Product Description
An all-Thermowood tub with the Basic profile
TimberIN Nordic™ Thermowood Basic is a round tub with Thermowood floor, walls and benches. Wood forms the usable bathing interior, rather than cladding around a synthetic shell. It is made in Thermowood only, with no plastic or fibreglass shell. Its Basic profile has no wide rim and no lid in the base (height 1,020 mm), and a more contained outer edge than the Nordic™ Deluxe.
Choose the exact size, heater layout and equipment for the project, with the final order drawing defining the manufactured configuration.
Four sizes, with capacities from four to fourteen
| Internal diameter | External diameter | External height | Manufacturer capacity | Approximate volume |
|---|---|---|---|---|
| 1,600 mm | 1,680 mm | 1,020 mm | 4–6 people | 1,400 litres |
| 1,800 mm | 1,880 mm | 1,020 mm | 6–8 people | 1,800 litres |
| 2,000 mm | 2,080 mm | 1,020 mm | 8–10 people | 2,300 litres |
| 2,200 mm | 2,280 mm | 1,020 mm | 10–14 people | 2,700 litres |
These manufacturer figures are approximate because each tub is individually built. Use the final drawing to validate access, base dimensions and lifting arrangements.
The capacity figures are manufacturer ranges, not a separate guarantee of comfortable seating. An internal heater occupies part of the circle. Choose the diameter for the normal group and heater position rather than the maximum person count alone.
Twelve heatings around the internal 26 kW or external 22–40 kW AISI 316 stove (by size)
| Heater | Position and specification | Documented bench | Practical effect |
|---|---|---|---|
| External stove | AISI 316; 22 kW up to 1,800 mm, 28 kW at 2,000 mm, 40 kW at 2,200 mm; beside the tub | 360° | Preserves the complete bench; adds heater and connections beside the tub |
| Internal wood stove | AISI 316, 26 kW, within the tub behind protection | 270° | Keeps heating within the tub’s circle; reduces the seating length |
| Electric 6 kW | 220 V single phase (26 A) or 380 V three phases (14 A); 9, 12 or 15 kW available | 360° | No stove or chimney; possible with the assembled tub and with the kit |
| Hybrid electric | 6 kW electric heater plus the internal or the external wood stove | 270° or 360° | Electric heating and wood firing in one tub |
| Hybrid heat pump | 5 kW Wi-Fi heat pump (heating and cooling) plus the internal or the external wood stove | 270° or 360° | The sand filter is required and added automatically |
| Connections for your own heater | 50 mm connections with shut-off valves; no heater supplied | 360° | Links the tub to a heating system you already have |
| Pellet | 30 kW AISI 316 pellet stove, integrated or external, controlled over Wi-Fi | Integrated: reduced; external: 360° | Automatic feeding instead of logs |
| Gas | 24 kW LPG (propane) water heater at 30 mbar; the pressure reducer is not included | 360° | Placed beside the tub |
| Bioheater | Bioheater, 19 kW, with connections, fuel tank, circulation pump and smart plug | 360° | Placed beside the tub |
Every heating is offered in all four diameters: 48 combinations. To order without a heater, choose the connections for your own heater. Electric heating is possible with the pre-assembled tub and with the flat-packed kit.
The external heater body is approximately 400 × 620 × 670 mm before connections and safe clearances. Add this to the tub footprint when planning the site.
No fixed heating time is documented. Water volumes range from approximately 1,400 to 2,700 litres, and starting temperature and outdoor conditions change the result.
Wooden equipment, covers and spa options
Included: the benches and the mixing paddle. Stairs are options: type A (£190), type B (£60) and type C (£290). Most option groups accept several choices or “None”; shipping and water release take one choice.
Separately selected UK options include:
- Air-bubble massage with a wooden equipment box (£680)
- Sand filtration with a large wooden enclosure (£790; required, and added automatically, with the heat-pump hybrids)
- Two or four LEDs
- With the wood and pellet stove heatings: a chimney fence, an ash shovel and rake and, with the internal stove only, a stainless-steel lid on the heater
- Wooden mini-bar (£35)
- A wooden lid (£190) and/or an insulated leather lid (£490), with either stove
The documented wooden cover comes in two sections, according to the manufacturer sheet. Confirm the handling arrangement and final dimensions for the selected size.
The insulated leather lid fits with either stove; for the internal stove it has a cut-out.
UK Smart SPA control choices
The UK page offers Wi-Fi app/voice control kits for air massage (£160) and sand filtration (£160), and a scheduled on/off kit for the electric heater (£190), which is available with the electric heatings only.
A control kit does not supply a heater. Confirm the complete electrical arrangement before ordering. Preserve Wi-Fi coverage and service access for any selected controls.
The exact sand-filter reference, flow and electrical data, air-outlet count and LED modes are not documented for this product. Confirm them in the final equipment schedule. Water hydromassage and UV filtration are not current UK options.
