
HUUM Hive 15 package: a 15 kW heater with control, extension box, and stones for saunas from 530 to 1,060 cubic feet
The HUUM Hive 15 package bundles the floor standing Hive 15 electric sauna heater with its control, the extension box, and a full load of stones, for large rooms from 530 to 1,060 cubic feet in homes, gyms, and spas. Made in Estonia, the 15 kW heater has a round stainless steel body on adjustable legs. It measures 22 inches across and 29.5 inches tall and weighs 46 pounds empty. It holds a full 552 pounds of stones directly on the heating elements, giving a large room soft, even heat and plenty of steam.
The package includes the heater, a HUUM UKU control with its sensors and cables, the UKU extension box, and 552 pounds of rounded olivine sauna stones. The extension box is needed for the control at this power. The UKU sets the temperature from 104 to 230 degrees and can start the sauna up to 48 hours ahead. On the page you choose the control: the standard UKU, or the Wi-Fi, Mirror, or Gold version that lets you start the sauna from your phone. A safety rail, an embedding flange, a reflector panel, and a bucket and ladle set are optional. Need the biggest HUUM? See the HUUM Hive 18 heater package. The HUUM Hive 15 package ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Features
Hive Series 15.0kW Sauna Heater
- Elegant design
- Suitable for commercial use
- 240V/1PH operation
- For sauna rooms from 530 to 1060 cu. ft.
- Works with UKU controls
- Works with UKU extension box
- Large 552-pound stone capacity or 463lbs with use of HIVE air tunnel
- Direct contact between stones and heating elements
- More exposed stones create a longer and milder heat
- Stainless steel construction
- Stainless steel, industrial quality heating elements
- Floor model with adjustable legs
- Designed, engineered, and made in Estonia
- Dimensions: 22″ Diameter (560mm) x 29.5″ H (750mm)
- SGS Listed
- Limited 5-year warranty (excluding elements)
UKU
- Sleek Black control display panel
- Multiple Color Options available (additional charges apply)
- Settable on/off, time, temperature, and delay
- Settable temperature range of 104-230F
- Delayed start up to 48hrs in advance
- Optional Built-in Wi-Fi interface for HUUM mobile app (additional charges apply)
- 8 Language options: English, German, Russian, Italian, Finnish, Estonian, Polish and French
- Inside/outside sauna room installation
- Optional smart heating setting
- Available decorative control display panels
- Displays set temperature and room temperature
- Temperature sensor
- Door sensor to keep the heat inside the room
- Remotely located main control module
- Connects to lights and ventilation
- Overheat protection
- Child safety lock
- Control Console Dimensions: 2.2″W (55mm) x 0.9″D (22mm) x 4.1″H (105mm)
- Main Control Module Dimensions: 3.5″W (90mm) x 2.3″D (58mm) x 5.6″H (142mm)
Stones 24
- Olivine diabase sauna stones
- Rounded shape to complement heater design
- Durable with high-heat capacity
- Stones range from 2″ to 4″ (5-10 cm)
Includes
HIVE Series 15.0kW Sauna Heater
- 15.0kW Sauna heater
- Adjustable legs
- Installation and operation manual
- Limited 5-year warranty (excluding elements)
UKU
- Black Control console
- Main control module
- Temperature sensor
- Door sensor
- Control display panel cable
- Temperature sensor cable
- Door sensor cable
- Installation and operation manual
- 5-Year limited warranty
Extension Box
- For use with UKU controls
- For heaters over 11kW
- Dimensions: 7″W (178mm) x 6″D (152mm)7″H (178mm)
Stones 24
- 552 lbs of 2″ – 4″ (5-10 cm) round Olivine sauna stones
FAQ
What do I get in the HIVE 15 package?
The 15kW floor-standing heater with adjustable legs, a full UKU control system, the UKU extension box, and 552 pounds of round olivine stones in the 2 to 4 inch size, per the includes tab. The description calls it all-inclusive for good reason.
What room size does it target?
Rooms from 530 to 1,060 cubic feet per the specification table – firmly in commercial or very large residential territory. Every size in the HUUM sauna heater range lists its own cubic-feet window, so match your measured volume first.
What control features come with it?
The UKU control offers settable on/off, time, and temperature from 104 to 230 degrees Fahrenheit, delayed start up to 48 hours, a door sensor, overheat protection, and a child safety lock. Wi-Fi versions in the on-page options add HUUM app control from your phone.
What is the extension box for?
It extends the UKU control to heaters over 11kW, per the includes tab – at 15kW this model requires it, which is why the package bundles it rather than leaving it as a separate purchase. The installer wires it alongside the main control module.
What are the power requirements?
62.5 amps at 240V single-phase, with the breaker column reading 50 + 50 and wire size 8 + 8 AWG – two dedicated circuits per the specification table. Electrical work of that scale belongs to a licensed electrician following the manual and local code.
What warranty backs the package?
A limited 5-year warranty, excluding the heating elements on the heater. The HIVE heater is SGS Listed, stainless steel, suitable for commercial use, and precision-crafted in Estonia, so the warranty sits on top of a build intended for constant duty.
Shipping
The weight or packaging of this product requires delivery by special appointment, and on a wooden pallet.
The driver is responsible for curbside delivery “only” and will lower the items to ground level.
Prior to shipping this product, we contact customers to share shipment details and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses.