HUUM CORE Aspen Pkg CORE Series Sauna Heater Package, Aspen Wood Exterior, Up to 10.5kW
The HUUM CORE Aspen Package is the natural aspen version of the CORE - the same stainless steel frame and full CORE performance as every other CORE package variant, with pre-fitted aspen wood side panels that arrive factory-installed. Aspen is the palest and most neutral of the three wood options in the CORE range. Where alder has a warm pale-brown tone and thermo-aspen shifts to a rich dark-brown through heat treatment, natural aspen is a clean pale cream-white - the lightest and most minimal of the wood finishes. This makes the CORE Aspen the correct choice for sauna interiors built around very light materials: white aspen or clear spruce walls, minimal light-coloured bench surfaces, and contemporary sauna designs where the heater should introduce as little colour warmth as possible and simply blend into a light-toned palette. The package includes the CORE Aspen heater, UKU Local Black control, and sauna stones in all three output levels selected at checkout.
Aspen - the palest wood in the CORE range
Aspen is one of the most common sauna woods in Estonia and across the Baltic and Nordic regions. It is a fine-grained, pale cream-white hardwood that is naturally smooth and almost entirely free of resin - an important property in a sauna environment where resin can become sticky and unpleasant under sustained heat. Natural aspen does not colour the sauna air with fragrance the way alder does; it contributes minimally to the sensory environment and lets the sauna space itself dominate. The tone is the palest of any wood used in Nordic sauna construction - noticeably lighter than alder and dramatically lighter than thermo-aspen. For buyers who have built or are planning a very light, minimalist sauna interior - white aspen benches and walls, clear-finished spruce, or pale Nordic wood - the CORE Aspen is the heater that integrates most naturally into that palette.
Pre-fitted panels - installs as a finished product
Like the CORE Alder and CORE Thermo-Aspen, the CORE Aspen arrives with wood side panels already installed on the stainless steel frame by HUUM's factory. No fabrication work, no panel installation, no wood sourcing. The aspen panels cover the visible side faces of the heater; the stainless top rim with its selected inlay finish remains exposed. The combination of pale cream-white aspen panels and the stainless top produces a heater that reads as a light, clean material element in the sauna room - distinct from the darker, more visually weighted alternatives in the CORE range.
Same CORE performance in every dimension
The CORE Aspen is technically identical to every other CORE package variant in all specifications. Same three output levels (6.5kW, 9kW, 10.5kW), same 32.7"H x 15.2"W x 15.2"D dimensions, same 42-lb heater weight, same 66-lb stone capacity, same 2-inch safety clearance from combustible materials on all sides, same full bench embedding option, same 230°F maximum temperature via the UKU control, and same 3-year private warranty. The aspen panels are a surface finish on the stainless frame - no technical specification changes between this and any other CORE package variant.
Complete floor-standing sauna heater package with pre-fitted aspen wood side panels in three output levels: 6.5kW (177-318 cu ft), 9kW (283-460 cu ft), 10.5kW (354-566 cu ft) - select at checkout. Includes CORE Aspen heater (aspen panels factory fitted, inlay finish selected at checkout), UKU Local Black control, and sauna stones. Aspen: pale cream-white, resin-free, the lightest wood tone in the CORE range - ideal for very light and minimalist sauna interiors. All three variants: 32.7"H x 15.2"W x 15.2"D, 42 lbs, 66 lb stone capacity. 2" safety clearance all sides. Full bench integration permitted. Max temperature 230°F. IPX4 rated. 240V / 1-phase. 6.5kW: 30A / 10 AWG. 9kW or 10.5kW: 50A / 8 AWG. Made in Estonia by HUUM. 3-year private / 1-year commercial warranty.
Complete package - control + stones included 6.5kW / 9kW / 10.5kW - select at checkout Pre-fitted aspen wood side panels Pale cream-white - lightest CORE wood tone Resin-free - ideal for sauna environments Inlay finish selected at checkout No fabrication work required 2" safety clearance all sides Full bench integration permitted 66 lb stone capacity Max temperature 230°F UKU Local Black control included Compact 15.2" x 15.2" square footprint IPX4 wet area rated Made in Estonia 3-year private warranty
Specifications
Output selection - choose at checkout
| 6.5kW |
177 to 318 cu ft | 30A breaker | 10 AWG |
| 9kW |
283 to 460 cu ft | 50A breaker | 8 AWG |
| 10.5kW |
354 to 566 cu ft | 50A breaker | 8 AWG |
| Voltage (all) |
240V / 1-phase / 60 Hz |
| Certification |
SGS Listed |
Dimensions and weight (all variants identical)
| Height |
32.7" (830 mm) |
| Width |
15.2" (385 mm) |
| Depth |
15.2" (385 mm) |
| Weight |
42 lbs (19 kg) |
| Mounting |
Floor-standing - sidewall, corner, or bench embedded |
Exterior and stones
| Side panels |
Aspen wood - pre-fitted at factory |
| Aspen tone |
Pale cream-white - lightest wood option in CORE range |
| Resin content |
Resin-free - safe and clean in sauna heat |
| Inlay finish |
Selected at checkout (Black default) |
| Top rim |
Stainless steel with inlay finish |
| Stone capacity |
66 lbs (30 kg) - all variants |
| Stone size |
5-10 cm (2-4") |
| Stones included |
Yes - 2 boxes included in package |
Safety distances (all variants identical)
| All sides - combustible materials |
2" (50 mm) |
| Ceiling clearance |
32.7" (830 mm) |
| Bench integration |
Permitted - full-length embedding in bench |
Control and performance
| Control included |
UKU Local Black |
| WiFi capability |
No - upgrade to UKU WiFi sold separately |
| Temperature range |
104°F to 230°F (40°C to 110°C) |
| IP rating |
IPX4 - wet area approved |
| HUUM app |
Compatible with UKU WiFi upgrade |
Construction and warranty
| Frame material |
Stainless steel |
| Side panels |
Aspen wood - factory fitted |
| Private use warranty |
3 years (elements excluded) |
| Commercial warranty |
1 year (elements excluded) |
| Origin |
Designed and made in Estonia by HUUM |
What's included
HUUM CORE Aspen heater with pre-fitted aspen wood panels (output and inlay finish selected at checkout)
UKU Local Black control panel
Sauna stones - 2 boxes (66 lbs total)
Adjustable leveling legs (4)
Installation and operation manual
Optional upgrades: UKU WiFi control panel, UKU Glass panel. HUUM also offers CORE panels in alder and thermo-aspen as alternative wood finishes.