Prepare the site and drainage
Add steps, cover-handling space, technical boxes and the external heater where selected to the tub footprint. Determine the base, full operating load and clearances for the exact site and order; do not automatically reuse another product’s figures.
The final drawing and heater instructions must guide preparation. Any selected electric accessories need an appropriate installation based on their own specifications.
For emptying, the UK selector preselects an external water tap (£70), which you can untick, or offers the tap with a quick adapter for 12.5 or 15 mm garden hoses (£95).
Assembled or kit delivery
The UK configurator offers factory-assembled and flat-packed kit delivery in both green and yellow zones. Every heating, electric included, is available both assembled and as a kit. A kit may help with restricted access, but confirm the actual package sizes and feasibility of assembly for the order.
There is no separately selectable driver-unloading service in the UK page. Agree unloading, equipment, access and final positioning before dispatch; delivery-zone pricing does not establish that the tub will be placed on its base.
Care and order documents
The exact model file does not establish a detailed Thermowood care schedule, winter procedure, water-treatment protocol or warranty terms. Obtain the instructions for the actual wooden tub, heater and selected equipment before commissioning.
Why choose Thermowood Basic?
Choose Thermowood Basic for the all-Thermowood tub without the wide rim: four sizes for 4–14 people and twelve heatings, adding only the equipment useful to the project.
Compared with TimberIN Nordic™ Wooden Basic, it retains the documented Basic geometry but uses Thermowood in place of spruce. Wooden Basic is the spruce version; both offer the same twelve heatings and options.
Compared with TimberIN Nordic™ Deluxe, Basic has the same capacity ranges but is approximately 200 mm narrower at the outermost point for the same internal diameter. Deluxe adds the wide rounded rim and is also made in Spruce. Compare all wooden hot tubs.
The deciding points are the material within the bathing area, available installation space and the chosen heater and equipment layout.
Frequently asked questions
The selected configuration, final drawing and accepted order documents take precedence for the product supplied.
Which sizes and capacities are available?
Internal diameters are 1,600 mm for 4–6 people and about 1,400 litres; 1,800 mm for 6–8 and 1,800 litres; 2,000 mm for 8–10 and 2,300 litres; and 2,200 mm for 10–14 and 2,700 litres. Figures are approximate.
Which diameter should I use to plan access?
Documented external diameters are approximately 1,680, 1,880, 2,080 and 2,280 mm. Confirm critical external dimensions on the final drawing.
Which heaters can I choose?
Twelve: the internal 26 kW or external AISI 316 wood stove (22 kW up to 1,800 mm, 28 kW at 2,000 mm, 40 kW at 2,200 mm); a 6 kW electric heater; electric hybrids with either stove; 5 kW heat-pump hybrids with either stove (the sand filter is required); integrated or external 30 kW Wi-Fi pellet stoves; a gas heater; the bioheater; or connections for your own heater.
How do internal and external heaters affect seating?
The external heater preserves 360° of wooden bench seating. The protected internal heater occupies part of the tub and leaves 270°.
Is there an electric, hybrid or heater-free version?
Yes. Choose the 6 kW electric heater (220 V single phase, 26 A, or 380 V three phases, 14 A; 9, 12 or 15 kW available), an electric or heat-pump hybrid, or, without a heater, “Connections for your own heater”. Electric heating is possible with the assembled tub and with the kit.
How long will heating take?
No fixed time is documented. Volumes range from approximately 1,400 to 2,700 litres, and starting temperature and weather affect the result.
Which items are listed as included?
The benches and the paddle. Stairs are optional extras: type A (£190), type B (£60) and type C (£290).
Which spa equipment and controls are available?
Air massage, sand filtration and two or four LEDs, plus UK Smart SPA control modules. Confirm specifications and compatibility. The electric-heater control kit is available with the electric heatings only. Water hydromassage and UV filtration are not offered.
Which lids are available?
A wooden lid and an insulated leather lid are separate UK choices. The wooden lid costs £190 and the leather lid £490; choose either, both or none, with either stove. The documented wooden cover comes in two parts; confirm the exact construction.
Does it arrive assembled or as a kit?
Both formats are offered in the UK green- and yellow-zone delivery groups. Confirm transport dimensions, access and assembly arrangements for the actual order.
Who unloads and positions the tub?
Agree responsibilities and handling equipment before dispatch. No separate driver-unloading service is selectable on the UK page, and final placement is not established by delivery-zone pricing.
Which installation, care and warranty instructions apply?
Request the final drawing and instructions for the exact tub, heater and accessories. The current model file does not establish sufficiently detailed base, filled-load, maintenance or warranty information to replace those order-specific documents.
Hello
Attached are two pictures of our tub in situ. Setting it up was a challenge but we have siliconed every joint and it is holding water fine now. Its brilliant and heats up so quickly! We love it and so do our yoga guests.