Top Authorized Dealer 3 Year Warranty Included

HUUM STEEL Mini 3.5kW Electric Heater Package

by HUUM Sauna Heaters

SKU STEEL Mini 3.5STU Pkg - UKU Local Black

Top Authorized Dealer 3 Year Warranty Included

HUUM STEEL Mini 3.5kW Electric Heater Package

by HUUM Sauna Heaters

SKU STEEL Mini 3.5STU Pkg - UKU Local Black

Free Sauna Mastery Toolkit + 24-Hour Advocate Guarantee.

Save $1,041.00

$4,599.00

$4,599.00 - $5,999.00

$4,599.00

$3,773.00

$3,773.00 - $4,958.00

$3,773.00

Availability:

in stock, ready to be shipped

Availability:

in stock, ready to be shipped

Availability:

in stock, ready to be shipped

Availability:

in stock, ready to be shipped

Quantity

Excellent

448+ 5-Star
Reviews
Full Manufacturer's Warranty
Fastest Delivery Guaranteed
Top Authorized Retailer

This Item is Currently on Backorder

Units are allocated on a first-come, first-served basis. Reserve the next available one for you with a pre-order. No ETA yet

448+ 5-Star Reviews

Join 448+ happy customers who rated us 5 stars.

Full Manufacturer's Warranty

Enjoy peace of mind with our comprehensive warranty!

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Learn more about the

HUUM STEEL Mini 3.5kW Electric Heater Package

Description

Complete HUUM Steel Mini 3.5kW 240V/1PH Electric Sauna Heater Package

This HUUM Steel Mini sauna heater package comes complete with the traditionally designed STEEL Mini 3.5kW sauna heater, UKU control (WiFi optional), and sauna stones - everything you need to build your dream sauna experience. The package has been combined for use in sauna rooms up to 212 cubic feet (CF).

Features

STEEL Mini 3.5kW Sauna Heater

Slender design
Suitable for use in small saunas with limited space
Small safety distances
Heats up to 25% faster due to internal air duct
For sauna rooms from 123 to 212 cu. ft.
Works with UKU controls
133 pound stone capacity
Direct contact between stones and heating elements
More exposed stones creates a longer and milder heat
Stainless steel construction
Stainless steel, industrial quality heating elements
Wall-mount model
Designed, engineered, and made in Estonia
Dimensions: 12.6" W (320mm) x 6" D (150mm) x 38.4" H (975mm)
Limited 3-year warranty (excluding elements)

UKU

Control display panel (appearance depends on variant you select)
Multiple Color Options available
Settable on/off, time, temperature, and delay
Settable temperature range of 104-230F
Delayed start up to 48hrs in advance
Optional Built-in Wi-Fi interface for HUUM mobile app (additional charges apply)
8 Language options: English, German, Russian, Italian, Finnish, Estonian, Polish and French
Inside/outside sauna room installation
Optional smart heating setting
Available decorative control display panels
Displays set temperature and room temperature
Temperature sensor
Door sensor to keep the heat inside the room
Remotely located main control module
Connects to lights and ventilation
Overheat protection
Child safety lock
Control Console Dimensions: 2.2"W (55mm) x 0.9"D (22mm) x 4.1"H (105mm)
Main Control Module Dimensions: 3.5"W (90mm) x 2.3"D (58mm) x 5.6"H (142mm)

Stones 24

HUUM 1-2" rounded olivine sauna stones
Rounded shape to complement heater design
Durable with high-heat capacity
Stones range from 1" to 2" (3-5 cm)

Package Includes

STEEL Mini 3.5kW Sauna Heater

3.5kW sauna heater
Wall fastening bracket
Installation and operation manual
3-Year Limited Warranty (excluding elements)

UKU

Control console
Main control module
Temperature sensor
Door sensor
Control display panel cable
Temperature sensor cable
Door sensor cable
Installation and operation manual
3-Year Limited Warranty

Stones 12

132 lbs of 1" to 2" (3-5 cm) round Olivine sauna stones

Specifications

Heater Size	3.5 kW
Sauna Room	123 - 212 CU. FT.
Stone Capacity	133 lbs
Height	38.4" (975mm)
Width	12.6" (320mm)
Depth	6" (150mm)
Weight	32 lbs

Safety Distance

Heater Size	3.5 kW
A	1.97 in (50 mm)
B	16.54" (420 mm)

UKU Control

UKU
Minimum Temperature Setting	104 F
Maximum Temperature Setting	230 F
Shipping Weight	20 lbs
Console Dimensions
Width	2.2" (55mm)
Depth	0.9" (22mm)
Height	4.1" (105mm)
Main Module Dimensions
Width	3.5" (90mm)
Depth	2.3" (58mm)
Height	5.6" (142mm)
Display Panel Cable
Length	9.8 ft
AWG	22
Temp Sensor Cable
Length	16.4 ft
AWG	24
Door Sensor Cable
Length	16.4 ft
AWG	24

Documents

HUUM Steel Mini 3.5kW User Manual

HUUM Remote Control User Manual

HUUM Stone Requirements

Warranty

Certificate of Compliance

Warranty

Products and Warranty Period

Huum Product Warranty Period

Read the full LIMITED WARRANTY TERMS AND CONDITIONS

Why Buy from Us?

