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Humm STEEL Mini Series Electric Sauna Heater - 3.5kW/6kW/9kW

SKU H10072001
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Save $1,007.00 Save $370.50
Original price $1,852.50
Original price $1,537.50 - Original price $5,035.00
Original price $1,852.50
Current price $1,482.00
$1,230.00 - $4,028.00
Current price $1,482.00
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Manufacturer Warranty Included
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Need help sizing your sauna heater?

Click here to accurately size your heater! Your sauna will thank you :)

In between sizes? We recommend sizing up - we've never had a customer complain about a heater being too warm!

Want today's prices but not ready for delivery?

No problem! In most cases Sauna Heater Supply can hold items and begin processing at a later date! Please contact us for more details!

Humm STEEL Mini Series Sauna Heater

The compact STEEL Mini sauna heater, with exceptionally short safety distances, is a wall-mounted model that is especially suited for modest sauna rooms. 

  • STEEL 3.5 kW sauna heater is designed for sauna spaces up to 212cubic feet (CF)
  • STEEL 6 kW sauna heater is designed for sauna spaces up to 353 cubic feet (CF)
  • STEEL 9 kW sauna heater is designed for sauna spaces up to 529 cubic feet (CF)

Required Control and sauna stones (4 boxes) sold separately.

Includes

  • 3.5 KW, 6 KW, or 9 KW Sauna Heater
  • Wall fastening bracket
  • Installation and operation manual
  • 5-Year limited warranty (excluding elements)

Features

  • Slender design
  • Suitable for use in small homes with limited space
  • Small safety distances
  • Heats up to 25% faster due to internal air duct
  • Works with UKU controls (sold separately)
  • 133-pound stone capacity (required 4 boxes sold separately)
  • Direct contact between stones and heating elements
  • More exposed stones create 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 5-year warranty (excluding elements)

Specification

Model STEEL Mini 3.5
Kilowatt Rating 3.5 KW
Minimum Cubic Feet 123 CF
Maximum Cubic Feet 212 CF
Heater Weight 32 lbs
Shipping Weight with Sauna Stones 165 lbs
240V, Single Phase Amperage --
Width 12.6" W (320mm)
Depth 6" D (150mm)
Height 38.4" H (975mm)


Required for Operation:

  • UKU Control
  • 133 lbs stones (Qty 4 x 33 lbs of 1" - 2" (3-5 cm) stones boxes)

Technical

Warranty

Buyer is obligated to read user manual and follow instructions and requirements presented. Damage to the product caused by not following instructions and requirements will void warranty.

If any defects are found on the product, where manufacturer can be blamed, then buyer has the right to demand fixing or replacing the product. Demands must be made not later than 5 years after buying the product. Purchase receipt needs to be presented when warranty demands are made.

Warranty Terms:

  • Warranty applies only to electric heaters that have been used according to the manual.
  • NB! Warranty does not cover heating elements. They are considered as consumable parts.
  • Warranty does not cover wear that occurs from natural usage.
  • Warranty does not cover defects or wear caused by planned use.
  • Warranty does not imply when:
    • damage or defects are caused by transportation or other actions not controlled by manufacturer.
    • product has been damaged by carelessness or overload
    • product has not been installed correctly
    • product has been modified in any way
    • warranty period is over
    • product is not complete

All demands shall be presented directly to reseller or using e-mail for Canada: canada.support@huumsauna.com or for USA: usa.support@huumsauna.com

Find the latest updates on our website www.huumsauna.com

Shipping & Returns

Cancellations & Refunds: Sauna Heater Supply prides itself on having one of the best return policies in the industry. Cancel any time before your order has shipped, completely free of charge (exceptions apply, including custom made orders). 

Call 916-333-0240 or email sales@saunaheatersupply.com

Frequently Asked Questions

When will I know my order has shipped?

As soon as you place your order, you will receive an order confirmation e-mail.  This means that we have received your order in our system and pre-authorized your credit card for the purchase.  As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment. If, for some reason, there is a delay in stock, we will contact you before accepting payment.

When will my order ship?

If your order is in stock and we process the charges to your credit card, it will ship within 2-5 business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at sales@saunaheatersupply.com.

No Shipping outside the lower 48 in USA.

If you have questions regarding anything below, please send an email to sales@saunaheatersupply.com or call us at 916-333-0240

Cancellations & Refunds: At Sauna Heater Supply, we pride ourselves on having the best return policies in the industry. Cancel your order any time before it ships completely free of charge (exceptions apply such as custom orders, see below). 

If you have questions, please send an email to sales@saunaheatersupply.com or call us at 916-333-0240

Cancellations (Before Order Ships)

If you need to cancel an order, please contact us as soon as possible so we can refund you in full before your order leaves the warehouse. Reach agents during business hours at 916-333-0240, the chat in the bottom right, or email sales@saunaheatersupply.com any time. 

Cancellations of Custom Orders

Custom or made to order products cannot be canceled or refunded as these products are put into production specifically for your order

These units, are custom made to your specification or created once you order. Once you place your order they start building your unit. Your warranty will guarantee you a fully functional and operational product. If it is not clear whether your order is custom or made to order, please message or call us. 

All sales are final for Custom made and Made-to-order products.

Refunds and Returns

If you need to exchange your product, you may do so. You, as the customer, are responsible for any shipping costs throughout any returns and exchange processes. 

