Rated 5.0/5 based on 8 reviews

HUUM HIVE 18kW Electric Sauna Heater Package

An 18kW HUUM Hive electric heater package — 528 lb stone capacity for the strongest löyly HUUM makes, with UKU control.

$6,551

$7,899

Save $1,348

528 lb stone capacity for the strongest löyly HUUM makes.
Air Tunnel cuts heat-up time 25% and extends element life.
UKU controller handles scheduling and 8 languages; Wi-Fi optional upgrade.

The Sauna Mastery Protocol Digital Guide

$49 FREE

Full-Value Freight Protection

$299 FREE

Perfect for sauna rooms from 636 - 989 ft³

Select Add-Ons

Safety Rail | Rail H
$396
Embedding Flange | Flange H
$397
Reflector Panel, Large | Reflect H
$328

Quantity

Secure checkout
30-day guarantee
3 Year warranty

In stock — estimated delivery in 7–12 days

Description

Complete HUUM HIVE 18kW 240V/1PH Electric Sauna Heater Package

The HUUM HIVE 18.0kW sauna heater package combines modern elegance with high-capacity performance, providing everything you need for a luxurious sauna experience. Precision-engineered and crafted in Estonia, this all-inclusive package is designed for sauna rooms up to 989 cubic feet (CF) and includes the free-standing HIVE 18kW sauna heater, UKU control system (with optional Wi-Fi), UKU extension box, and 528 pounds of sauna stones.

With its large stone capacity, the HIVE series delivers maximum thermal efficiency, consistent soft heat, and long-lasting hot steam, making it ideal even for larger saunas. The HIVE lineup is a testament to pure performance, offering a true European sauna experience for your home.

HUUM has updated its HIVE and HIVE MINI sauna heaters to include a HUUM Air Tunnel. This stainless-steel housing, positioned at the center of the heater will speed up heating by 25%, enhance air circulation, and increase the lifespan of the heating elements.

Features

HIVE 18kW Sauna Heater

Elegant design
Suitable for commercial use
240V/1PH operation
For sauna rooms from 636 to 1236 cu. ft.
Works with UKU controls
Works with UKU extension box
Large 528 pound stone capacity
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
Air tunnel shortens heat-up time and increases life of heating elements
Designed, engineered, and made in Estonia
Dimensions: 22"Diameter (560mm) x 29.5"H (750mm)
SGS listed
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)

UKU Extension Box

For use with UKU controls
For heaters over 12kW
Dimensions: 7"W (178mm) x 4"D (101mm) x 10"H (254mm)
Limited 3-year warranty

Stones 24

HUUM 2-4" rounded olivine sauna stones
Rounded shape to complement heater design
Durable with high-heat capacity
Stones range from 2" to 4" (5-10 cm)

HUUM Air Tunnel

Compatible with all HIVE heaters
Shortens heat-up time
Increases life of heating elements
Full stone load still required — the air tunnel does not reduce the quantity of stones
Constructed of stainless steel

Package Includes

HIVE Series 18.0kW Sauna Heater

18.0kW Sauna Heater
Adjustable Legs
Pre-Installed HIVE Air Tunnel
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

Extension Box

For use with UKU controls
For heaters over 9kW
Dimensions: 7"W (178mm) x 6"D (152mm)7"H (178mm)

Stones 24

528 lbs of 2" - 4" (5-10 cm) Round Olivine Sauna Stones

HUUM Air Tunnel

Compatible with all HIVE heaters
Shortens heat-up time
Increases life of heating elements
Full stone load still required — the air tunnel does not reduce the quantity of stones
Constructed of stainless steel

Specifications

Heater Size	12 kW	15 kW	18 kW
Sauna Room	424-636 cu. ft. (12-18 m³)	530-813 cu. ft. (15-23 m³)	636-989 cu. ft. (18-28 m³)
Stone Capacity	528 lb (239 kg)	528 lb (239 kg)	528 lb (239 kg)
Height	29.53 in (750 mm)	29.53 in (750 mm)	29.53 in (750 mm)
Diameter	22.05 in (560 mm)	22.05 in (560 mm)	22.05 in (560 mm)
Weight	48.5 lb (22 kg)	50.7 lb (23 kg)	53 lb (24 kg)

Safety Distance

Heater Size	12 kW	15 kW	18 kW
A	4.73 in (120 mm)	5.91 in (150 mm)	7.1 in (180 mm)
B	31.5 in (800 mm)	33.86 in (860 mm)	36.22 in (920 mm)

Power

HIVE 12, 15 and 18 are two-circuit heaters: each needs two dedicated breakers and two supply cables landed on the L1/L1/L2/L2 terminal block. Figures below are taken from the current HUUM installation & operation manual. Installation must be carried out by a licensed electrician, and local code applies wherever it is stricter.

