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Hive Flow
The Huum Hive Flow wood-burning sauna heater is designed to make the most of every piece of firewood, directing around 75% of the heat into the sauna rather than losing it through the flue. The result is an efficient, clean-burning heater that delivers plenty of heat while making better use of your firewood.
With its generous stone capacity, the Huum Hive Flow holds 105kg or 150kg of sauna stones depending on the model, helping to create a soft, lasting heat and plenty of steam. Even after the fire has gone out, the large stone mass continues to provide steady steam for more than 30 minutes, allowing you to enjoy a longer sauna session without constantly feeding the fire.
The Huum Hive Flow is also designed with lower emissions in mind, producing just 346 mg/m³ of CO emissions and 25 mg/m³ of particulate matter, making it one of the cleanest-burning wood-fired sauna heaters in its class. Efficient, clean-burning and built for a memorable sauna experience, the Huum Hive Flow is a great choice for those who want the traditional experience of a wood-fired sauna with modern efficiency.
The Huum Hive Flow is compatible with Malby Chimney Set, Varvik Chimney Set or Alvik Chimney Set and is available with Huum Rounded Sauna Stones.
Dimensions
Tech data
Heater
| 8.5kW | 8.5kW LS | 9.8kW | 9.8kW LS | |
|---|---|---|---|---|
| Sauna Room | 6–14 m³ | 6–14 m³ | 8–18 m³ | 8–18 m³ |
| Stone Capacity | 105 kg | 105 kg | 150 kg | 150 kg |
| Weight | 54 kg | 54 kg | 67kg | 73 kg |
| Height | 884 mm | 884 mm | 884 mm | 884 mm |
| Width | 450 mm | 450 mm | 526 mm | 526 mm |
| Depth | 493 mm | 613 mm | 586 mm | 706 mm |
| Firewood Max | 300 mm | 300 mm | 300 mm | 300 mm |
| Flue Diameter | 114 mm | 114 mm | 114 mm | 114 mm |
Safety Distances
| 8.5kW | 8.5kW LS | 9.8kW | 9.8kW LS | |
|---|---|---|---|---|
| A | 150 mm | 150 mm | 150 mm | 150 mm |
| B | 500 mm | 500 mm | 500 mm | 500 mm |
| C | 1000 mm | 1000 mm | 1000 mm | 1000 mm |
Useful Resources
Hive Flow - 8.5 kW (Mini) / Standard / With Stones (per capacity)
$4,258.00
SAUNA CALCULATOR
Use our sauna calculator to help you find which heater best suits your sauna space.
Customer service
Not sure which sauna suits your home? Call our expert team on 1800 439 737 for personalised guidance and support.
Warranty
All of our sauna products come with a warranty. Visit our warranty page for specific information.
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FAQs
Have a question ? We are here to help.
Can I install a sauna in a small space or apartment?
Certainly! We have a number of heaters that are perfect for smaller sauna rooms like the
Core and Drop heaters from Huum, or the Routa heater from Tulikivi.
Probably the most important thing to consider when choosing a heater where space is a premium is the heater’s safety distance, or how far it needs to be kept from
the wall.
In order to maximise the space you have for people in a smaller sauna you may wish to install a heat deflector on your heater to which halves the safety distance required on that side of the heater.
How do I choose the right size heater?
The size of the heater should be chosen based on the sauna room size and insulation. Choosing the right size is important. If the heater is too small, it will heat the sauna too slowly, it won’t provide enough steam, and it might burn out quicker. It is better to opt for a slightly too powerful heater with a thermostat. You need 1 kW of power to heat 1 m³ of the sauna room as a rule of thumb. The second important thing to consider is how the sauna room is insulated. If there are any uninsulated brick, tile, glass or log walls in the sauna room. An additional 1.5 m³ for each m² of such wall should be added to the sauna room size calculation. You can use our sauna calculator to find out the volume of your sauna room. If in doubt, please contact our friendly team, and we will help you find the perfect heater for your sauna!
What is the lifespan of the equipment?
With proper care, a good-quality sauna can last you 10–20 years, easy. Heaters and electrical components might need replacing
sooner depending on use, but overall they’re built to go the distance.
