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HUUM sauna heater specs

HUUM CORE Wall Combi sauna heater specs and 3D room planner

Use this manual-checked HUUM CORE Wall Combi product page to compare the kW range, adjusted room volume, clearances, controller package, rocks, and buying path before you open the sauna in the designer.

HUUM CORE Wall Combi is a wall-mounted heater from HUUM for 106-460 cu ft adjusted sauna rooms. Key planning facts: 4.5-9 kW + steam output, 44 lbs stone capacity, and 78.7" minimum finished ceiling guidance, and controller guidance: HUUM UKU Combi-compatible certified controls.

Design with HUUM CORE Wall Combi Buy in North America at Sauna Marketplace

Power
4.5-9 kW + steam
Rated room volume
106-460 cu ft
Mounting
Wall-mounted
Rock capacity
44 lb
Dimensions
15.8" W x 15.8" D x 21.7" H
Side/rear clearance
1.57"
Front clearance
18.9"
Top to ceiling clearance
45.3"
Minimum finished ceiling
78.7"
Cold-surface rule
3.3 cu ft per sq ft (1 m3 per 1 m2) for uninsulated brick, tile, glass, or similar surfaces
Controllers
HUUM UKU Combi-compatible certified controls

Quick answers

What is HUUM CORE Wall Combi?

HUUM CORE Wall Combi is a wall-mounted heater from HUUM with 4.5-9 kW + steam output and 44 lbs stone capacity.

What sauna room size fits HUUM CORE Wall Combi?

The published adjusted room-volume range is 106-460 cu ft. Add glass, tile, stone, brick, concrete, or log exposure before choosing the final kW row.

What clearances does HUUM CORE Wall Combi need?

Plan 1.57" side/back clearance, 18.9" front clearance, and a 78.7" minimum finished ceiling check before placing benches or glass.

Which controller works with HUUM CORE Wall Combi?

Current controller guidance: HUUM UKU Combi-compatible certified controls. Match the controller, relay or power unit, and voltage to the selected kW row before ordering.

Where should I start with HUUM CORE Wall Combi?

Use the 3D designer to validate the room, benches, openings, clearances, and material schedule, then use Sauna Marketplace for the current package and buying path.

HUUM CORE Wall Combi size and clearance table

Variant Power Room volume Dimensions Rocks Side/back Front Minimum ceiling Controller
CORE Wall Combi 4CORE Wall Combi 4 4.5 kW + 2 kW steamer 106-248 cu ft 15.8" W x 15.8" D x 21.7" H 44 lb 1.57" 18.9" 78.7" HUUM UKU Combi-compatible certified controls
CORE Wall Combi 6CORE Wall Combi 6 6 kW + 2 kW steamer 177-318 cu ft 15.8" W x 15.8" D x 21.7" H 44 lb 1.57" 18.9" 78.7" HUUM UKU Combi-compatible certified controls
CORE Wall Combi 7CORE Wall Combi 7 7.5 kW + 2 kW steamer 248-389 cu ft 15.8" W x 15.8" D x 21.7" H 44 lb 1.57" 18.9" 78.7" HUUM UKU Combi-compatible certified controls
CORE Wall Combi 9CORE Wall Combi 9 9 kW + 2 kW steamer 283-460 cu ft 15.8" W x 15.8" D x 21.7" H 44 lb 1.57" 18.9" 78.7" HUUM UKU Combi-compatible certified controls

Best fit

  • 4.5-9 kW + steam HUUM heater family for 106-460 cu ft adjusted hot rooms.
  • Wall-mounted layouts where the heater footprint, front clearance, and bench approach are planned before ordering.
  • 44 lbs stone capacity with HUUM UKU Combi-compatible certified controls controller guidance.
  • Rooms that can meet the 78.7" minimum finished ceiling check for the selected size row.
  • Wall blocking, cladding buildup, and heater bottom height should be resolved before paneling goes in.

Designer checks

  • Size the room by adjusted volume, including the 3.3 cu ft per sq ft (1 m3 per 1 m2) for uninsulated brick, tile, glass, or similar surfaces rule where it applies.
  • Validate side/back clearance 1.57", front clearance 18.9", and bench setback before finalizing benches.
  • Check the 78.7" minimum finished ceiling against the room height.
  • Carry the selected HUUM UKU Combi-compatible certified controls package into the material schedule and heater placement notes.

Package notes

  • Heater body
  • 44 lb; 44 lbs
  • Installation and operation manual

Manual-backed facts

Source

HUUM CORE Wall Combi EU installation and operation manual

source: HUUM CORE Wall and CORE Wall Combi Installation and Operation Manual (EU 400V manual v5; PDF saved from HUUM public design resources; checked May 23, 2026)

Mounting

Wall-mounted

Floor clearance shows the minimum bottom height where the manual lists one.

Model numbers

CORE Wall Combi 4 / CORE Wall Combi 6 / CORE Wall Combi 7 / CORE Wall Combi 9

Useful when the store name and manual model number are not identical.

Room volume range

106-460 cu ft

Use adjusted sauna volume after cold surfaces, not just geometric room volume.

Cold-surface adder

3.3 cu ft per sq ft (1 m3 per 1 m2) for uninsulated brick, tile, glass, or similar surfaces

The calculator applies the brand-family coefficient before selecting a heater size.

Minimum finished ceiling

78.7"

Computed from body height, floor clearance, top clearance, and the manual minimum room height.

Maximum room height

Not listed for these sizes

Verify with the selected manual when designing unusually tall rooms.

Electrical/control

400V EU; verify regional electrical package; HUUM UKU Combi-compatible certified controls

Use the selected kW row and SKU when matching breakers, phases, relays, and controller packages.

Critical differences

EU 400V product: confirm North American availability Certified control system required

5 more notes shown below.

  • EU 400V product: confirm North American availability
  • Certified control system required
  • Add glass/tile/brick penalty before sizing
  • Sensor must be in HUUM designated area for listed ceiling clearance
  • EU 400V manual reference; confirm North American availability before purchase.
  • HUUM CORE Wall pages use EU 400V manual data; confirm North American availability before purchase.
  • HUUM publishes UKU Classic and UKU Glass/Mirror/Gold controller 3D resources; SaunaDesignPro places the selected UKU controller outside the hot room in 3D planning.

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