Product Description
A configurable polypropylene hot tub
TimberIN Nordic Flex™ combines a round polypropylene shell with timber cladding. Its appeal is the freedom to match the tub to your group, space and heating preference: four diameters, six current UK heating selections including a no-heater version, three timber choices and four bench styles.
Dimensions, capacity and water volume
| Internal diameter | External diameter: top / base | External height | Manufacturer’s capacity | Approx. water volume | Approx. empty weight |
|---|---|---|---|---|---|
| 1,600 mm | 1,920 / 1,640 mm | 1,040 mm | 4–6 people | 1,800 litres | 200 kg |
| 1,800 mm | 2,120 / 1,840 mm | 1,040 mm | 6–8 people | 2,280 litres | 250 kg |
| 2,000 mm | 2,320 / 2,040 mm | 1,040 mm | 8–10 people | 2,800 litres | 280 kg |
| 2,200 mm | 2,520 / 2,240 mm | 1,040 mm | 10–12 people | 3,400 litres | 300 kg |
These manufacturer figures are approximate because each tub is made individually. Confirm critical gate, foundation and lifting measurements on the final order drawing.
Capacity is a manufacturer range, not a promise of identical comfort for every group. An internal stove reduces bathing space. Closed polypropylene benches can reduce water volume by approximately 25%, lowering the amount of water to heat and treat, particularly in the larger sizes.
Current UK heating choices
| Configuration | Documented information | Practical effect |
|---|---|---|
| Electric | 6 kW heater documented | Keeps the bathing area free of a stove; confirm the final output and connection. |
| External wood stove | BFTS-50, 22 kW | Preserves the interior circle but adds a separate heater and connections beside the tub. |
| Internal snorkel wood stove | BFTV M, 18 kW | Keeps heating within the tub but occupies some bathing space. |
| External wood + electric hybrid | External stove with electric heating | Combines the two energy sources with the stove beside the tub. |
| Internal wood + electric hybrid | Internal stove with electric heating | Combines the two energy sources with the stove in the bathing area. |
| No heater | Current UK selector choice | No heater is supplied through this selection; confirm any separately required heating in the order. |
The current UK selector has no integrated-stove or integrated-hybrid version and no heat-pump option. The electric-heater add-ons list a default 6 kW specification and higher 9/12 kW or 15/18 kW choices, plus a field for the required power and connection. Confirm how these choices relate to the selected main configuration to avoid an incorrect specification.
No fixed heating time is documented. With approximately 1,800–3,400 litres, results depend on volume, starting temperature, heating equipment and weather. For electric or hybrid heating, a qualified electrician must specify the supply, cable and protection. Current figures in the source documents conflict, so no electrical current value is stated here.
Cladding, benches, colours and included choices
The UK cladding choices are Siberian spruce, Siberian larch or thermowood. Oak is not offered in the current UK add-ons. Five shell colours are available: white, black, blue, light grey and dark grey, with the references shown in the configurator.
Choose basic wooden benches, the shaped “sunny type” wooden benches, open polypropylene benches or closed polypropylene benches. Open versions leave the space below accessible; closed benches provide a continuous surface and reduce water volume.
Spruce is labelled as already included. Basic wooden benches and a three-step ladder are listed without an additional price; alternative B, A and C steps are paid choices. Select and verify every expected item in the final summary. The rounded wooden edge with wooden lid is a paid UK option, not an automatically included cover.
Insulation, filtration, massage and lighting
Wall and floor insulation are separate paid choices. The source states that floor insulation adds approximately 70 mm to the overall height, while wall insulation adds approximately 160 mm to the lower external diameter. The exact insulation material and thickness are not documented.
Other current choices include:
- Sand filtration with a large wooden enclosure.
- Hydromassage and air-bubble massage.
- Two or four LEDs, with four recommended for 1,800–2,200 mm models.
- Smart SPA controls for the corresponding massage system, filter or scheduled ON/OFF electric heating.
- An insulated leather cover with a rounded polypropylene top edge instead of the wooden edge/cover arrangement.
