An Important Note on Pricing and Returns:
We believe in upfront pricing and fair policies—no hidden fees, no surprises, and easy, transparent
returns. If you're comparing options, we encourage you to review competitors’ fine print carefully.
We've helped countless customers who had issues elsewhere, and we’re here to make sure that never
happens to you.
Official Distributor
An Important Note on Pricing and Returns:
We believe in upfront pricing and fair policies—no hidden fees, no surprises, and easy,
transparent returns. If you're comparing options, we encourage you to review
competitors’ fine print carefully.
We've helped countless customers who had issues elsewhere, and we’re here to make sure
that never happens to you.
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Includes $373.99 in bonuses with your order
The Primal Reset Guide
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The HUUM UKU 4.2 Wi-Fi control system lets you operate your sauna from its wall-mounted control panel or the HUUM mobile app. With a Wi-Fi connection, you can start heating remotely, set the target temperature and schedule, and check sauna conditions from your phone.
The system works with heaters up to 11 kW, or up to 18 kW when paired with a UKU Extension Box. Built-in overheating protection, a child lock, and the UKU 4.2 sensor set support safe, controlled operation.
The HUUM app lets you adjust heating time and temperature and sends a notification when the sauna reaches the selected temperature. UKU 4.2 is HUUM’s current control system version.
The HUUM UKU 4.2 Wi-Fi system provides control through the wall panel and HUUM mobile app. It supports heaters up to 11 kW directly and up to 18 kW with a UKU Extension Box, with a temperature range of 104–230°F (40–110°C) and heating-time options of 1, 3, 6, 12, or 18 hours.
Use the app to set heating times and temperature, check sauna temperature, and receive a ready notification. The system includes overheating protection and a child lock, and can connect to sauna lighting, ventilation, and a steamer.
The updated UKU 4.2 set includes safety and bench sensors, sensor housings, and a door sensor kit. Panel designs are available in CLASSIC, GLASS, and WOOD styles.
The HUUM UKU 4.2 Wi-Fi control system lets you manage sauna heating from the wall panel or the HUUM app.
The app can set heating time and temperature, show sauna temperature, and notify you when the sauna is
ready.
UKU 4.2 includes a safety sensor, bench sensor, sensor housings, and a door sensor kit. It also supports
connections for sauna lighting, ventilation, and a steamer.
The HUUM app notifies you when the sauna reaches its selected temperature.
Includes safety and bench sensors with two sensor housings.
Choose a CLASSIC, GLASS, or WOOD control panel style.
Connect compatible sauna lighting, ventilation, and a steamer.
HUUM is an innovative Estonian company creating high-quality sauna heaters that blend exquisite design, smart technology, and traditional craftsmanship.
Founded by Siim Nellis, a third-generation sauna stove producer, HUUM draws on decades of expertise and Nordic sauna traditions.
Their award-winning designs, like the DROP heater, prioritize gentle steam, efficiency, and sustainability. Made in Estonia, HUUM brings the authentic sauna experience to the world.
Choose Peak Primal Wellness for a personalized, community-driven approach to health. We prioritize your well-being with high-quality products, tailored solutions, and 24/7 support.
As a family-owned business, we build lasting relationships, offering authentic, effective solutions to help you achieve your wellness goals.
Join our thriving community and embark on a journey toward optimal health with passionate professionals who genuinely care. At Peak Primal Wellness, you're not just a customer—you're family.
Support
Nearly impossible to reach a real person. Endless chatbot loops, auto-replies, and unreturned emails.
Real humans. We answer quickly. Always here, always helpful
Order Processing
Orders often sit for days before being acknowledged. No clear confirmation, updates, or timelines.
Orders are processed immediately. You'll receive confirmation, tracking, and real-time updates within hours.
Shipping
Slow, vague, and unoptimized. Basic carriers, minimal tracking, and delayed delivery windows.
Fast, insured, and fully trackable shipping — optimized for speed and visibility every step of the way.
Pricing
Hidden fees, bait and switch tactics, post purchase price increases.
Our relationships guarantee the lowest prices. Transparent and fair. No surprises at checkout, and no shady
tactics after the sale.
Returns & Warranty
Policies are confusing and designed to frustrate, delay, and deny returns with zero accountability.
Clear, honest, and fast. Our return policy is built to protect your investment, not dodge responsibility.