Not all orders are available for return once they have shipped. We order our products directly from the manufacturer. Therefore, if the manufacturer will not permit us to return a product, we cannot offer you a return. This often varies on a case-by-case basis; please reach out to us if you would like specific information on your brand and/or product. 

Due to drastically increasing LTL/freight shipping costs, any outright returns will incur 25% cancellation fee + return shipping costs. If you are replacing the product with something else, we may be able to help you cover some of the costs depending on the product. 

Shipping Times

We promise to do our best to get your order to you as soon as possible.  We provide estimated shipping times on the product pages based upon what our suppliers and freight companies tell us, and those estimated shipping times may change or vary without notice (Due to supply chain issues, the steel mills behind on making metal, the manufacturers delayed because of the mills, the overwhelmingly demand on shipping, factory/warehouse and dock workers and so on). 

Order delays have proven to be unavoidable and outside of Sauna Heater Supply's control. While this might be frustrating, we ask you to please be patient and understanding with us in these tough times. We thank you for your business and appreciate your patience. 

 

Warranty

Warranties vary depending upon the manufacturer - see individual product pages for details. Warranty damages occur over time and from use. If an item was damaged upon arrival, and not reported within 30 days, that is not a warranty claim.

Contact sales@saunaheatersupply.com for any questions.

BY USING THE SITE, YOU AGREE TO THESE TERMS OF USE; IF YOU DO NOT AGREE, DO NOT USE THE SITE.

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Huum Sauna Heaters: Estonian Quality

Why Huum Steel?

Why Huum Steel?

Say goodbye to bulky, outdated stoves. HUUM stoves feature a sleek, minimalist round design that highlights the beauty of the stones, adding a touch of elegance to your sauna.

Experience gentle, lasting steam just like a traditional sauna. With their high stone capacity, HUUM stoves deliver mild, long-lasting steam for a relaxing experience.

Control your sauna remotely with ease. The HUUM app lets you heat your sauna with just a few taps on your phone, so it's ready when you arrive home.

Choose lasting quality. Each HUUM stove is crafted from durable stainless steel, designed to look great and stand the test of time.

View All Huum Heaters
Huum App: Control Your Sauna from Your Phone!

Huum App: Control Your Sauna from Your Phone!

With just a few clicks from your phone, the HUUM mobile app allows you to heat your sauna before you even get home.

UKU Sauna Controllers

  • Remote control via the HUUM mobile app
  • Equipped with overheating protection
  • Includes a timer and child safety lock for added security
Shop UKU Controllers
Sauna the Estonian Way

Sauna the Estonian Way

Sweating and beating yourself with twigs – a perfect way to spend a Saturday night? For ancient Estonians, it certainly was. Long before modern spas introduced sauna culture around the world, saunas were an integral part of daily life for Estonian peasants for centuries.

Every Saturday, the sauna would be heated, and carefully crafted birch twig whisks would be soaked in hot water, readying everyone for an evening of cleansing and healing. This weekly ritual was not just about hygiene but also about rejuvenation and well-being.

Even today, this deep-rooted tradition remains alive in Estonian culture. Sauna nights are still a cherished time for gathering family and friends, sweating away the week’s worries, plunging into cold lakes or rolling in snow, and capping it off with a refreshing drink. For Estonians, both young and old, the sauna continues to be a timeless ritual of connection and relaxation.

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Craftsmanship

Craftsmanship

Made in Estonia with Quality Craftsmanship

HUUM stoves, control units, and other products are proudly manufactured entirely in Estonia, with the help of local partners. While the design of our stoves may seem simple, the production process is anything but. We work closely with Estonia’s top metalwork companies to ensure that every step of the process meets our high-quality standards.

Due to the creative design of HUUM stoves, full automation isn’t possible in their production. Crafting each stove involves meticulous manual work, from cutting and shaping metal rods to ensuring the correct thickness and precise bending. Our stoves are made from high-grade stainless steel and undergo specialized shot blasting and acid treatment to achieve their refined appearance. This hands-on process ensures that each HUUM stove is built with exceptional care and precision, resulting in a product that’s as durable as it is beautiful.

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Speak With An Expert:

Speak With An Expert:

Call, chat, or email now!

Get quick answers and personalized advice and discounts for your project.

📞 916-333-0240

sales@saunaheatersupply.com

Speak With An Expert: 916-333-0240
Need Help Sizing Your Heater?

Need Help Sizing Your Heater?

Not sure what size heater you need?

Click here to accurately size your heater! Your sauna will thank you :)

In between sizes? We recommend sizing up - we've never had a customer complain about a heater being too warm!

Find My Sauna Heater Size
Still Have Questions About HUUM?

Still Have Questions About HUUM?

Our sauna heater experts are here to help.

If you have any questions about HUUM Sauna, call us, or speak to us with the chat found from the bottom right corner.

We are here to help!

📞 916-333-0240

sales@saunaheatersupply.com

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Looking for a quote? Get your personalized discount now!

Looking for a quote? Get your personalized discount now!

Get your personalized discount by using the Sauna Heater Supply quote form.

Here's how:

  1. Locate the Quote Form: You'll find it on every product page by scrolling down.
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  4. We will send a quote for you.

Need a bit more help? Read our Quote Form Tutorial or click the chat icon in the bottom right corner for live assistance.

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