Why Smart Shoppers Trust Topture

You want to create a wellness space that elevates your life—not spend hours navigating confusing options, surprise fees, or subpar service. At Topture, we’re here to simplify your journey and help you confidently choose products that deliver lasting value and satisfaction.

Here’s how we help you win:

Your Wellness, Simplified

1. Fast, Free Shipping
No delays, no guesswork. We ship 98% of orders free within 2 business days from one of our strategically located U.S. warehouses. Your order arrives quickly, safely, and fully insured—ready to go when you are.

2. Transparent Pricing—No Sales Tax, No Surprises
Forget the math. The price you see is the price you pay—no sales tax and no hidden checkout fees. We believe your trust shouldn’t come with fine print.

3. Top-Tier Customer Support
Real experts. Real answers. Reach us by phone, email, or live chat. Our team is with you before, during, and after your purchase.

4. Only Premium, Authorized Brands
As an authorized dealer for every brand we carry, your purchase is always backed by the full manufacturer’s warranty. No grey-market risks. Just full coverage and peace of mind—because we only work with brands we trust.

5. Product Expertise You Can Rely On
Need more than a product—you need the right one. Our team includes a mechanical engineer with 20 years of experience and access to technicians with over 55 years of field expertise to help you find and install the best-fit solution.

6. We Work With You to Make Everything Right
Your satisfaction is our top priority. If something isn’t quite right—whether it’s a damaged item, a shipping hiccup, or a product that didn’t meet your expectations—we’ll work with you directly to resolve it quickly and fairly. Every shipment is fully insured, and we’re here to make sure your experience ends on a high note.

7. Secure, Flexible Payment Options
We safeguard your payment with SSL encryption and offer a wide array of payment methods—credit cards, Apple Pay or PayPal. Prefer financing? We’ve got that too.

Help Beyond the Sale

8. Education That Empowers
Explore our Learning Center, where we break down complex topics into real-world insights—from how cold plunges impact health, to building custom wellness spaces. Learn what works, what doesn’t, and why—based on years of firsthand experience.

9. Nationwide Installation & Repair Network
Need setup or service? We’ve partnered with top-rated professionals across the country to support you wherever you are.

10. Bulk Discounts & Custom Quotes
Ordering for a business or buying in volume? We’ll build a custom quote just for you.

Don’t Just Shop—Thrive

Join thousands who’ve turned their homes into wellness retreats with Topture’s help. With an average customer rating of 4.9/5, and hundreds of success stories, you’re in good hands.

Questions? Call us at (833) 419-1774 or chat with a product expert today.

Your Purchase Includes Our Full Home Spa Success Package

HUUM STEEL Mini 3.5kW Electric Heater Package

$4,599.00

BONUS 1

24-Hour Advocate Guarantee

Never worry about being left in the dark. If any issue arises, we become your personal advocate. We guarantee a response and action on your behalf within 24 business hours. We handle the hassle so you don't have to. If we fail, you get a $100 store credit.

$499

FREE

BONUS 2

The Sauna Mastery Protocol

Enhance your sauna experience with this exclusive bonus, designed to support your health goals and maximize the value of your sauna.

$199

FREE

Total Value: $5,297.00

Your price today: $3,773.00

You Save: $1,524.00

Bonuses will be unlocked at checkout

THEM


Pre & Post Purchase Support	We're here for you every step of the way	Unreliable support
The Price You See Is The Price You Pay	Transparent, all-inclusive pricing with free tracked freight	Low sticker prices with high shipping fees added at checkout
Priority Product Availability	Get it faster—priority fulfillment	Non-priority lead times
Product Selection	Wide range of top brands to fit every budget	Limited selection, lower-quality
Instalment Payments	Flexible payment plans available	No payment plans offered

Let customers speak for us

from 448 reviews

We should have bought it years ago

We thought about buying a sauna for years and finally did. We absolutely love it, especially in the winter. It’s incredibly easy to assemble with two people the whole family uses it.

J.

Finnmark FD-1 Full-Spectrum Infrared Sauna | 1-Person Infrared Sauna

09/27/2025

Packaged well. Product as advertised. Serious customer service.. Order with confidence.

Robert B.

Mesa WS-301/WS-301A- Blue Glass Steam Shower

12/21/2024

True North 5 Person Sauna

I purchased this Sauna in White Cedar with 2 Windows and the Harvia Electric Heater and absolutely love it! It was easy to assemble in a few hours and is very high quality. I got the manual dial and it heats up quickly and provides up to 80% humidity when putting water on the rocks. The instructions were excellent and no extra help was required. It was shipped to me in the US and although it took awhile to receive because of a manufacturing issue, Topture kept on top of the situation and kept me in the loop from start to finish. They are an xlnt company to purchase from. Sandy Potter

Sany P.

