Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.
Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.
We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.
Sauna and heater customers also receive free shipping on sauna accessories for life.
Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.
| Control Package | Local Black, Local Wood, WiFi Black, WiFi Glass, WiFi Gold, WiFi Mirror, WiFi Wood |
|---|---|
| Shipping CostPlease inquire if shipping outside the continental USA. | Free |
| Made in | EstoniaAcross the Gulf of Finland, Estonia has a vibrant and growing sauna industry. They're known for innovative design, modern manufacturing, and premium sauna products at an affordable price. |
| Warranty | 3 |
| Direct Heater Capacity | Up to 11 kW; larger heaters require the UKU Extension Box |
Black control display panel, 2.16"w × 0.86"d × 4.13"h main local control module, 3.54"w × 2.28"d × 5.6"h temperature sensor door sensor control display panel cable, 9.84', 12awg temperature sensor cable, 16.4', 14awg door sensor cable, 16.4', 14awg installation and operation manual.
Black control display panel, 2.16"w × 0.86"d × 4.13"h main wifi control module, 3.54"w × 2.28"d × 5.6"h temperature sensor door sensor control display panel cable, 9.84', 12awg temperature sensor cable, 16.4', 14awg door sensor cable, 16.4', 14awg installation and operation manual.
Wood control display panel, 2.16"w × 0.86"d × 4.13"h main wifi control module, 3.54"w × 2.28"d × 5.6"h temperature sensor door sensor control display panel cable, 9.84', 12awg temperature sensor cable, 16.4', 14awg door sensor cable, 16.4', 14awg installation and operation manual.
Wood control display panel, 2.16"w × 0.86"d × 4.13"h main local control module, 3.54"w × 2.28"d × 5.6"h temperature sensor door sensor control display panel cable, 9.84', 12awg temperature sensor cable, 16.4', 14awg door sensor cable, 16.4', 14awg installation and operation manual.
Glass control display panel, 3.54"w × 0.86"d × 5.12"h main glass control module, 6.5"w × 2.56"d × 9.64"h temperature sensor door sensor control display panel cable, 9.84', 12awg temperature sensor cable, 16.4', 14awg door sensor cable, 16.4', 14awg installation and operation manual.
Gold control display panel, 3.54"w × 0.86"d × 5.12"h control display panel cable, 9.84', 22awg main mirror control module, 6.5"w × 2.56"d × 9.64"h temperature sensor door sensor temperature sensor cable, 16.4', 24awg door sensor cable, 16.4', 24awg installation and operation manual.
Mirror control display panel, 3.54"w × 0.86"d × 5.12"h control display panel cable, 9.84', 22awg main mirror control module, 6.5"w × 2.56"d × 9.64"h temperature sensor door sensor temperature sensor cable, 16.4', 24awg door sensor cable, 16.4', 24awg installation and operation manual.
Contents vary by configuration. Check the row for the option selected above.
The external control system for compatible HUUM electric heaters. Select the correct local or Wi-Fi package and add an extension box when the heater load requires one.
Complete the system with these items.
Optional upgrades and accessories.
This item is used by the following products.
Official HUUM US/Canada UKU 4.2 installation and operation manual. Use only after the supplied or installed hardware is verified as UKU 4.2; a controller package name or commerce SKU does not establish its hardware generation.
Official HUUM US/Canada UKU 4.1 installation and operation manual. Use only after the supplied or installed hardware is verified as UKU 4.1; a controller package name or commerce SKU does not establish its hardware generation.
Current official HUUM limited warranty terms linked from HUUM's U.S. warranty page and verified by Sauna Marketplace on 2026-08-08.
Use these only when the document revision matches the installed product.
Archived by Sauna Marketplace; retained for installed-base and historical-link support.
HUUM UKU is the control system for current HUUM electric heaters and many compatible third-party heaters. Choose Local for on-panel operation or Wi-Fi for app control, scheduling, and remote start. Available U.S. packages are Local Black, Local Wood, Wi-Fi Black, Wi-Fi Wood, Wi-Fi Glass, Wi-Fi Mirror, and Wi-Fi Gold.
$1,062.00 – $1,987.00Price range: $1,062.00 through $1,987.00
We added you to this product's waitlist and we'll send you an email when the product is available.
Leave WaitlistNo worries! Enter your email, and we'll let you know as soon as it's back in stock.
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Both systems include the control panel, main module, temperature sensor, door sensor, and installation hardware required by the package. UKU Local starts at the wall panel. UKU Wi-Fi adds the HUUM mobile app for remote start, schedules, target temperature, and status.
