30-Day Easy Returns + Free Shipping Over $100

Skip to content
HUUM HIVE 18 Series 18kW Electric Sauna Heater
SKU: 31299320773

HUUM HIVE 18 Series 18kW Electric Sauna Heater

Sale price$1510.20 Regular price$1678.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

HUUM HIVE 18 Series 18kW Electric Sauna HeaterHUUM HIVE Series Electric Sauna Heater The HIVE electric sauna heater from HUUM is an elegant solution for large saunas in health clubs, spas, hotels, and gyms from 424 to 1,236 cubic feet. This floor mounted heater holds a massive 529 pounds of stones for maximum thermal efficiency and incredible performance. The greater stone capacity ensures a more consistent, soft heat and a long lasting hot steam even for larger groups. HIVE 18 KW sauna heater is

HUUM HIVE Series Electric Sauna Heater

The HIVE electric sauna heater from HUUM is an elegant solution for large saunas in health clubs, spas, hotels, and gyms from 424 to 1,236 cubic feet. This floor-mounted heater holds a massive 529 pounds of stones for maximum thermal efficiency and incredible performance. The greater stone capacity ensures a more consistent, soft heat and a long-lasting hot steam even for larger groups.

  • HIVE 18 KW sauna heater is designed for sauna rooms from 636 to 1236 cu. ft.

  • Internal air tunnel for HIVE sauna heaters speeds up sauna heating by 25% and extends the life span of heating elements. It is made of stainless steel and installed in the middle of the heater.

Includes

  • 18kW Sauna heater
  • Adjustable legs
  • Installation and operation manual
  • Pre-Installed HIVE Air Tunnel
  • Limited 3-year warranty (excluding elements)


Required for Operation:

  • UKU Control
  • UKU Extension Box
  • 16 boxes 5-10 cm rounded olivine sauna stones

 

Features

  • Modern-Elegant design
  • Suitable for commercial use
  • 240V/1PH operation
  • Works with UKU controls (sold separately)
  • Works with UKU extension box (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
  • Floor model with adjustable legs
  • Designed, engineered, and crafted in Estonia
  • Dimensions: 22" Diameter (560mm) x 29.5" H (750mm) SGS listed
  • Limited 3-year warranty (excludes heating elements)

Specifications

Model HIVE 12 / 15 / 18
Kilowatt Rating 12  / 15 / 18 KW
Minimum Cubic Feet 424 / 530 / 636 CF
Maximum Cubic Feet 883 / 1060 / 1236 CF
Heater Weight 44.1 / 46.3 / 48.5 lbs
Shipping Weight with Sauna Stones 639.1 / 641.3 / 643.5 lbs
240V, Single Phase Amperage 50 / 62.5 / 75 Amps
Circuit Breaker 50 + 50
Wire Size AWG 10 + 10 / 8 + 8 / 8 + 8
Diameter 22" (560mm)
Height 29.5" (750mm)

 

Technical

For HUUM Sauna Heater or accessories damaged in shipping, please contact our customer service team with photos and information at [email protected]. A team member will review and offer a credit or replacement based on the extent of the damage.

 

Shipping & Returns

Cancellations & Refunds

SaunaKits.com 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 1-877-587-5387 or email [email protected]

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.

When will my order ship?

If your order is in stock and we process the charges to your credit card, it will ship within five 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 [email protected].  

No shipping outside the lower 48 States in the USA.

What if my shipment is damaged?

Please inspect the packaging of your item(s) when they arrive. If you notice any damage, you should make note of it when signing for delivery.  If your item(s) do arrive damaged please send photos to [email protected] and we will process an insurance claim on your behalf.

Cancellations (Before order ships)

SaunaKits.com 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). Reach agents during business hours at 1-877-587-5387, the chat on our website, or email [email protected]

Cancellations of customer 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 & 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 or exchange processes. 

Not all orders are available for return once they have shipped.  We order 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 a 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.

Seller reserves the right to refuse to refund any deposit or payment, or cancel any payment due, and any owing until such time as Seller a) is in receipt of the goods b) has inspected the goods and c) in the Sellers discretion, has found the goods to be free of damage. All refunds will be provided within 5 business days once the product has been returned to the warehouse and inspected for damage.

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 overwhelming demand on shipping, factory/warehouse and dock workers and so on). 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 31299320773

