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HUUM

HUUM HIVE Flow Wood Burning Sauna Heater

€1.890,95

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Free UK Mainland Delivery over £500*

Expert Technical Support

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Full HUUM Manufacturer Warranty

Quantity

Buy together with:

HUUM HIVE Flow Wood Burning Sauna Heater (HIVE Flow)

+ €1.890,95

HUUM Sauna Stones - Rounded Olivine Diabase 15kg (5-10 cm)

+ €609,50 (€60,95 x 10)

HUUM Chimney Set for Wood Burning Sauna Heater (Through the Ceiling)

+ €877,95

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HUUM HIVE Flow Wood Burning Sauna Heater Wood Burning Sauna Heater | Finnmark Sauna

The Science of Sauna. The Art of HUUM®.

The HUUM HIVE Flow heater represents the vanguard of wood-fired sauna technology, boasting a patented, highly efficient furnace that dramatically reduces environmental impact while harnessing its considerable stone capacity to deliver an extended, gentle steam experience.

Fire, Stone, and Pure Heat Alchemy.

HUUM's wood-burning stoves fuse ancient tradition with advanced engineering, featuring unique air circulation and combustion structures for exceptional heat efficiency. This meticulous design ensures near-total wood burn-out and minimises environmental impact, while the large stone capacity delivers a consistent, supremely mild löyly.

Description

HUUM HIVE Flow Wood Burning Sauna Heater

About this HUUM Wood Burning Sauna Heater

stones & flue kit to be purchased separately

The HIVE Flow wood burning sauna heater is a standout in efficiency and eco-friendliness. Its innovative design ensures that 75% of the heat from the firewood thoroughly warms the sauna, minimizing heat loss through the flue or the chimney. The substantial volume of sauna stones retains heat, providing warmth and steam even a while after the fire has burned out.

The model holds up to 150kg of sauna stones (5-10 cm). Please check the recommended quantity of sauna stones for each of the HIVE Flow models under the "Technical Specification" tab above.

*You can browse our sauna flue kits and chimney parts here.

Features of the HIVE Flow Wood Burning Sauna Heater

Sustainability: Ideal for those who prioritize environmental sustainability and a memorable sauna experience, the heater boasts CO emissions of just 346 mg/m³, significantly lower than the 1000 mg/m³ found in similar stoves. Its particulate matter output is only 25 mg/m³, the lowest in its class.

Unique Design: The design of HIVE Flow stove reduces fire risk, allowing for a snug installation compared to traditional heaters. It features a robust structure with a 5mm thick top and 3mm thick sides, ensuring even heat distribution.

Large Stone Capacity for a Soft Steam: Weighing 67 kg (73 kg for the LS model), it can hold up to 150 kg of sauna stones, with an additional 35-40 kg in the stone cage.

A Large Glass Furnace Door: The glass door enhances the cozy ambiance of your sauna, allowing you to enjoy the mesmerizing flames.

The HIVE Flow meets stringent environmental standards and exceeds all known efficiency and environmental metrics for wood burning sauna heaters, making it a high-quality, sustainable choice for your sauna.

For those with smaller spaces, the HIVE Flow is also available in the Mini and Mini LS Tunnel Model, both of which hold 105 kg of sauna stones. With the stone cage, you can add an additional 35-40 kg of sauna stones.

Safety Distances: See the wider image bank of this heater for a diagram for the minimum required safety distances. The values can be found in Technical Specifications.

*SUFFICIENT AMOUNT OF STONES & CONNECTING FLUE/CHIMNEY KITS TO BE PURCHASED SEPARATELY

Warranty Information

For full details on product warranty, see HUUM's Limited Warranty Terms and Conditions

About HUUM

HUUM is the leading manufacturer when it comes to unique designs and technology. HUUM has been awarded for their innovative and stylish sauna products. In 2015, the DROP sauna heater won the Red Dot Award for Product Design. The inspiration for the HUUM products come from nature. Combined with age-old sauna knowledge, smart technology and modern Nordic design, the HUUM heaters are a stylish and robust choice for any sauna. The amount of stones in HUUM heaters are optimized for the perfect, soft steam experience. The innovative HUUM heaters are easy to use and have all been UK CA- certified.

If you want to learn more about our HUUM heaters and explore more options, click on the following link: Our HUUM sauna heater collection.

Technical Specification

Heater Model	HIVE Flow	HIVE Flow Mini	HIVE Flow LS (Tunnel)	HIVE Flow Mini LS (Tunnel)
Power rating	9.8 kW	8.5 kW	9.8 kW	8.5 kW
Size of sauna	8-18 m3	6-14 m3	8-18 m3	6-14 m3
Max. Amount of stones	150 kg	105 kg	150 kg	105 kg
Weight without sauna stones	67 kg	54 kg	73 kg	59 kg
Height	884 mm	884 mm	884 mm	884 mm
Width	526 mm	450 mm	526 mm	450 mm
Depth	586 mm	493 mm	706 mm	613 mm
Firewood max.	300 mm	300 mm	300 mm	300 mm
Flue diameter	114 mm	114 mm	114 mm	114 mm
Safety distance A	150 mm	150 mm	150 mm	150 mm
Safety distance B	500 mm	500 mm	500 mm	500 mm
Safety distance C	826 mm	750 mm	826 mm	750 mm

Installation

Downloads

HUUM HIVE Flow Wood-Burning Sauna Heater - Installation Manual

Delivery & Returns

For details, see our delivery information here.

