Thermo Spruce Sauna Models
If your buying brief starts with thermally modified wood, use this page to narrow the HACHILL sauna range before you compare exact specifications.
The 11 model routes below have approved model records that use either Thermo Finnish Spruce or Thermo spruce in the model’s wood / cabinet material field. They span Outdoor Cabin, Outdoor Cube, Hybrid Outdoor and Indoor Traditional formats, with marketed user ranges from 1–2 through 6 people.
Start with the installation setting, enclosure format and user range. Then open the exact model to confirm which components the material entry covers, the ordered heating package, dimensions, electrical requirements and supplied scope.
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Choose the product route first
A shared material label does not make these saunas interchangeable. The fastest way to build a useful shortlist is to decide which product route fits the project.
Outdoor Cabin · 4 models
CBN18, CBN21, CBN22, CBN23
Cabin models cover current marketed routes from 3–4 people through 6 people. Use this family when the project already points toward a cabin-style outdoor enclosure, then compare the exact model and heating package.
Outdoor Cube · 3 models
CS15, CS22, CS30
Cube models cover current marketed routes from 2–4 people through 4–6 people. CS22 and CS30 share a 4–6 person route but have different source-listed heating references, so capacity alone is not enough to choose between them.
Hybrid Outdoor · 3 models
CS29, CS23, CS21
Hybrid models step from 1–2 to 4–6 people. Their source records do not describe one common heating package: review the exact model before specifying heater and infrared equipment.
Indoor Traditional · 1 model
ID14L
ID14L is the indoor traditional route in this shortlist, with a current marketed 3–4 person product route. Its material record says Thermo spruce, not Thermo Finnish Spruce.
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Quick shortlist by marketed user range
Use marketed capacity as a first filter, not as a substitute for checking bench layout, usable space or the exact model specification.
Already know the target capacity? Continue to HACHILL’s current 2-person, 4-person or 6-person sauna routes where applicable, then return to the exact model for final specification review. —
Material terminology: what is actually confirmed
The model evidence uses two different material labels:
- Thermo Finnish Spruce — CBN18, CBN21, CBN22, CBN23, CS15, CS21, CS22, CS23, CS29 and CS30.
- Thermo spruce — ID14L.
This page preserves those source terms instead of silently standardizing them.
For procurement, treat the material entry as an exact-model wood / cabinet material reference. If your specification needs to distinguish framing, exterior boards, interior panels, benches, floor, trim or other components, request the current material-by-component scope for the selected model.
The material label alone does not define the heater, infrared package, electrical supply, dimensions, certification scope, warranty or destination-specific installation requirements.
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Compare the exact models
Outdoor Cabin
CBN18 · 6 Person Outdoor Cabin Sauna
Material record: Thermo Finnish Spruce
Heating reference: HARVIA STOVE (OPTION)
Why review it: Start here when the project calls for the six-person Cabin route.
Next step: Open CBN18 and confirm the exact material scope, heater package, site dimensions and supplied components.
CBN21 · 3–4 Person Outdoor Cabin Sauna
Material record: Thermo Finnish Spruce
Heating reference: HARVIA STOVE (OPTION)
Why review it: One of two 3–4 person Cabin routes in this shortlist.
Next step: Compare CBN21 directly with CBN23 at exact-model level before choosing.
CBN22 · 4–5 Person Outdoor Cabin Sauna
Material record: Thermo Finnish Spruce
Heating reference: HARVIA STOVE (OPTION)
Why review it: Use it when the Cabin brief sits between the current 3–4 and 6-person routes.
Next step: Confirm the exact model specification and site requirements before quoting.
CBN23 · 3–4 Person Outdoor Cabin Sauna
Material record: Thermo Finnish Spruce
Heating reference: HARVIA STOVE (OPTION)
Why review it: A second 3–4 person Cabin route.
Next step: Compare its exact model information with CBN21 rather than treating both as the same product.
Outdoor Cube
CS15 · 2–4 Person Outdoor Cube Sauna
Material record: Thermo Finnish Spruce
Heating reference: Electric Heater (HARVIA OPTION)
Why review it: The smaller Cube route in this material-led shortlist.
Next step: Confirm the selected heater and current supplied scope on the exact model.
CS22 · 4–6 Person Outdoor Cube Sauna
Material record: Thermo Finnish Spruce
Heating reference: 9 kW Electric Heater (HARVIA OPTION)
Why review it: One of two current 4–6 person Cube routes.