True North Sauna 5 Person Outdoor Traditional Cabin Sauna

09/25/2024

Handles snow and cold like a champ

I initially had concerns about the snow load with the True North 5 Person Outdoor Cabin Sauna, but it’s handled heavy snow with no problem at all. Paired with the HUUM Drop 7.5kW heater, it delivers an amazing, steamy sauna experience that I highly recommend. Big thanks to Topture for all the support, answering my questions, and just always being there throughout the whole process!

Robert H.

True North Sauna 5 Person Outdoor Traditional Cabin Sauna

09/21/2024

Ultimate Wellness Experience

As someone who has tried multiple saunas over the years, the Finnmark FD-4 Trinity Infrared & Steam Sauna Combo is by far the best I’ve encountered. It heats up quickly, and the infrared heat feels soothing, while the steam option delivers that classic, deeply relaxing sweat.
Installation was straightforward, and it fits perfectly in my home. My partner and I use it several times a week, and it has truly elevated our wellness routine. Whether you’re looking for relaxation, detoxification, or just a moment of calm in your day, this sauna offers it all. Highly recommend it!

AmandaC.

Finnmark FD-4 Trinity 2-Person Hybrid Infrared & Steam Sauna & Red Light

09/07/2024

An Investment in Wellness, Exceptional Quality and Craftsmanship

I was initially hesitant about the Dundalk Leisurecraft Georgian Cabin Sauna Canadian Timber 6 Person (CTC88W) because of the size and the price point. However, after using it for a while, I can confidently say it's worth every penny. The quality of the Canadian timber is top-notch, and the craftsmanship is evident in every detail. The space easily accommodates six people, making it perfect for family gatherings or a relaxing session with friends. The heat distribution is excellent, and the cabin design gives it a rustic, cozy feel. I also appreciate the durability of the materials, which seem built to last through years of enjoyment. If you're serious about wellness and long-term value, this sauna is an excellent investment.

Michael C.

Dundalk Leisurecraft Georgian Cabin Sauna 6 Person | CTC88W

05/01/2024

Fast and reliable

Ordered Huum Wifi Controler. Shipped within a few days from Chicago to California. Great price and reliable. Benny was helpful. Will buy from them again.

christopher b.

HUUM UKU Wi-Fi Sauna Controller

12/19/2023

What customers think about the store

This store excels in customer service with knowledgeable staff, fast shipping, and quality products. Customers praise the excellent communication, professional handling of issues, competitive pricing, and reliable delivery. Products arrive well-packaged and as...

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Delivery Quality Service Shipping

Frequently Asked Questions

Where are you located, and where do you ship from?

We are a U.S.-operated company with our main headquarters in Sheridan, Wyoming.

Orders are shipped across the continental U.S. from our network of warehouses, managed by our logistics partners in California, Illinois, Texas, New York, Florida, and Toronto.

How much is shipping?

We’re proud to offer FREE SHIPPING on all orders over $200 within the Continental United States.

The only exception is sauna stones—due to their weight and high shipping costs, we apply a shipping charge when they are purchased without a heater.

Do you provide financing?

Absolutely! To view your financing offer, simply select Shop Pay Installments as your payment method at Step 3 of checkout.

You'll need to enter a debit card to receive your offer, but don’t worry—you can still back out before completing the purchase.

How long will it take for my items to arrive?

If you order today, you can expect delivery within 5-13 business days. In-stock products typically ship within 2-6 business days, and once they leave the warehouse, transit time is usually 3-7 business days, depending on your location. Let us know if you need more details!

For pre-order or made-to-order items, the estimated delivery time frame is listed on the product page.

What happens after I place my order?

As soon as you place your order, you'll receive a confirmation email with your order details—be sure to keep it for your records. Once we process your order, we'll begin preparing it for shipment. As soon as it ships, you'll receive another email with tracking information.

1-2 days before delivery, the delivery team will call you to schedule an appointment. You’ll need to be home to accept and sign for the delivery at the scheduled time.

Is there a warranty?

Yes, all products come with a manufacturer warranty. You can find the specific warranty details for each product under the "Warranty" tab on its product page.

Do you have a showroom?

We don’t have a showroom, which means we can bring you the lowest prices as we don’t need to worry about any extra costs!

Where do you deliver to?

We offer free Curbside Delivery to all 48 lower states and for some products even Canada.

Do you ship internationally?

International Shipping

Yes, we offer international shipping for many of our products. Customers outside the US can request a personalized shipping quote by contacting us. Please be aware that any applicable taxes or customs fees will be the responsibility of the customer. Note that some items may be subject to shipping restrictions.

Shipping to Hawaii, Alaska, and Puerto Rico

We ship to Hawaii, Alaska, and Puerto Rico, although most items are subject to additional shipping fees. To obtain specific rates and prevent any restocking fees, please email us at contact@topture.com.

Need help picking the right sauna heater size? Calculate Perfect Heater Size

HUUM STEEL Mini 3.5kW Electric Heater Package

HUUM STEEL Mini 3.5kW Electric Heater Package