Speak with our sauna experts: +1 931-525-3504

Free shipping on all orders above $100! | Speak with our sauna experts: +1 931-525-3504

Your cart

Your cart is empty

HUUM UKU Extension Box

by HUUM
SKU: HUU-H2003012
Regular price $625.00
Unit price
per

The HUUM UKU Extension Box is designed to expand the functionality of the UKU sauna control system, allowing for seamless integration with additional sauna components. This durable and reliable extension box ensures safe and efficient operation, making it an essential accessory for customized sauna setups.

  • Compatibility: The UKU Extension Box is designed for seamless integration with UKU Controls, serving as a necessary component for HUUM sauna heaters exceeding 12kW in power output.
  • Required for High-Powered Heaters: This extension box is specifically required for all HUUM sauna heaters with a power output exceeding 12kW, ensuring compliance with safety standards and regulatory requirements.
  • Light Grey Design: Featuring a light grey exterior, the extension box offers a sleek and modern appearance that complements various sauna environments and decor styles.
  • Wall-Mounted Design: The extension box is designed for wall-mounted installation, providing a secure and convenient mounting solution that helps conserve space within the sauna area.
  • High-Quality Construction: Crafted with precision engineering and quality materials, the extension box is designed, engineered, and made in Estonia to meet stringent performance and durability standards.
  • SGS Listed: The extension box is SGS listed, indicating compliance with international safety and quality standards, ensuring peace of mind for users.
  • Dimensions: With dimensions measuring 7″ in width, 4″ in depth, and 10″ in height, the extension box offers a compact yet functional design suitable for various sauna installations.
  • 5-Year Limited Warranty: Backed by a 5-year limited warranty for quality assurance and peace of mind.
  • Model: UKU Ext Box
  • Voltage: 240
  • Circuit Breaker Amperage: 2 x 63
  • Weight: 3.25 lbs
  • Width: 7″ (178mm)
  • Depth: 4″ (101mm)
  • Height: 10″ (254mm)

HUUM UKU Extension Box

by HUUM
SKU: HUU-H2003012
Regular price $625.00
Unit price
per
Availability
 
(0 in cart)
Fast Shipping
Secure payment
Financing available via Bread Pay and Shop Pay

You may also like

The HUUM UKU Extension Box is designed to expand the functionality of the UKU sauna control system, allowing for seamless integration with additional sauna components. This durable and reliable extension box ensures safe and efficient operation, making it an essential accessory for customized sauna setups.