Next step: Compare it with CS30 because the source-listed heating references differ.
CS30 · 4–6 Person Outdoor Cube Sauna
Material record: Thermo Finnish Spruce
Heating reference: HARVIA STOVE (OPTION)
Why review it: A second 4–6 person Cube route.
Next step: Use the exact-model pages to decide between CS30 and CS22; do not select on capacity alone.
Hybrid Outdoor
CS29 · 1–2 Person Hybrid Outdoor Sauna
Material record: Thermo Finnish Spruce
Heating reference: Far-infrared panels and red-light tubes are listed; the heater field is open / not supplied.
Why review it: The smallest marketed user-range route in this 11-model shortlist.
Next step: Confirm the final heating package and supplied scope before ordering.
CS23 · 2–4 Person Hybrid Outdoor Sauna
Material record: Thermo Finnish Spruce
Heating reference: Far-infrared panels and red-light tubes are listed; the heater field is open / not supplied.
Why review it: The mid-range Hybrid route for a 2–4 person buying brief.
Next step: Confirm the exact configuration rather than assuming it matches CS29 or CS21.
CS21 · 4–6 Person Hybrid Outdoor Sauna
Material record: Thermo Finnish Spruce
Heating reference: 9 kW Electric Heater (HARVIA OPTION), plus far-infrared panels and red-light tubes in the source record.
Why review it: The larger marketed user-range Hybrid route in this shortlist.
Next step: Confirm which heating components belong to the ordered configuration.
Indoor Traditional
ID14L · 3–4 Person Indoor Traditional Sauna
Material record: Thermo spruce
Heating reference: Heater (HARVIA OPTION)
Why review it: The only Indoor Traditional route in this evidence-backed material shortlist.
Next step: Keep its material wording separate from the ten “Thermo Finnish Spruce” models unless HACHILL later approves a normalization rule.
Do not choose on the material label alone
1. Material by component
Ask what the wood / cabinet material entry covers on the selected revision. If the project specification separates exterior, interior, benches, framing, floor or trim, request those component-level details explicitly.
2. Exact model and marketed user range
Use the current model route as a shortlist signal. Final seating layout, clearances and usable internal space remain model-specific.
3. Heating package
The 11 records do not use one common heating description. Confirm the exact heater, infrared equipment and controls, including whether each item is included, optional or separately supplied.
4. Site and access
Confirm the current model dimensions, delivery route, assembly access and placement constraints before site work is fixed.
5. Destination requirements
Electrical supply, documentation, certification scope and local installation responsibilities depend on destination and configuration. Do not copy requirements from a sibling model.
6. Branding and project scope
For wholesale, OEM or project orders, identify the model IDs, quantity, destination, branding or finish requests, documentation needs and any configuration changes that must be reviewed before quotation.
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A better RFQ starts with a shortlist
You do not need a finished technical specification to start the conversation.
Send:
- the model IDs you are considering;
- the target user range and installation setting;
- destination country or market;
- expected quantity or project scale;
- preferred heating route, if already decided;
- any branding, finish or configuration requests;
- the documents your buyer, installer or project team needs.
HACHILL can then confirm which exact product information and order scope apply to the selected model instead of treating a material label as a complete specification.
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FAQ
The current approved evidence supports the model’s wood / cabinet material field only. It does not by itself prove that every structural, interior, exterior, bench, floor or trim component uses the same material. Request a material-by-component specification when that distinction matters.
Those are the exact terms used in the approved model records. Ten models use “Thermo Finnish Spruce”; ID14L uses “Thermo spruce”. They are kept separate until HACHILL approves a normalization rule.
No. The source-listed heating references vary across Cabin, Cube, Hybrid and Indoor Traditional models. Heater and infrared scope must be confirmed for the exact model and order.
Use the marketed user range as the first filter: CS29 for 1–2; CS15 or CS23 for 2–4; CBN21, CBN23 or ID14L for 3–4; CBN22 for 4–5; CS21, CS22 or CS30 for 4–6; and CBN18 for the six-person Cabin route. Then check the exact product page before making a final decision.
A buyer can start with a shortlist, destination, quantity, user range and open configuration questions. Final material scope, heater/electrical details, documentation and commercial terms still need to be confirmed for the selected model and order.