UKU 4.1 operates current HUUM electric heaters directly through 11 kW. Full-size HIVE 12, 15, and 18 require the UKU Extension Box. Final cable gauge comes from the heater manual, and a licensed electrician must install the control and heater.
The current manual permits qualifying control panels inside the sauna only within its location and ventilation limits. The supplied door sensor is part of the remote-start safety system. Do not omit or bypass it.
See Manuals & Documents for planning. During installation, follow the manual supplied with the controller.
Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.
Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.
We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.
Sauna and heater customers also receive free shipping on sauna accessories for life.
Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.
| Control Package | Local Black, Local Wood, WiFi Black, WiFi Glass, WiFi Gold, WiFi Mirror, WiFi Wood |
|---|---|
| Shipping CostPlease inquire if shipping outside the continental USA. | Free |
| Made in | EstoniaAcross the Gulf of Finland, Estonia has a vibrant and growing sauna industry. They're known for innovative design, modern manufacturing, and premium sauna products at an affordable price. |
| Warranty | 3 |
| Direct Heater Capacity | Up to 11 kW; larger heaters require the UKU Extension Box |
Black control display panel, 2.16"w × 0.86"d × 4.13"h main local control module, 3.54"w × 2.28"d × 5.6"h temperature sensor door sensor control display panel cable, 9.84', 12awg temperature sensor cable, 16.4', 14awg door sensor cable, 16.4', 14awg installation and operation manual.
Black control display panel, 2.16"w × 0.86"d × 4.13"h main wifi control module, 3.54"w × 2.28"d × 5.6"h temperature sensor door sensor control display panel cable, 9.84', 12awg temperature sensor cable, 16.4', 14awg door sensor cable, 16.4', 14awg installation and operation manual.
Wood control display panel, 2.16"w × 0.86"d × 4.13"h main wifi control module, 3.54"w × 2.28"d × 5.6"h temperature sensor door sensor control display panel cable, 9.84', 12awg temperature sensor cable, 16.4', 14awg door sensor cable, 16.4', 14awg installation and operation manual.
Wood control display panel, 2.16"w × 0.86"d × 4.13"h main local control module, 3.54"w × 2.28"d × 5.6"h temperature sensor door sensor control display panel cable, 9.84', 12awg temperature sensor cable, 16.4', 14awg door sensor cable, 16.4', 14awg installation and operation manual.
Glass control display panel, 3.54"w × 0.86"d × 5.12"h main glass control module, 6.5"w × 2.56"d × 9.64"h temperature sensor door sensor control display panel cable, 9.84', 12awg temperature sensor cable, 16.4', 14awg door sensor cable, 16.4', 14awg installation and operation manual.
Gold control display panel, 3.54"w × 0.86"d × 5.12"h control display panel cable, 9.84', 22awg main mirror control module, 6.5"w × 2.56"d × 9.64"h temperature sensor door sensor temperature sensor cable, 16.4', 24awg door sensor cable, 16.4', 24awg installation and operation manual.
Mirror control display panel, 3.54"w × 0.86"d × 5.12"h control display panel cable, 9.84', 22awg main mirror control module, 6.5"w × 2.56"d × 9.64"h temperature sensor door sensor temperature sensor cable, 16.4', 24awg door sensor cable, 16.4', 24awg installation and operation manual.
Contents vary by configuration. Check the row for the option selected above.
The external control system for compatible HUUM electric heaters. Select the correct local or Wi-Fi package and add an extension box when the heater load requires one.
Complete the system with these items.
Optional upgrades and accessories.
This item is used by the following products.
Official HUUM US/Canada UKU 4.2 installation and operation manual. Use only after the supplied or installed hardware is verified as UKU 4.2; a controller package name or commerce SKU does not establish its hardware generation.
Official HUUM US/Canada UKU 4.1 installation and operation manual. Use only after the supplied or installed hardware is verified as UKU 4.1; a controller package name or commerce SKU does not establish its hardware generation.
Current official HUUM limited warranty terms linked from HUUM's U.S. warranty page and verified by Sauna Marketplace on 2026-08-08.
Use these only when the document revision matches the installed product.
Archived by Sauna Marketplace; retained for installed-base and historical-link support.
PLAN THE WHOLE SAUNA
Start with the room dimensions, then account for glass, masonry, insulation, ceiling height, required clearances, and available electrical service. That is how we move from a product that looks right to a sauna that heats evenly and comfortably.
See electric sauna heaters by output, stone mass, control style, and installation type. Size from adjusted room volume, not floor dimensions alone.
Shop sauna heaters →Explore indoor and outdoor saunas when you are planning beyond one component. Starting with the room makes heater size, controls, and accessories easier to get right.
Explore complete saunas →Local Bench Time and Sales
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