The HUUM HIVE Flow LS Wood-Burning Sauna Stove with Firebox Extension brings exceptional heat performance to smaller sauna rooms without compromising style or quality. Inspired by Nordic design principles, this compact model efficiently channels warmth throughout the space while maintaining the clean, timeless aesthetic HUUM is known for.

Built from durable steel with a 5 mm top and 3 mm sides, the HIVE Flow LS ensures even heat distribution and long-lasting durability. Despite its smaller size, it accommodates up to 330 lb (150 kg) of stones—and an optional stone cage allows for an additional 77–88 lb (35–40 kg), extending the heat retention period for comfortable, consistent steam.

The stove’s rounded form and glass furnace door create a natural focal point, offering both visual appeal and functional efficiency. Designed and manufactured in Estonia, the HIVE Flow LS reflects HUUM’s commitment to thoughtful engineering and modern craftsmanship.

Features

• Wood-burning sauna stove for compact to mid-sized rooms (282 – 635 cu. ft.)
• Firebox extension
• Distinctive round design with visible stone layout
• Efficient fuel consumption for consistent heat performance
• Mild, extended steam for a traditional sauna experience
• Patent-pending furnace construction for optimized airflow
• BImSchV and CPR for compliance
• Durable stainless-steel structure for longevity
• 330-lb (150 kg) stone capacity (10 boxes required, sold separately)
• Dimensions: 20.7"W (53 cm) x 29.5"D (75 cm) x 34.8"H (88 cm)
• 3-year residential and 1-year commercial warranty (excluding elements)

• Designed, engineered, and made in Estonia

Specifications

Power Rating
9.8kW

Sauna Room Size
282ft³ - 635ft³

Stone Capacity
330 lbs. (150kg) - required 10 boxes sold separately

Minimum Room Height
75" (191 cm)

Weight
160 lbs. (73kg)

Dimensions
Width: 20.7" (530 mm)
Depth: 29.5" (750 mm)
Height: 34.8" (880 mm)

Firewood Length
12" (300 mm)

Diameter of the Flue
4.49" (114 mm)

Safety Distances
A: 5.9" (150 mm)
B: 19.69" (500 mm)
C: 32.5" (826 mm)

What's Included 

• Wood-burning sauna stove
• Metal grate
• Heat resistant glove
• Splints
• Metal fixing plates (2 pcs)
• Ash grate
• Cleaning hatches (2 pcs)
• Ash drawer
• Installation and operation manual
• 3-year residential warranty and 1-year commercial warranty

Add-Ons

The following components are sold separately:

• 330 lbs of Rounded Olivine Sauna Stones with a Diameter of 5-10 cm / 2-4 in
  
  • HUUM Sauna Stones 24 (10 Boxes)
• Chimney Kit
  • HUUM Thru-Ceiling Chimney Kit
    
  • HUUM Barrel Sauna Chimney Kit
  • HUUM Thru-Wall Chimney Kit
• HUUM Mounting Collar for HIVE Flow LS
• HUUM Protective Plate
• HUUM Protective Bed
• HUUM Stone Cage 

Manuals & Resources