240V Supply	HIVE 12	HIVE 15	HIVE 18
Output	12 kW	15 kW	18 kW
Current Draw	50 A	62.5 A	75 A
Circuit Breaker	30 + 30 A	50 + 50 A	50 + 50 A
Min. Wire Size	10 + 10 AWG	6 + 6 AWG	6 + 6 AWG

The same heaters run on a 208V supply at reduced output, which also reduces the room they can heat:

208V Supply	HIVE 12	HIVE 15	HIVE 18
Output	9 kW	11.25 kW	13.5 kW
Current Draw	43.27 A	54.09 A	64.9 A
Circuit Breaker	30 + 30 A	40 + 40 A	40 + 40 A
Min. Wire Size	10 + 10 AWG	8 + 8 AWG	8 + 8 AWG
Sauna Room	318-495 cu. ft. (9-14 m³)	389-601 cu. ft. (11-17 m³)	477-742 cu. ft. (13.5-21 m³)

UKU Local

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

UKU Ext Box

Voltage	240
Circuit Breaker Amperage	2 x 63
Weight	3.25 lbs
Width	7" (178mm)
Depth	4" (101mm)
Height	10" (254mm)

Documents

Installation and Operation Manual

UKU Control Installation and Operation Manual

HUUM Stone Requirements

Sizing Your HUUM Sauna Heater

HUUM Limited Warranty

HUUM Certificate of Compliance

Warranty

Products and Warranty Period

Huum Product Warranty Period

Read the full LIMITED WARRANTY TERMS AND CONDITIONS

Step 1

Size it right

Every package page lists the exact room size the heater is rated for, so you can match it to your sauna before you order.

Step 2

Components pre-matched

We pair every heater with the controller, sensor, stones, and cable that actually work with it, so you don't have to cross-reference compatibility charts before you check out.

Step 3

Real löyly

When the heater, stones, and room are properly matched, you get the rolling heat and steam crack that make a true Finnish session.

WHAT COMES WITH EVERY TOPTURE ORDER

Free Bonuses Included With Your Topture Order

Claim $348 in Free Bonuses Today

BONUS 1

The Sauna Mastery Protocol

The session times, temperatures, and weekly rhythm that turn a sauna into a habit you keep. Covers heat-up protocols and what to expect across your first 30 sessions. Sent to your inbox after purchase.

$49INCLUDED

BONUS 2

Full-Value Freight Protection

Large orders ship fully insured. If freight arrives damaged, Topture helps coordinate the claim and replacement process with the carrier and manufacturer. Proper inspection and damage documentation at delivery are required. Most in-stock orders ship within 2–7 business days.

$299INCLUDED

Retail Price: $7,899

Today's price: $6,551

Choose your options now

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.

Verified buyer

Ordered this sauna fall 2024 and we love it. No better feeling during a Minnesota winter. Lastly, I have to mention the customer service for this purchase has been like no other. Any questions or requests I had were addressed immediately by Topture. I got more than I expected from them and have already recommended them to several people looking for saunas. SO if you're thinking about it, JUST DO IT already..

Verified buyer

Thanks for the great service - greatly appreciated.

Verified buyer

Choosing the right sauna

Compare models across leading sauna brands based on your space, climate, capacity, preferences, and budget.

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Heater & electrical fit

Get help matching the heater to the sauna volume, glass area, controls, and electrical requirements.Try our heater calculator

Ask who will check that the heater and controls are right for your installation before you order.

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Freight delivery

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Ask how the order ships, how it will be unloaded, and what happens if freight arrives damaged.

Installation information

We help provide the manuals, specifications, clearances, and electrical information your installer may need.

Find out what documentation and project support will be available after checkout.

After the sale

Questions after delivery? We help with troubleshooting, documentation, warranty coordination, and manufacturer support.Read customer reviews

Ask who you will actually contact if something doesn't work after the order arrives.

461 Customer Reviews

Product and store reviews from Topture customers, collected by Judge.me.

