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HUUM CORE Wall Mini Electric Sauna Heater White

HUUM CORE Wall Mini Electric Sauna Heater White

Regular price £ 557.99
Sale price £ 557.99 Regular price £ 0.00

Available to purchase – Special order lead times apply.*

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Free UK Mainland Delivery over £500*
Expert Technical Support
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Full HUUM Manufacturer Warranty
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UK Official HUUM Distributor
Finish: Black

Buy together with:

HUUM CORE Wall Mini Electric Sauna Heater White
+
HUUM Sauna Stones - Rounded Olivine Diabase 15kg (5-10 cm)
+
UKU Wi-Fi Control Unit Glass/Black by HUUM

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HUUM CORE Wall Mini Electric Sauna Heater Black Electric Sauna Heater | Finnmark Sauna

The Science of Sauna. The Art of HUUM®.

The HUUM Core Wall Mini redefines compact sauna heating, delivering authentic Finnish tradition in a space-efficient, wall-mounted form.

Person using a smartphone app to control a device, with a focus on the app interface.

Seamless Control, From Anywhere

Experience the ultimate convenience with the HUUM mobile app. With the optional WiFi-enabled control unit, you can heat your sauna remotely, set a timer, or adjust the temperature, all from your smartphone.

Description

*Stones & Controller to be purchased separately*

(We recommend purchasing 1 x 15kg box of the Rounded Olivine Diabase Sauna Stones with this electric heater. You can find the recommended sauna stones here).

The HUUM Core Wall Mini Combi electric sauna heater delivers versatile performance in a compact form, combining traditional dry heat with enveloping steam in a space-efficient, wall-mounted design.

The HUUM Core Wall Mini Combi brings dual functionality to smaller sauna spaces. Its ultra-compact wall-mounted profile maximises every inch whilst the combi functionality allows you to enjoy both authentic Finnish dry heat and enveloping steam sessions. With a capacity for up to 15kg of stones, the Core Wall Mini Combi delivers consistent heat perfect for intimate sauna spaces.

HUUM heaters are manufactured in Estonia, crafted from stainless steel and other premium materials. The Core Wall Mini Combi's refined Nordic aesthetic makes it a statement piece in any home sauna, available in both black and white finishes.

Controller: Depending on the control system you opt for, the heater can be purchased either with the UKU Local (an easy-to-use controller without Wi-Fi or mobile functionality), or the UKU Wi-Fi Controller (a remote-control option with Wi-Fi capabilities).

Safety Distances: See the wider image bank of this heater for a diagram about this heater's safety distances:

[NEED SAFETY DISTANCES]

*SUFFICIENT AMOUNT OF STONES TO BE PURCHASED SEPARATELY

Product Specification

This heater must be installed by a qualified electrician. The Core Wall Mini Combi heater can be installed on both single-phase 240VAC and three-phase 400VAC power supplies.

Please refer to the "HUUM Electric Sauna Heaters - Single Phase Connection" in the "Downloadable Files" tab if installing the electric heater on a single-phase power supply.

Please ask your electrician to take photos when installing the heater for the first time in the unlikely case there are any issues with the heater further down the line. We will ask for these to diagnose the issue as best as possible.

Model Core Wall Mini Combi 3.0 Core Wall Mini Combi 3.6
Computational volume 2 m³ - 4 m³ 3 m³ - 5 m³
Power 3.0 kW 3.6 kW
Dimensions
Height 586 mm 586 mm
Width 350 mm 350 mm
Depth 265 mm 265 mm
Empty weight 11 kg 11 kg
Stone capacity 15 KG (1 pack) 15 KG (1 pack)


Replacement Elements: In case you need replacement elements for your HUUM Core Wall Mini Combi, these are the products you will require:

About HUUM

HUUM is the leading manufacturer when it comes to unique designs and technology. HUUM has been awarded for their innovative and stylish sauna products. In 2015, the DROP sauna heater won the Red Dot Award for Product Design. The inspiration for HUUM products comes from nature. Combined with age-old sauna knowledge, smart technology and modern Nordic design, HUUM heaters are a stylish and robust choice for any sauna. The stone capacity in HUUM heaters is optimised for the perfect, soft steam experience. The innovative HUUM heaters are easy to use and have all been UK CA-certified.

If you want to learn more about our HUUM heaters and explore more options, click on the following link: Our HUUM sauna heater collection.

HUUM UKU Controllers

The HUUM Core Wall Mini Combi can be purchased either with the UKU Local or the UKU Wi-Fi. Below are the features of the controller options.