Why the HUUM CORE Aspen Package stands out
Palest wood tone in the CORE range
Aspen is a pale cream-white, the lightest wood option on the CORE. Where alder is warm pale-brown and thermo-aspen is rich dark-brown, aspen reads as nearly white in sauna lighting. It is the correct choice for very light, minimalist sauna interiors where the heater should blend into the palette rather than introduce warmth or contrast.
Resin-free - clean in sauna heat
Aspen is naturally resin-free. In sauna environments where sustained high temperatures can cause resins in some woods to become sticky or emit odours, aspen produces none of these effects. It is one of the traditional sauna woods in Nordic and Baltic regions precisely because of its clean behaviour at high temperatures.
Pre-fitted panels - no fabrication needed
The aspen panels arrive factory-installed on the CORE frame. No wood sourcing, no panel installation, no adhesive. The CORE Aspen installs as a finished natural wood heater from the moment it arrives. Select output and inlay finish at checkout, connect the electrician, and it is operational.
Same CORE performance as all variants
Technically identical to the CORE Black, BK/ST, Alder, and Thermo-Aspen - same 32.7"H x 15.2"W x 15.2"D, same 66-lb stone capacity, same 2-inch safety clearance, same bench embedding option, same 230°F maximum temperature. The aspen panels are a surface finish, not a structural change.
2" clearance and bench integration
Only 2 inches required from combustible materials on all sides. Full bench embedding permitted with the aspen panels in place. With pale aspen panels at bench level, the embedded CORE Aspen creates a seamless light-wood connection between the heater and the bench structure.
Complete package - ready to install
Heater with aspen panels, UKU Local Black control, and 2 boxes of stones. Nothing to source separately. The only remaining steps are selecting output and inlay finish at checkout and the electrical connection by a licensed electrician.
About HUUM
Made in Estonia - award-winning design
HUUM CORE Aspen. The CORE in the palest natural wood finish - for light and minimalist saunas.
HUUM is an Estonian sauna heater manufacturer. The CORE Aspen is the palest wood version of the CORE series - the same performance and UKU control compatibility as every other CORE package, with factory-fitted aspen wood panels in the pale cream-white tone that aspen is known for. For sauna designers and builders working with very light material palettes - white aspen walls, clear spruce, pale Nordic wood - the CORE Aspen is the heater that integrates without creating visual contrast. The same 2-inch safety clearance, bench embedding option, and complete package contents apply as with every other CORE variant.
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Pre-fitted aspen panels - pale cream-white, resin-free, factory installed
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Identical specs to CORE Black - same output, dimensions, performance, warranty
- 2" safety clearance, bench embedding, 230°F max
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Complete package - UKU Local Black and 2 boxes stones included
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SGS Listed, made in Estonia - 3-year private / 1-year commercial warranty
Aspen vs Alder vs Thermo-Aspen
Choosing between the three CORE wood finishes
All three wood panel packages arrive factory-fitted with identical technical specifications and complete package contents. Aspen (this listing) is pale cream-white - the lightest and most neutral, for very light or minimalist saunas where the heater should disappear into the palette. Alder is warm pale-brown - the traditional Nordic sauna wood tone, suits cedar, spruce, and alder interior rooms. Thermo-aspen is rich dark-brown - heat-treated for enhanced durability and moisture stability, suits thermally modified bench wood, dark cedar, and refined contemporary interiors. The choice is purely aesthetic: match the heater wood tone to the dominant wood surface in the sauna room.
A standard 2-pole breaker (30A for 6.5kW, 50A for 9kW and 10.5kW) and appropriate AWG wire are required. Do not connect to a GFI/GFCI breaker. A licensed electrician is required for all connections.
Manuals and Documents
Installation and Operation Manual
Warranty
3-year private warranty / 1-year commercial warranty (elements excluded)
The HUUM CORE Aspen is covered by a 3-year limited warranty for private (residential) use and a 1-year limited warranty for commercial use from the date of purchase. Heating elements are excluded from warranty coverage. The warranty covers defects in manufacturing and materials - including the aspen wood panels - under normal use conditions. The warranty is void if: the heater is connected to a GFI/GFCI breaker, the buyer fails to follow the installation and operation manual, incorrect or insufficient stones are used, or the product is damaged by failure to follow instructions. Proof of purchase from an authorized HUUM dealer is required for warranty claims. We are an authorized HUUM dealer.