  • Compatibility: The UKU Extension Box is designed for seamless integration with UKU Controls, serving as a necessary component for HUUM sauna heaters exceeding 12kW in power output.
  • Required for High-Powered Heaters: This extension box is specifically required for all HUUM sauna heaters with a power output exceeding 12kW, ensuring compliance with safety standards and regulatory requirements.
  • Light Grey Design: Featuring a light grey exterior, the extension box offers a sleek and modern appearance that complements various sauna environments and decor styles.
  • Wall-Mounted Design: The extension box is designed for wall-mounted installation, providing a secure and convenient mounting solution that helps conserve space within the sauna area.
  • High-Quality Construction: Crafted with precision engineering and quality materials, the extension box is designed, engineered, and made in Estonia to meet stringent performance and durability standards.
  • SGS Listed: The extension box is SGS listed, indicating compliance with international safety and quality standards, ensuring peace of mind for users.
  • Dimensions: With dimensions measuring 7″ in width, 4″ in depth, and 10″ in height, the extension box offers a compact yet functional design suitable for various sauna installations.
  • 5-Year Limited Warranty: Backed by a 5-year limited warranty for quality assurance and peace of mind.
  • Model: UKU Ext Box
  • Voltage: 240
  • Circuit Breaker Amperage: 2 x 63
  • Weight: 3.25 lbs
  • Width: 7″ (178mm)
  • Depth: 4″ (101mm)
  • Height: 10″ (254mm)
Thumbnail
The Sauna Place
User Image
Netanya Mintz
April 7, 2025
I own Sharp Edge CrossFit in Evanston, IL., and we have a Sisu sauna for our members to enjoy. One of the coils in our sauna's heater broke. After a quick Internet search I found that the Sauna Place had the replacement parts I needed. I called them and spoke to the NICEST person on the phone. He assured me not only are the parts readily available and able to be shipped quickly, but that replacing the parts in the heater is not a difficult task. My stress pertaining to my gym members not being able to use the sauna they pay for was pretty quickly alleviated after talking to whomever I spoke with on the phone this morning. For that, I am so appreciative! Excellent customer service! And I highly recommend!
User Image
Ben Pasternack
March 25, 2025
fantatsic person
User Image
Joe Wynne
March 24, 2025
The Sauna oil Sold here is 97% paraffin which is not approved for inhalation and is a petroleum distillate. It begins breaking down at 200f and creating harmful gasses. Do not put petroleum products in you wellness sauna. This product is listed at 100% natural (bout as natural as gasoline) and its ingredients are not listed on the website. I had to call and request at MSDS sheet and then lookup the CAS codes to discover if this was harmful to my family. This is the cheap option not the good one
User Image
Alex Davis
March 19, 2025
We have been working with sauna place for years and definitely recommend!
User Image
Samuel McCandless
March 17, 2025
Update: after several more weeks of bad shipping and not being notified that the shipper could not get ahold of me I finally picked up my heater. They sent the wrong one. To their credit they made it right as fast as they could despite my rather irate disposition at this point. Credit where credit is due, they always tried to fix their mistakes, I just wish there had been less. I want so badly to increase this rating. I get it shipping is crazy and industries have busy seasons where they’re running behind, I also get switching to a new inventory/shipping system and it can be hard (though judging from reviews they’ve been updating the shipping system for four months now). Everytime I do get ahold of someone they seem sincere. What I don’t think is great is not listing on your website if you’re out of stock of something. This happened with the heater I ordered, I called about a week after the order was complete (charged to my card) but not shipped. They told me they didn’t have any so they ordered one from somewhere else and that would ship to me ~ two week lead time (far cry from their website saying they’ll ship within two days). Their website should reflect their stock. They were apologetic and said they’d actually get one the next day in a shipment and they’d just send me that one - great! It’s been over a week since they said that and it still hasn’t shipped. I called and asked if they could just ship my vapor barrier and tape so I can continue my build and they agreed - great again! I just got the box and they shipped me qty 1 of each when I ordered qty 2 and the receipt shows it should be two as well. They seem well intentioned however they’re just unorganized at this point. I’m sure they’ll fix my order but at this point I can’t recommend them - at least call ahead and make sure your item is in stock before buying and follow up on shipping. (My shipment receipt shows the heater shipped, it did not, that was expected. Apparently shipping a partial order sends a receipt that everything shipped.)
User Image
Josh Zlatkus
March 3, 2025
Fairly good product and friendly people, but they got a few things wrong on our order, and every time I reached out about it - or just had a general question - it was 50/50 whether I'd get a response. That's just not good enough in this day and age.
User Image
LeAlan Miller
February 25, 2025
Brian was excellent on calculating my heater size and the whole sales process. Tony and Mike were also very helpful after the sale. Highly recommend!
User Image
Steve Kovac
January 25, 2025
Recently ordered some accessories. They shipped SAME DAY and they arrived in perfect order in 3 days. Everything was as expected. Thank you !!
User Image
Timothy Keutzer
January 16, 2025
After over twenty years, my previous sauna heater gave up the ghost. I called Sauna Place and explained what I had. Tony very helpfully walked me through my options and recommended the right heater for my needs. When I received the unit, we had to resolve a minor issue with the shipping, and again, most helpful in resolving. Now the Harvia Kip 60 is up and operational in my small sauna, and I couldn’t be happier. Great help, great service, great product.
User Image
cliff venters
January 15, 2025
Very nice people. Service is great!