A high-efficiency stove with a glass door
The HIVE Flow Mini is HUUM's high-efficiency wood stove. HUUM rates it at 75% efficiency, meaning more of each load of firewood ends up as heat in the sauna, and it meets Germany's BImSchV Stage 2 emissions rules.
A large glass door shows the fire, and about 105 kg of stones sit in the cage above.
More stone, softer heat
HUUM heaters hold their stones in the open, around and above the elements. A large stone mass heats the room evenly and gives a long, rolling steam when you pour, without the sharp sting of a small, hot pile.
The size tables list how many 15 kg boxes each model takes, and you can add them to your order above.
Designed and built by HUUM
HUUM designs and builds its heaters, stoves and UKU controls in Estonia. The DROP and CLIFF have both won Red Dot design awards.
Electric heaters and controls carry a 3-year limited warranty for private use (1 year commercial); heating elements are excluded.
Choose your size
Match the heater to your room's volume (length × width × height in feet). Rooms with large glass areas or little insulation usually need the next size up. Not sure? Call (888) 715-7999 and we'll size it for you.
| Model | Room size | Breaker | Control |
|---|---|---|---|
| 8.5 kW | 212–494 ft³ (6–14 m³) | — | — |
What comes with it
- HUUM HIVE Flow Mini stove
- Grate and ash grate
- Ash drawer
- Glove
- 2 cleaning hatches and 2 fixing plates
- Installation and user manual
Ships to Canada and the US.
HUUM HIVE Flow Mini Sauna Stove
- Power
- 8.5 kW
- Room size
- 212 – 494 ft³
- Dimensions
- 884 × 450 × 493 mm (34.8 × 17.7 × 19.4 in)
- Weight
- 54 kg (120 lb) without stones
- Rocks
- About 105 kg / 231 lb (7 boxes of 15 kg, sold separately)
- Distance to combustibles
- Back and sides 150 mm, above 1000 mm; see the manual
- Construction
- Stainless steel
- Made in
- Estonia
- Warranty
- 3-year limited warranty, private use (1 year commercial); elements excluded
Before you order
Something we haven't covered? Call (888) 715-7999 or book a free design call.
Which size fits my sauna room?
The 8.5 kW suits rooms of 212–494 ft³ (6–14 m³). Large windows, glass doors or an uninsulated room can push you up a size. Send us your room dimensions and we'll confirm.
Are sauna stones included?
Stones are sold separately. This heater takes About 105 kg / 231 lb (7 boxes of 15 kg). HUUM sauna stones come in 15 kg (33 lb) boxes, and we can add them to your order.
What electrical work is needed?
A licensed electrician must install the heater and the UKU controller. HUUM requires proof of a licensed installation for warranty claims. Use the breaker size listed for your model and check local code before booking the work. HIVE 12–18 kW heaters run on two circuits and need the extension box.
Do you ship to the US?
Yes. HUUM heaters ship across Canada and to the lower 48 US states. Prices show in your local currency at checkout. Reach out if you are in a remote area and we will confirm delivery.