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 908 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Susanna J
Natrona Heights, US
★★★★★ 4
Nice, but not great fabric quality
Color: Floral Black, Size: Large
The fit was great. Colors were as shown. The fabric shows signs of wear pretty much on the second wear so durability isn’t great. The fabric is soft and light weight so perfect for spring and fall. Not sure I’d buy again as I think it will look worn out quickly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
J
Verified Purchase
Jason K.
Houston, US
★★★★★ 5
Very Straightforward and Easy to Use
Reload type: One Time Reload
I have used this several times, and it has always been a smooth and convenient experience. The biggest advantage is how intuitive the process is. Reloading the balance is simple, quick, and easy to understand without unnecessary steps or confusion. It is especially useful for managing spending, setting a shopping budget, or keeping funds ready for future purchases. Instead of entering payment details every time, having balance available makes checkout faster and more convenient. I also appreciate how quickly the funds are applied, allowing immediate use once the reload is completed. This is one of those simple Amazon features that works exactly the way it should. Overall, easy, efficient, and user-friendly. I have been very satisfied with it. Five stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
M
Verified Purchase
Mom2
Lowell, US
★★★★★ 5
“ incredibly convenient”
Reload type: One Time Reload
I recently used the Amazon.com Gift Card Balance Reload option, and I’m thoroughly satisfied with the process and the overall experience. Here’s my detailed review: Convenience The Gift Card Balance Reload feature is incredibly convenient for anyone who shops frequently on Amazon. It allows me to add funds directly to my Amazon account without having to go through the process of entering credit card information every time I make a purchase. This is perfect for those who prefer to manage their shopping budget by preloading funds to their account. It saves me time and makes the checkout process smoother. Ease of Use Reloading my gift card balance was quick and easy. All I had to do was go to my Amazon account, select the “Reload Your Balance” option, and choose the amount I wanted to add. The process is simple and user-friendly, with clear instructions. You can choose to set it as a one-time reload or opt for an automatic reload at regular intervals, which is an excellent feature for those who want to stay on top of their shopping without worrying about running out of funds. Reloading Options One of the best aspects of this feature is the flexibility in reloading amounts. I can reload any amount I choose, whether it’s a small amount to cover a single purchase or a larger amount for future shopping. There’s also the option to set up an auto-reload, so my balance is automatically replenished when it drops below a certain threshold. This is particularly helpful for frequent Amazon shoppers, as it ensures there’s always enough funds available without having to manually reload every time. Processing Time Reloading my balance was instantaneous, and I was able to make purchases immediately after adding funds. The money is applied to my Amazon account almost immediately, so there’s no waiting around for it to process. This makes it ideal for urgent purchases or spontaneous shopping. Security The Gift Card Balance Reload option is secure, and I have peace of mind knowing that my payment information is kept safe through Amazon’s encrypted systems. I don’t have to worry about storing credit card information for each transaction, and the reload process is secure and straightforward. I also appreciate that I get an email confirmation every time my balance is reloaded, providing an extra layer of security and transparency. Value for Money The Gift Card Balance Reload is a great option for managing your Amazon shopping budget. It doesn’t come with any additional fees or hidden costs, and I get exactly what I pay for. Plus, I can take advantage of any promotions or bonuses Amazon may offer for gift card reloads (e.g., occasional bonus offers or discounts). The ability to add funds as needed without being locked into a set amount of money is very useful and cost-effective. Overall Impression I’m highly satisfied with the Amazon.com Gift Card Balance Reload service. It’s a fast, easy, and secure way to manage your shopping budget and ensure that you never run out of funds on Amazon. The process is simple, and I love the flexibility in choosing how much to reload, as well as the option for automatic reloading. For anyone who frequently shops on Amazon or wants to manage their spending more effectively, this is a great tool to have. I will definitely continue using this feature to make my Amazon purchases even more efficient and hassle-free.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 23, 2024
M
Verified Purchase
Martini81
Natrona Heights, US
★★★★★ 5
Easy and simple: Exact Step-by-Step Guide to Reloading Your Balance
Reload type: One Time Reload
I found reloading my Amazon gift card balance much easier than expected. The process was simple and took about 5 minutes at most. Here are the exact steps to do it: ​Login: In the Amazon app or on Amazon.com, log in to your account. ​ Menu: Tap the 3 lines on the bottom right corner of your screen (next to Rufus, Amazon's AI). ​ Find Category: In the section highlighted "Shop by category," tap on Gifting & Registry (3rd option down in that section) and a drop-down menu will appear. ​ Select Gift Cards: On the drop-down menu, tap Gift Cards (first option). ​ Choose Your Action: "The Gift Card Shop" will appear. There you will have three options: "Redeem a gift card," "View your balance," and "Reload." ​ Start Reload: To add funds, tap Reload. ​ Select Type: Scroll down to "Add funds directly to your Amazon Gift Card balance" and tap which reload type you want (one-time, low balance auto-reload, or scheduled auto-reload). ​ Enter Amount: Choose your reload amount. The default is $25, but you can type in your own amount as well (the minimum amount is $5.00). ​ Finish: Tap the orange "Buy Now" tab. ***I used the Amazon app using the u i OneUI version 8.0 these Amazon app on Android version 16 (Baklava) on a Samsung Galaxy S25 Ultra. Others may have a slight variation of the menu setup on the Amazon app.***
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
K
Verified Purchase
Kenneth Lucas
Draper, US
★★★★★ 5
Easy way to add balance
Reload type: One Time Reload
Reloading my Amazon gift card balance has been easy and convenient. I like using it when I want to keep a little money set aside for Amazon orders or make checkout quicker without thinking about which card I want to use. The process is straightforward, the balance shows up fast, and it has been reliable every time I have used it. It is also helpful for budgeting because I can add a set amount and then use that balance for regular purchases. Nothing complicated about it, which is exactly why I like it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026

recommand products