Support
Frustrating automated responses
Fast, helpful and always supportive
Order Processing
Delays and lack of communication
Instant processing and updates
Shipping
Slow, unreliable and delayed service
Fast, insured, trackable shipping
Pricing
Deceptive pricing practices
Lowest prices, no surprises
Return & Warranty
Frustrating, misleading return policies
Clear, honest return policy
Read their reviews where they can't curate them, Trustpilot, not their own widget; read the one-star reviews and watch how they respond when freight goes sideways. You can see our Trustpilot reviews here
Ask what happens when a unit arrives damaged, you're listening for a person who owns it, not store-blames-manufacturer ping-pong.
Get the delivered price in writing before payment, "freight quoted after purchase" is the oldest move in the category.
Ask for a name, if nobody owns your order, nobody owns your problem.
What comes with every order
Bonus 1
Stop guessing and start your wellness journey with a plan. The Primal Reset Guide gives you a clear framework for building consistent routines, understanding your sessions, and staying on track as you progress. Instant delivery to your inbox after purchase.
Bonus 2
Your large order ships fully insured, so you're covered from our warehouse to your door. If something goes wrong, you don't have to spend hours on the phone with FedEx or the manufacturer. Our Shipping Concierge Service handles the calls, claims, and coordination for you, using our established relationships to get solutions moving faster. Inspect your delivery before signing off and document any damage right away.
| Brand | HUUM |
| SKU | H2005012 |
| Model | UKU 4.2 Wi-Fi |
| Temperature Range | 104–230°F (40–110°C) |
| Power Supply | 240 V 2~ |
| Heating Time Options | 1, 3, 6, 12, and 18 hours |
| Control Method | Control panel and HUUM mobile app |
| Installation and Operational Manual | HUUM UKU 4.2 Wi-Fi/Local Manual |
HUUM provides a 3-year limited warranty for private use on the UKU
4.2 Wi-Fi control unit. Commercial use is covered for 1 year. The
product must be installed, operated, and maintained according to HUUM’s instructions. Electrical
installation must be completed by a licensed professional electrician.
The warranty excludes controller sensors, accessories, normal wear, cosmetic defects, and damage
caused by improper installation, storage, or use. For an eligible claim, HUUM may repair or replace
the product, issue a refund, or offer a price reduction. Claims must be submitted through an
authorized dealer with proof of purchase within 30 days of discovering the issue.
Bathing Brands accepts returns of new, uninstalled items within 30 days of purchase. Contact us
promptly for a Return Authorization Number. For shipping damage, include photos and note if damage was
recorded upon delivery. Bathing Brands covers return shipping for damages or errors. For
change-of-mind returns, restocking fees are case-by-case, and customers cover shipping both ways. We
recommend insured shipping via the original method (Ground or LTL). Once returned, items are
inspected, and if damaged, you’ll be notified to file a claim with your shipper. Refunds are processed
after inspection. Custom or special-order items are non-returnable.
To request a return or refund, customers can use our contact form, email
(info@peakprimalwellness.com)
, or phone -
(877) 689-4898. Once the product is inspected and confirmed to be in brand new condition, we will initiate the
refund, which typically takes 5-7 business days to post back to the original payment method. Refunds
can be applied via the customer’s preferred method, including card or bank transfer. Shipping
instructions and the return address will be provided upon contacting customer service. Please include
photos if the product arrives damaged.
Click here
to view our complete return policy for more details.
Customers may contact us by phone or email anytime to inquire about the status of their order. While we may not always have a tracking link available before the order ships, we are happy to check its current status for you. If an item is never received, please contact us immediately. We will promptly file a claim on your behalf and ship a replacement to ensure you receive your product as soon as possible. Click here to view our complete Shipping policy for more details.
UKU 4.2 lets you control sauna heating from its wall panel or remotely through the HUUM mobile app over Wi-Fi.
It supports heaters up to 11 kW directly; a UKU Extension Box is required for heaters above 11 kW and up to 18 kW.
You can set the temperature from 104–230°F (40–110°C) and choose a 1, 3, 6, 12, or 18-hour heating period.
Yes. With Wi-Fi coverage and the HUUM app, you can adjust settings and check sauna temperature remotely.
The set includes a CLASSIC control panel, main module, temperature-resistant cable, safety and bench sensors, two sensor housings, and a door sensor kit.
Yes. HUUM says the app can notify you when the sauna reaches the selected temperature.
Yes. The system can connect to compatible sauna lighting, ventilation, and a steamer.
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