Lifetime Expert Support

Same team before and after the sale, from sizing to warranty support.

Authorized HUUM Retailer

Sold by Topture, with the applicable manufacturer warranty.

Full-Value Freight Protection

Freight damage? We help coordinate the claim and replacement process.

Customer reviews

What customers say about the HUUM HIVE 18kW

5 stars: 8 (100%)
4 stars: 0 (0%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

This product has no reviews of its own. The merchant grouped it with related products, so the reviews shown are from across that group.

Absolutely fantastic stove!
Absolutely fantastic stove! Gentle heat and great look. We are thrilled with the HIVE Wood 13. Yes, it takes its time to heat up (approx. 1 - 1.5 hours, depending on the wood), but that's normal with this amount of stones. The wait is worth it! The warmth is incredibly soft and even throughout the whole room. The best part is the large viewing window, the crackling and the view of the fire are pure relaxation. The craftsmanship is very robust and the design is a real eye-catcher. Every infusion is a pleasure. Full 5 stars!

Thank you for the glowing 5-star review! We’re thrilled that the soft, even warmth and that beautiful fire view are giving you the relaxing sauna experience you were after. That's exactly what the HUUM Hive Wood is designed to deliver. Enjoy the cozy glow!

Amazing steam!
A traditional experience with modern style. Amazing steam! This stove is the soul of our sauna. We chose the HIVE Wood 17 because of its massive stone capacity, and we have not regretted it. The stove requires a proper heating-up, but it rewards you with soft and long-lasting steam. The steam is truly moist and oxygen-rich, never sharp. The large glass door creates a wonderful atmosphere as the fire crackles inside. The design is beautiful and the stove is clearly high-quality. If you value an authentic wood sauna atmosphere and excellent steam, this is the perfect choice.

Thanks for the thoughtful review! We are very glad the steam feels soft and long-lasting. Enjoy many cozy sessions with your HUUM Hive Wood!

5-Stars
HUUM HIVE Electric Sauna Heater

Thank you for the 5-star rating! So glad you’re enjoying your HUUM Hive. Here’s to many relaxing sauna sessions ahead.

Great Steam and Clean Loading
Arrived on schedule, well packed. We chose the LS version and love loading from the changing room, keeps the bench area extra tidy. Install was straightforward with the manual; customer support quickly answered a flue-size question. Beautiful build and dependable heat. Highly recommend.

Thrilled to hear the Hive Wood LS setup is keeping your bench area tidy, that’s exactly what it’s meant to do. Thanks for the kind words and the recommendation!

The Best Löyly, Period.
If you prioritize authentic, mild, and humid steam, the HIVE is unmatched. The huge stone volume holds heat beautifully for extended sessions. Its unique, cylindrical design is an aesthetic win. Absolutely recommend for any medium-to-large sauna room.

So glad it’s delivering that soft, humid löyly you were after, the HUUM Hive was made for exactly that. Enjoy those long, relaxing sessions!

A Powerhouse for Large Saunas
We installed the HUUM HIVE 15kW in our new large family sauna, and it is a marvel. The immense stone capacity is the secret to the incredibly soft, consistent, and long-lasting löyly (steam). It doesn't blast you with dry heat; it's a gentle, enveloping warmth reminiscent of a traditional wood stove. The design is beautiful, a true centerpiece. The built-in air tunnel works as advertised, getting the large stone mass hot surprisingly fast. A premium heater that delivers a superior, authentic sauna experience for large groups.

Thank you for the wonderful review, so glad the HUUM Hive is delivering that soft, long-lasting löyly in your spacious sauna. Enjoy many relaxing sessions with the whole crew!

Excellent Steam, Slow Warm-up
The HIVE is stunning, transforming our sauna into a modern spa. The enormous thermal mass provides the best, softest steam imaginable, lasting well into the second and third water throws. My only complaint is the warm-up time; despite the air tunnel, heating 250 kg of stone takes a while. Pairing it with the UKU Wi-Fi controller is essential for pre-heating remotely.

Thanks for sharing! We are glad to hear you’re loving that soft, long-lasting steam. You’re right: the big stone mass that makes it so gentle can mean a slower heat-up, and pairing with the UKU Wi‑Fi is a smart move. Enjoy your HUUM HIVE!