Christmas and New Year's Delivery Notice

Please note the following changes to our pallet shipping and DPD delivery service on parcel orders over the Christmas period.

Our warehouse is fully closed for operation over the following days: Wednesday 24 December, Thursday 25 December, Friday 26 December, Wednesday 31 December and Thursday 1 January.

Orders requiring a pallet

The last dispatch date for orders requiring a pallet is Friday 19th December 2025. Pallet orders dispatched on this day must be booked and signed for with one of our sales team representatives latest by close of business on Friday 19th December 2025.

Please note:

Pallets dispatched on 19th December will be delivered on either 22nd or 23rd December, depending on your postcode
We strongly advise against booking deliveries to the Highlands or Channel Islands close to the 19th December, as these may be held at the hub over the festive period
There may be limited availability for pallet shipping on this day and we cannot guarantee that available slots remain

We will commence our regular pallet shipping service on Monday 5th January 2026.

If you have any questions about your pallet order, please get in touch with our Sales team: +44 (0) 20 8050 2895 or email info@finnmarksauna.com

Small Parcel Orders

DPD will deliver as normal up to and including Tuesday 23rd December 2025. Orders for next day delivery must be placed latest by 3pm.

Limited dispatch service: We will dispatch DPD orders on Monday 29th December and Tuesday 30th December only during the festive closure period.

We will commence our regular delivery service on Monday 5th January 2026.

*Estimated delivery times are applicable to the UK mainland only (excludes Highlands and Islands). Additional delays and charges will be required for Non-UK Mainland and Highlands and Islands deliveries.

Installation Videos

Description

Technical Specification

Installation

Downloads

Delivery & Returns

Installation Videos

HUUM HIVE Flow Wood Burning Sauna Heater

About this HUUM Wood Burning Sauna Heater

stones & flue kit to be purchased separately

The HIVE Flow wood burning sauna heater is a standout in efficiency and eco-friendliness. Its innovative design ensures that 75% of the heat from the firewood thoroughly warms the sauna, minimizing heat loss through the flue or the chimney. The substantial volume of sauna stones retains heat, providing warmth and steam even a while after the fire has burned out.

The model holds up to 150kg of sauna stones (5-10 cm). Please check the recommended quantity of sauna stones for each of the HIVE Flow models under the "Technical Specification" tab above.

*You can browse our sauna flue kits and chimney parts here.

Features of the HIVE Flow Wood Burning Sauna Heater

Sustainability: Ideal for those who prioritize environmental sustainability and a memorable sauna experience, the heater boasts CO emissions of just 346 mg/m³, significantly lower than the 1000 mg/m³ found in similar stoves. Its particulate matter output is only 25 mg/m³, the lowest in its class.

Unique Design: The design of HIVE Flow stove reduces fire risk, allowing for a snug installation compared to traditional heaters. It features a robust structure with a 5mm thick top and 3mm thick sides, ensuring even heat distribution.

Large Stone Capacity for a Soft Steam: Weighing 67 kg (73 kg for the LS model), it can hold up to 150 kg of sauna stones, with an additional 35-40 kg in the stone cage.

A Large Glass Furnace Door: The glass door enhances the cozy ambiance of your sauna, allowing you to enjoy the mesmerizing flames.

The HIVE Flow meets stringent environmental standards and exceeds all known efficiency and environmental metrics for wood burning sauna heaters, making it a high-quality, sustainable choice for your sauna.

For those with smaller spaces, the HIVE Flow is also available in the Mini and Mini LS Tunnel Model, both of which hold 105 kg of sauna stones. With the stone cage, you can add an additional 35-40 kg of sauna stones.

Safety Distances: See the wider image bank of this heater for a diagram for the minimum required safety distances. The values can be found in Technical Specifications.

*SUFFICIENT AMOUNT OF STONES & CONNECTING FLUE/CHIMNEY KITS TO BE PURCHASED SEPARATELY

Warranty Information

For full details on product warranty, see HUUM's Limited Warranty Terms and Conditions

About HUUM

HUUM is the leading manufacturer when it comes to unique designs and technology. HUUM has been awarded for their innovative and stylish sauna products. In 2015, the DROP sauna heater won the Red Dot Award for Product Design. The inspiration for the HUUM products come from nature. Combined with age-old sauna knowledge, smart technology and modern Nordic design, the HUUM heaters are a stylish and robust choice for any sauna. The amount of stones in HUUM heaters are optimized for the perfect, soft steam experience. The innovative HUUM heaters are easy to use and have all been UK CA- certified.

If you want to learn more about our HUUM heaters and explore more options, click on the following link: Our HUUM sauna heater collection.