UKU Local:

  • For heaters up to 18kW
  • Connectable to lights/ventilation and steamer
  • Overheating protection
  • Timer
  • Child safety lock
  • Available in a number of different colours, including black, white, wooden surrounds

UKU Wi-Fi:

  • For heaters up to 18 kW
  • Remote control via mobile app; Android / iOS
  • Connectable to lights
  • Unlimited users
  • Door magnet
  • Overheating protection
  • Timer
  • Child safety lock
  • Available in Black Glass or Mirror (Gold upon request too)

Warranty Information

For full details on product warranty, see HUUM's Limited Warranty Terms and Conditions. The heating elements are not included in the warranty.

Installation
Downloads
Delivery & Returns


For details, see our delivery information here.

Christmas and New Year's Shipping Update (Updated 2nd December 2025)

Please note the following changes to our pallet shipping and DPD delivery service on parcel orders over the Christmas period.

Our warehouse is fully closed for operation over the following days: Wednesday 24 December, Thursday 25 December, Friday 26 December, Wednesday 31 December and Thursday 1 January.

Orders requiring a pallet

The last dispatch date for orders requiring a pallet is Friday 19th December 2025. Pallet orders dispatched on this day must be booked and signed for with one of our sales team in advance.

Please note:

  • Pallets dispatched on 19th December will be delivered on either 22nd or 23rd December, depending on your postcode
  • We strongly advise against booking deliveries to the Highlands or Channel Islands close to the 19th December, as these may be held at the hub over the festive period
  • There may be limited availability for pallet shipping on this day and we cannot guarantee that available slots remain

We will commence our regular pallet shipping service on Monday 5th January 2026.

If you have any questions about your pallet order, please get in touch with our Sales team: +44 (0) 20 8050 2895 or email info@finnmarksauna.com

Small Parcel Orders

DPD will deliver as normal up to and including Tuesday 23rd December 2025. Our daily cut-off for next day delivery is 2pm, with orders placed by 3pm on Tuesday 23rd December being our final dispatch before Christmas. Whilst we use a DPD Next Day delivery service, this is not a guarantee - please order earlier to avoid disappointment.

Limited dispatch service: We will dispatch DPD orders on Monday 29th December and Tuesday 30th December only during the festive closure period.

We will commence our regular delivery service on Monday 5th January 2026.

*Estimated delivery times are applicable to the UK mainland only (excludes Highlands and Islands). Additional delays and charges will be required for Non-UK Mainland and Highlands and Islands deliveries.

Installation Videos
Accessories

FAQs

Why are sauna stones important for electric heaters?

Stones absorb and release heat gradually, helping to regulate the sauna environment. They also allow you to create löyly, soft bursts of steam, by pouring water over the hot surface. We supply high-quality olivine diabase and vulcanite stones, chosen for durability, heat retention, and even steam distribution.

What are the control options for sauna electric heaters?

You can choose between:

- Manual dials (typically integrated into the heater)
- Wall-mounted digital control panels
- Wi-Fi-enabled remote systems (via smartphone app)

Wi-Fi control allows you to preheat your sauna, set timers, and adjust temperature settings remotely, perfect for busy schedules or spontaneous sauna use.

Can I use electric sauna heaters in an outdoor sauna?

Yes, our electric heaters for sauna buildings are suitable for outdoor saunas as long as the space is properly insulated and protected from the elements. Many UK customers install them in garden cabins or purpose-built outdoor spaces. A qualified electrician should handle all electrical installations to ensure compliance.

How do I know which size sauna electric heaters is best?

Heater size depends on your sauna’s internal volume. As a rule of thumb, allow 1kW of power per 1 to 1.5 cubic metres. You may need a more powerful unit if your sauna includes large glass panels, poor insulation, or outdoor exposure. Our team can advise on the most efficient model based on your specific layout.

Glass loses heat more quickly than timber, so it increases the effective size of the sauna for heating purposes. The adjustments are:

Single-glazed glass adds 1.5m³ per 1m² of glass

Double-glazed glass adds 0.75m³ per 1m² of glass.

Are HUUM sauna heaters suitable for DIY sauna builds?

Yes, both electric and wood-fired options are well-suited to DIY sauna projects, provided they're installed safely and in line with local regulations.

If you're building your own sauna, we know it can be a daunting task. That's why our expert team offers free consultations, and material planning to help you get it right.

Whether you just need help choosing the right HUUM sauna heater, or need to assemble your full materials basket, we'll make sure you have everything needed to build a sauna that's authentic, safe, and made to last.

What makes HUUM sauna heaters unique in the market?

HUUM sauna heaters combine Estonian sauna tradition with modern design and smart functionality – a balance few brands achieve.

Founded by Siim Nellis, whose family has built sauna stoves for generations, HUUM draws on deep cultural knowledge to create heaters that prioritise soft steam, efficient performance, and timeless aesthetics. Whether electric or wood-burning, every HUUM sauna stove is crafted in Estonia using durable materials, minimalist forms, and a clear respect for the sauna as a ritual.