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HUUM HIVE Flow 9.8 kW Wood-Burning Sauna Heater

$3,129

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The HUUM HIVE Flow is a highly efficient 9.8 kW wood-burning sauna stove — 75% of the fire’s heat goes into your sauna, not up the chimney. For larger rooms 282 to 635 cu ft, with a 330 lb stone capacity. Made in Estonia.

Categories: , Brand: Product ID: 49590

Description

Efficient wood heat for larger saunas

The HIVE Flow’s innovative design keeps 75% of the firewood’s heat inside your sauna, making it one of the most efficient wood-burning stoves available — now sized for larger rooms from 282 to 635 cu ft.

A big rock bed for deep steam

A 330 lb stone capacity holds a soft, consistent high heat with long-lasting steam — an authentic wood-fired sauna with no wiring.

Simple, elegant, off-grid

Precision-crafted in Estonia. A chimney connection is required for operation.

Required sauna stones (10 boxes) sold separately. Chimney connection required.

Specifications

  • Power: 9.8 kW
  • Fuel: wood
  • Room size: 282–635 cu ft
  • Stone capacity: 330 lb
  • Efficiency: 75% of heat into the room
  • Dimensions: 20.7″W × 24.8″D × 34.8″H
  • Heater weight: 148 lb
  • Warranty: 3-year residential / 1-year commercial

Frequently asked questions

Why is the HIVE Flow so efficient?

Its design directs about 75% of the fire’s heat into the sauna rather than losing it up the chimney.

What size sauna does it suit?

Larger rooms from 282 to 635 cubic feet.

Do I need anything else?

Yes — 10 boxes of sauna stones, sold separately, plus a compatible chimney/flue.

Features

  • Wood-burning
  • Unique design
  • Economical wood use
  • Low environmental impact
  • Mild and long-lasting steam
  • Innovative patent pending furnace construction
  • BImSchV and CPR certificate for compliance
  • Designed, engineered, and made in Estonia
  • 330 pound stone capacity (required 10 boxes sold separately)
  • Dimensions: 20.7"W (53 cm) x 24.8"D (63 cm) x 34.8"H (88 cm)
  • Limited 3-year residential warranty and limited 1-year commercial warranty (excluding elements)

Includes

  • Sauna Stove
  • Metal Grate
  • Heat Resistant Glove
  • Splints
  • Metal Fixing Plates (2)
  • Ash Grate
  • Cleaning Hatches (2)
  • Ash Drawer
  • Installation and Operational Manual
  • 3-Year Limited Residential Warranty and 1-Year Limited Commercial Warranty (Excluding Elements)

Specifications

Model HIVE FLOW
Kilowatt Rating 9.8kW
Primary Fuel Wood
Maximum Firewood Length 16" (40 cm)
Minimum Cubic Feet 282
Maximum Cubic Feet 635
Minimum Room Height 75" (191 cm)
Flue Connection Location Top and Back
Heater Weight 148 lbs (67 kg)
Shipping Weight with Sauna Stones 478 lbs (217 kg)
Safety Distance Front to Back See Installation and Operation Manual
Safety Distance Left to Right See Installation and Operation Manual
Width 20.7" (53 cm)
Depth 24.8" (63 cm)
Height 34.8" (88 cm)

Shipping

This sauna heater ships by freight on a wooden pallet, protected in three-ply cardboard, with a scheduled delivery appointment. The carrier handles delivery only and provides limited assistance at the site. Before shipping, we may contact you to confirm the shipment details and discuss any circumstances that could affect delivery.

Sauna accessories can ship together with your heater to save on shipping — consider adding stones, a control, or care products to your order.

For a freight quote or delivery questions, email [email protected] with the heater model number and your full shipping address.

Technical

Product manuals and reference documents (PDF):

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