Best Price and Service Guarantee

Sauna Marketplace offers legendary customer service and support. Odds are you landed here from a referral — because we don’t advertise.

That doesn’t mean you should have to pay more. We always honor the lowest prices allowed by our manufacturers. If you find a lower advertised price from an authorized dealer, send us a screenshot and we’ll match it.

We want you to feel great about your purchase for decades. That’s why we also offer free shipping on sauna accessories for life with the purchase of any sauna or sauna heater on Sauna Marketplace.

Shop Saunas | Shop Sauna Heaters

Specs
Certifications & ListingsSGS
Assembled Dimensions3.54″W (90mm) x 2.28″D (58mm) x 5.6″H (142mm)
Product Weight5 lbs (2.26kg)
Model NumberUKU-WIFI-MODULE
SKU / Part NumberSP0030
Included ComponentsMain Wifi Control Module
Residential WarrantyNo Warranty years
Part numberSP0030
BB SKU535-UKU-WIFI-MODULE
UPC4744103013135
Heater capacityUp to 11 kW; above that a UKU Extension Box is required
Max working environment temperature122°F (50°C)
Minimum operating temperature-40°F (-40°C)
Wi-Fi802.11 b/g/n, 2.4 GHz networks only; network name and password limited to 20 characters
Protection degreeIP67, with the supplied cable glands fitted
Weight5 lb
ReturnableNo — replacement part
Includes

What Is Included

All configurations

Included with purchase

Main wifi control module.

Package contents and sold-separately requirements can vary by selection; use the row for the exact configuration chosen above.

How It Fits

How This Product Fits the System

What it is used for

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.

What to plan

  • Match heater family, voltage, phase, maximum load, power unit, sensors, and control generation as one system.
  • Confirm whether the selected package includes the display, main module, sensors, cables, and any required extension box.
  • Sensor placement, door interlock, remote-start rules, and cable routing must follow the current control manual.

Designed to work with

Exact-family replacements and system components are linked here with their specific use.

Verified model-specific facts are kept in Technical Specifications, while current manuals and support files are kept in Manuals & Documents. If an exact source does not resolve a value or relationship, this page leaves it open instead of borrowing from a neighboring model.

Attachments
Gallery

HUUM UKU Wi-Fi Main Module | SP0030

Replacement main module for the HUUM UKU Wi-Fi control system, the switching and connectivity box that sits between the panel, the sensors and the heater. Not returnable.

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$1,258.00

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Built for these

What’s included

  • Main Wi-Fi control module

What it is

This is the replacement part for the HUUM UKU Wi-Fi Main Module. The main module is the box the heater, the display panel, the temperature sensor and the door sensor all wire into; the panel is only the interface. Installation is electrical work for a licensed electrician.

What the UKU manual says about the main module

  • “The main module can be used with heaters up to 11 kW. For more powerful models, you need to use an extension box”. Our own UKU listing says the same thing: full-size HIVE 12, 15 and 18 require the UKU Extension Box.
  • It “should be installed outside of the sauna/steam room and placed in a weatherproof housing to protect it from direct contact with water, snow, and condensed water.”
  • If outside installation is impossible, it may go inside the sauna room, where it “should not be positioned higher than 4 inches” and must be “at least 6 feet (70.9 in) away from the heater, ideally under the sauna bench”.
  • “The maximum working environment temperature for the main module is 122°F”, and it functions down to -40°F.
  • Fix it upright with four screws (not included), cable openings facing downwards, never on a ceiling or an inclined surface, and leave the access panel reachable.
  • “WARNING! If the cable glands are not used, the IP class of the device does not apply!”

Network

The module carries the Wi-Fi radio: 802.11 b/g/n, 2.4 GHz networks only, and it “doesn’t support WiFi network names and passwords longer than 20 characters”. Your sauna’s ID, the code your HUUM app account is linked to, is on a sticker in the upper right corner of the main module cover.

Upgrading a UKU Local system

If you have a UKU Local and want Wi-Fi, you do not need this module. The manual: “If you have purchased a UKU Local control system, but want to add WiFi capability to it, you can do so in the HUUM mobile application. The upgrade is activated remotely for an additional fee and does not require an on-site technician.”

Before ordering a replacement module

Voltage readings taken by a licensed electrician are what decide whether the module has failed. You will want the incoming supply measured line to line (L1 to L2, not one leg to neutral) along with L1 to ground, L2 to ground, and the DC readings between the main module and the control panel. Supply present at the input with no voltage on the module’s output terminals (U and V) is the reading that points at the module itself.

Specifications

Part number SP0030
UPC 4744103013135
Heater capacity Up to 11 kW without an extension box
Max working environment temperature 122°F
Minimum operating temperature -40°F
Wi-Fi 802.11 b/g/n, 2.4 GHz only
Protection degree IP67, with the cable glands fitted
Weight 5 lb
Listings SGS

To preserve the originality, operation and safety of replacement parts, this product is not returnable.

Often bought with the HUUM UKU Sauna Control | Local & Wi-Fi Packages

What customers building this room most often add alongside it.

Best Price and Service Guarantee

Sauna Marketplace offers legendary customer service and support. Odds are you landed here from a referral — because we don’t advertise.

That doesn’t mean you should have to pay more. We always honor the lowest prices allowed by our manufacturers. If you find a lower advertised price from an authorized dealer, send us a screenshot and we’ll match it.

We want you to feel great about your purchase for decades. That’s why we also offer free shipping on sauna accessories for life with the purchase of any sauna or sauna heater on Sauna Marketplace.

Shop Saunas | Shop Sauna Heaters

Specs
Certifications & ListingsSGS
Assembled Dimensions3.54″W (90mm) x 2.28″D (58mm) x 5.6″H (142mm)
Product Weight5 lbs (2.26kg)
Model NumberUKU-WIFI-MODULE
SKU / Part NumberSP0030
Included ComponentsMain Wifi Control Module
Residential WarrantyNo Warranty years
Part numberSP0030
BB SKU535-UKU-WIFI-MODULE
UPC4744103013135
Heater capacityUp to 11 kW; above that a UKU Extension Box is required
Max working environment temperature122°F (50°C)
Minimum operating temperature-40°F (-40°C)
Wi-Fi802.11 b/g/n, 2.4 GHz networks only; network name and password limited to 20 characters
Protection degreeIP67, with the supplied cable glands fitted
Weight5 lb
ReturnableNo — replacement part
Includes

What Is Included

All configurations

Included with purchase

Main wifi control module.

Package contents and sold-separately requirements can vary by selection; use the row for the exact configuration chosen above.

How It Fits

How This Product Fits the System

What it is used for

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.

What to plan

  • Match heater family, voltage, phase, maximum load, power unit, sensors, and control generation as one system.
  • Confirm whether the selected package includes the display, main module, sensors, cables, and any required extension box.
  • Sensor placement, door interlock, remote-start rules, and cable routing must follow the current control manual.

Designed to work with

Exact-family replacements and system components are linked here with their specific use.

Verified model-specific facts are kept in Technical Specifications, while current manuals and support files are kept in Manuals & Documents. If an exact source does not resolve a value or relationship, this page leaves it open instead of borrowing from a neighboring model.

Attachments
Gallery

PLAN THE WHOLE SAUNA

The room and heater still have to work as one system.

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.