The centerpiece of our sauna. A true showstopper.
We chose the HIVE Wood 17 LS model, which feeds through the wall from our changing room, and it is the best decision we ever made. The mess from the wood stays outside, and inside, we just get the beautiful glow from the huge glass door. The heat is... different. It's not the sharp, quick heat of an electric heater. With 287 lb of stones, it takes a good 90 minutes to get up to temp, but the löyly (steam) is worth the wait. It’s a deep, soft, enveloping warmth that lasts forever. Tossing water on the stones gives a full, gentle steam, not a "shock." It's the authentic experience we were looking for. 100% recommend.

This made our day, what a showstopper! So glad the deep, soft löyly and gentle steam are giving you the authentic sauna feel you were after. Thanks for the glowing recommendation of the HUUM Hive Wood.

STILL UNSURE?

Frequently Asked Questions

General Topture Questions

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

Topture is an online retailer serving customers in the contiguous United States. The company is Topture LLC, a Wyoming limited liability company, and its registered business address is 30 N Gould St, Ste N, Sheridan, WY 82801.

Orders ship from manufacturer and distributor warehouses in the U.S. and Canada, and some products ship directly from the manufacturer in Europe. Each product page shows its estimated delivery time.

How much is shipping?

Orders over $200 ship free within the continental United States. Orders under $200 carry a small shipping fee.

Two exceptions: SaunaLife and ThermaSol products carry a freight charge at any order value, and sauna stones ordered without a heater ship at $60 per box because of their weight.

Every charge is shown at checkout before you pay.

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 your order is in stock, most orders ship within 2–7 business days of purchase. Transit time then depends on the distance from the warehouse and, for freight, on booking a delivery appointment.

For custom, pre-order or made-to-order items, the estimated delivery time frame is listed on the product page. Delivery dates are estimates, so please don't book installation labor until your order has arrived and been inspected.

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 your order ships, you'll receive another email with tracking information.

For freight deliveries, the carrier will call or text you to schedule an appointment once the shipment reaches their local terminal. Someone needs to be there to inspect the shipment and sign for it. Smaller parcels arrive by UPS or FedEx without an appointment.

Is there a warranty?

Yes. Products purchased through Topture include the applicable manufacturer’s warranty, subject to the manufacturer’s terms. You’ll find the warranty details for each product under the "Warranty" tab on its product page, and we help with troubleshooting and warranty coordination if an issue comes up.

Do you have a showroom?

We don’t have a showroom — we sell online. Our team is available by phone, email and chat to help you compare models, sizes and heaters, and we can send dimensions, installation manuals and electrical requirements before you buy.

Where do you deliver to?

We deliver throughout the 48 contiguous states, with curbside freight delivery for large items. Free shipping and standard rates apply there only. Alaska, Hawaii, Puerto Rico, other U.S. islands and Canada are quoted separately, depending on the brand and model. We can't ship freight or oversized items to P.O. boxes.

Do you ship internationally?

International Shipping

For many products, yes, including to Canada, by custom quote. Email contact@topture.com with the product and your address before you order; availability and cost depend on the brand and model. Any duties, taxes and customs fees are your responsibility.

Shipping to Hawaii, Alaska, and Puerto Rico

Free shipping applies to the continental United States only. Shipping to Alaska, Hawaii, Puerto Rico and other U.S. islands is quoted separately and depends on the brand and model. Email contact@topture.com for a quote before you order.

Your sauna heater package, done the right way.

528 lb stone capacity for the strongest löyly HUUM makes.
Air Tunnel cuts heat-up time 25% and extends element life.
UKU controller handles scheduling and 8 languages; Wi-Fi optional upgrade.

The Sauna Mastery Protocol Digital Guide

$49 FREE

Full-Value Freight Protection

$299 FREE

Secure checkout
30-day guarantee
3 Year warranty

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HUUM HIVE 18kW Electric Sauna Heater Package

Safety Rail | Rail H

Package Includes

Embedding Flange | Flange H

Package Includes

Reflector Panel, Large | Reflect H

Package Includes

Safety Distance

Power

UKU Local

UKU Ext Box

Products and Warranty Period

Your Own Sauna Ritual, in 3 Simple Steps

Size it right

Components pre-matched

Real löyly

Free Bonuses Included With Your Topture Order

The Sauna Mastery Protocol

Full-Value Freight Protection

What Topture Customers Say

WHY BUY FROM TOPTURE?

What customers say about the HUUM HIVE 18kW