The HUUM UKU is a digital sauna control system for HUUM electric heaters. You switch the heater on and off and set the heating time and temperature from a wall-mounted control panel. The UKU can also connect the sauna lighting, ventilation and a steamer, and it has overheating protection and a child lock. Choose the Local version, which is operated only from the panel, or a Wi-Fi version, which can also be controlled from your phone with the HUUM app. The panel comes in black, wood, glass, mirror and gold designs. The sauna heater is sold separately.
Choose your model
This page covers seven models: UKU Local, UKU Local Wood, UKU 4.2 Wi-Fi, UKU 4.2 Wi-Fi Wood, UKU Glass, UKU 4.2 Mirror and UKU 4.2 Gold. They share the same control functions and differ in the panel design and in whether Wi-Fi is included. See the Models table below.
Local or Wi-Fi
UKU Local is for saunas without a network connection and is controlled only from the control panel. HUUM says Wi-Fi can be added to a Local unit later through the app, for a fee. The Wi-Fi models suit saunas in areas with Wi-Fi coverage, such as homes, offices or accommodations. With the free HUUM app you can set the start and end time and the target temperature, check the current sauna temperature and get a notification when the sauna is ready. The Wi-Fi module works with 2.4 GHz networks only.
Panel designs
The Wood panels have a handmade case of thermo-treated ash, and each case has its own grain pattern. The Glass, Mirror and Gold panels have a glass surface and can be recessed into the wall, or surface-mounted with the optional surface frame.
Check the fit before you order
The UKU works with HUUM heaters up to 11 kW. For HUUM heaters over 11 kW, up to 18 kW, you also need the UKU Extension Box, which is sold separately. Please check your heater model and its power before you order.
HUUM UKU sauna control system for HUUM electric heaters. Local or Wi-Fi, with black, wood, glass, mirror or gold panels. Controls lighting, ventilation and a steamer, with overheating protection and a child lock.
7 models
Local or Wi-Fi
HUUM app
Overheating protection
Child lock
Lighting, ventilation, steamer
Specifications
Models
| UKU Local |
Local control from the panel only. Black panel. Item no. H2004022 |
| UKU Local Wood |
Local control from the panel only. Wood panel (HUUM code H2002011). Choose in the variant selector |
| UKU 4.2 Wi-Fi |
Wi-Fi and HUUM app. Black panel. Item no. H2005012 |
| UKU 4.2 Wi-Fi Wood |
Wi-Fi and HUUM app. Wood panel (HUUM code H2002011). Choose in the variant selector |
| UKU Glass |
Wi-Fi and HUUM app. Black glass panel (HUUM code H2002021). Item no. H2004032 |
| UKU 4.2 Mirror |
Wi-Fi and HUUM app. Mirror glass panel (HUUM code H2002031). Item no. V2-UKU-WIFI-MIRROR |
| UKU 4.2 Gold |
Wi-Fi and HUUM app. Gold glass panel (HUUM code H2002051). Item no. V2-UKU-WIFI-GOLD |
Product details (all models)
| Brand |
HUUM |
| Product type |
Sauna control system with wall-mounted control panel and main module |
| Compatible with |
HUUM electric sauna heaters |
| Heater power |
Up to 11 kW directly. Over 11 kW, up to 18 kW with the UKU Extension Box (sold separately) |
| Supply voltage |
208 V / 240 V |
| Made in |
Estonia (CE marked) |
Control and functions
| Set temperature |
40-110 °C (104-230 °F), limited by the installed sensors. Up to 90 °C (194 °F) with the bench sensor |
| Heating time options |
1, 3, 6, 12 or 18 hours |
| Safety |
Overheating protection and child lock |
| Steamer output |
2500 W at 240 V (60 Hz) |
| Lamp / ventilation output |
Max 100 W (incandescent, light or fan) or 50 W (LED) at 120 V |
| Door sensor |
Included, with optional lighting and ventilation delay of 10, 15 or 20 minutes |
| Wi-Fi models |
HUUM app for iPhone and Android, 2.4 GHz Wi-Fi only |
| Local models |
Controlled from the panel only. Wi-Fi can be added later for a fee |
Panel and mounting
| Panel designs |
Black, Wood (thermo-treated ash), Glass black, Mirror, Gold |
| Glass panel recess |
65 x 105 x 27 mm (2.56 x 4.13 x 1.06 in) |
| Optional surface frame |
HUUM code H310301 |
| Panel placement |
Inside the sauna, no higher than 100 cm from the floor and at least 50 cm from exhaust vents |
| Main module |
Mount outside the sauna if possible, upright on a wall |
| Sensor cable run |
Max 15 m (50 ft) |
What's included
Control panel (in the design you choose)
Main module (Local or Wi-Fi)
Safety sensor
Bench sensor
2 sensor housings
Door sensor kit
Temperature-resistant cable (up to 205 °C / 401 °F)
Installation and operation manual
Not included: the sauna heater, and the UKU Extension Box needed for heaters over 11 kW. The contents above are for the UKU 4.2 set, so please check the contents for your model with us before you order.
Why the HUUM UKU stands out
Local or Wi-Fi
Operate from the wall panel, or add the HUUM app on the Wi-Fi models.
Seven models
Choose from black, wood, glass, mirror and gold panel designs.
Safe by design
Overheating protection and a child lock.
One system
Connect the sauna lighting, ventilation and a steamer.
Your phone as remote
The HUUM app sets start and end times and target temperature, and tells you when the sauna is ready.
Handmade wood
The Wood panel has a handmade thermo-treated ash case with a unique grain.
Sensor-based
Includes a safety sensor, a bench sensor and a door sensor kit.
Authorized HUUM dealer
We are an authorized HUUM dealer and can help you choose the right control for your heater.
About HUUM
HUUM - UKU - Control Units
HUUM UKU. Control your sauna from the wall or your phone.
HUUM is an Estonian sauna heater brand with a minimalist Nordic design, founded by Siim Nellis, who is the third in his family to build sauna stoves. Its heaters and stoves are made in Estonia from stainless steel and other quality materials, and its products have won international design awards, including the Red Dot Award and the European Product Design Award. The UKU is the control system for its electric heaters, available as a Local or Wi-Fi model in several panel designs. We are an authorized HUUM dealer.
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Seven models: Local, Wi-Fi, Wood, Glass, Mirror and Gold
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HUUM heaters up to 11 kW, up to 18 kW with the Extension Box
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Overheating protection and child lock
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HUUM app on the Wi-Fi models
Manuals and Documents
