through-the-Wall Loading: The extended firebox passes through a non-combustible wall, so firewood is loaded from an adjacent room or from outside and wood debris and ash stay out of the sauna.
  • Fits Walls up to 4" (6" with Collar): Installs in a non-combustible wall up to 4" thick, or up to 6" with a HUUM mounting collar; the firebox is 4.7" longer than the standard HIVE Flow.
  • 9.8 kW for 282–635 cu ft: Heats sauna rooms from 282 to 635 cubic feet, with 75% of the heat directed into the sauna space.
  • Holds up to 330 lbs of Stones: The large stone capacity gives extended steam release for 30+ minutes after the fire dies down.
  • Stainless Steel Construction: A 5 mm stainless steel top and 3 mm sides spread heat evenly and are built for long-term use.
  • Large Glass Door, 11.8" Logs: A large glass door lets you watch the fire, and the firebox takes 11.8" logs.
  • Low CO Emissions: CO emissions of 346 mg/m³ with minimal particulate output.
  • 3-Year Warranty: Covered by a 3-year limited warranty (excluding elements).
  • Brand: HUUM
  • Model: HIVE Flow 9.8kW LS
  • MPN: H1016012
  • Type: Wood-burning sauna stove, through-the-wall (LS)
  • Heat Output: 9.8 kW
  • Sauna Room Size: 282–635 cu ft
  • Dimensions: 20.7" W × 27.8" D × 34.8" H
  • Weight: 161 lbs (without stones)
  • Stone Capacity: 330 lbs
  • Firewood Length: 11.8"
  • Flue Diameter: 4.5"
  • Material: Stainless steel (5 mm top, 3 mm sides)
  • Wall Requirement: Non-combustible wall
  • Wall Thickness: Up to 4" without collar; up to 6" with HUUM mounting collar
  • Safety Distances: A: 6" (150 mm), B: 20" (500 mm), C: 33" (826 mm)
  • CO Emissions: 346 mg/m³
  • What's Included: Stove, metal grate, installation and operating manual, heat-resistant glove, splints, metal fixing plates (2), ash grate, cleaning hatches (2), ash drawer
  • Sold Separately: Sauna stones (330 lbs), chimney connection, HUUM mounting collar
  • Warranty: 3-year limited warranty (excluding elements)

HUUM HIVE Flow 9.8kW LS | Wood-Burning Sauna Stove

SKU: HUU-H1016012
Regular price $3,221.00
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The HUUM HIVE Flow 9.8kW LS is the through-the-wall version of the HIVE Flow wood-burning sauna stove. Its extended firebox passes through a non-combustible wall, so the fire is lit and fed from the adjacent room or from outside while the stove body and stones stay in the sauna. Wood, ash and smoke stay out of the hot room, and the sauna stays clean and quiet while the fire is tended.

Rated at 9.8 kW for sauna rooms of 282–635 cubic feet, the Flow LS directs 75% of its heat into the sauna and holds up to 330 lbs of stones for long, even steam that continues for 30+ minutes after the fire dies down. It is built from stainless steel with a 5 mm top and 3 mm sides, takes 11.8" logs through a large glass door and has low CO emissions (346 mg/m³). The firebox is 4.7" longer than the standard HIVE Flow and fits walls up to 4" thick, or up to 6" with a HUUM mounting collar.

  • Through-the-Wall Loading: The extended firebox passes through a non-combustible wall, so firewood is loaded from an adjacent room or from outside and wood debris and ash stay out of the sauna.
  • Fits Walls up to 4" (6" with Collar): Installs in a non-combustible wall up to 4" thick, or up to 6" with a HUUM mounting collar; the firebox is 4.7" longer than the standard HIVE Flow.
  • 9.8 kW for 282–635 cu ft: Heats sauna rooms from 282 to 635 cubic feet, with 75% of the heat directed into the sauna space.
  • Holds up to 330 lbs of Stones: The large stone capacity gives extended steam release for 30+ minutes after the fire dies down.
  • Stainless Steel Construction: A 5 mm stainless steel top and 3 mm sides spread heat evenly and are built for long-term use.
  • Large Glass Door, 11.8" Logs: A large glass door lets you watch the fire, and the firebox takes 11.8" logs.
  • Low CO Emissions: CO emissions of 346 mg/m³ with minimal particulate output.
  • 3-Year Warranty: Covered by a 3-year limited warranty (excluding elements).
  • Brand: HUUM
  • Model: HIVE Flow 9.8kW LS
  • MPN: H1016012
  • Type: Wood-burning sauna stove, through-the-wall (LS)
  • Heat Output: 9.8 kW
  • Sauna Room Size: 282–635 cu ft
  • Dimensions: 20.7" W × 27.8" D × 34.8" H
  • Weight: 161 lbs (without stones)
  • Stone Capacity: 330 lbs
  • Firewood Length: 11.8"
  • Flue Diameter: 4.5"
  • Material: Stainless steel (5 mm top, 3 mm sides)
  • Wall Requirement: Non-combustible wall
  • Wall Thickness: Up to 4" without collar; up to 6" with HUUM mounting collar
  • Safety Distances: A: 6" (150 mm), B: 20" (500 mm), C: 33" (826 mm)
  • CO Emissions: 346 mg/m³
  • What's Included: Stove, metal grate, installation and operating manual, heat-resistant glove, splints, metal fixing plates (2), ash grate, cleaning hatches (2), ash drawer
  • Sold Separately: Sauna stones (330 lbs), chimney connection, HUUM mounting collar
  • Warranty: 3-year limited warranty (excluding elements)