Confirm filter specification and flow, jet counts, lighting modes and control compatibility in the final equipment documents. A filter-plus-UV arrangement appears in family documentation, but UV is not a current UK add-on on this page. Ask about it separately if required; do not assume it comes with the filter.
Prepare the foundation, access and drainage
The base must be level and designed for the actual tub, water, bathers and equipment. The largest shell holds approximately 3,400 litres before adding its roughly 300 kg empty weight, users and accessories. Have the support validated for the precise configuration rather than using a generic load from another model.
Add steps, cover handling, technical enclosures and an external heater, where selected, to the tub’s footprint. Use the final drawing and equipment instructions to plan access and maintenance space.
The UK drain choices are an external tap or a tap with a quick connector for a 12.5 or 15 mm hose. The source states that the tap position changes with floor insulation.
Delivery and unloading
Approximate transport envelopes range from 2.00 × 1.25 × 2.00 m for the 1600 to 2.48 × 1.28 × 2.58 m for the 2200, plus an equipment package. Confirm the exact package sizes before arranging access.
The UK shipping choices are the green zone south of Leeds at £198 and the listed yellow-zone areas at £429. Confirm the delivery address, vehicle access, unloading arrangements and movement to the final base before ordering. The UK selector has no separate driver-unloading option; do not assume delivery includes final positioning.
Maintenance and warranty
Follow the manuals for the ordered shell, heater and equipment for maintenance, water treatment and winterisation. The TimberIN supplement documents a 24-month manufacturer warranty from receipt, subject to its full terms, proof of purchase, correct installation and compliance with the supplied instructions.
Why choose Nordic Flex™?
Nordic Flex™ suits buyers who want a round polypropylene shell with a choice of sizes, heater locations and SPA equipment. Its per-diameter figures make the effects on capacity, footprint and water volume clear.
Nordic Core™ instead uses fibreglass, offers two sizes across a 4–8-person range and centres on integrated wood-fired or hybrid heating. Nordic Square™ offers a square layout for a larger group, with a range-wide 10–16-person capacity and heat-pump combinations among its current choices.
Choose Flex™ for its round polypropylene plan, four documented capacity ranges and current UK choice of internal or external wood heating, electricity, hybrid heating or no heater.
Frequently asked questions about TimberIN Nordic Flex™
These answers cover the configurations currently documented. The final drawing, configuration summary and order documents take precedence for the product purchased.
Which sizes and capacities are available?
Internal diameters are 1,600 mm for 4–6 people and approximately 1,800 litres; 1,800 mm for 6–8 and 2,280 litres; 2,000 mm for 8–10 and 2,800 litres; or 2,200 mm for 10–12 and 3,400 litres. These manufacturer figures are approximate.
Which dimensions should be used for access planning?
Upper external diameters are approximately 1,920, 2,120, 2,320 or 2,520 mm. Floor insulation adds approximately 70 mm to height; wall insulation adds approximately 160 mm to the lower diameter. Confirm critical measurements on the final drawing.
Which heating options are currently available in the UK?
The selector offers electric heating, an external wood stove, an internal snorkel wood stove, either wood stove combined with electric heating, or no heater. Integrated-stove versions and heat pumps are not current UK choices on this page.
How do the internal and external wood stoves differ?
The external BFTS-50 22 kW stove preserves the full interior circle but needs space and connections beside the tub. The internal BFTV M 18 kW stove sits within the tub and takes up some bathing space.
What electrical output and connection are required?
The source documents a 6 kW electric heater, and UK add-ons also list higher outputs. Confirm the final power level and supply for the order. A qualified electrician must specify the cable and protection. No current figure is published here because the available source documents conflict.
How long does heating take?
No fixed time is documented. Results depend on diameter, the approximately 1,800–3,400 litres of water, starting temperature, heater and outdoor conditions.
Which items are described as included?
UK spruce cladding is labelled already included, and basic wooden benches and a three-step ladder have no displayed surcharge. Confirm them in the final summary. Both the wooden edge/lid and insulated leather cover with polypropylene edge are paid UK options.
Which bench styles can I choose?
Choose basic wood, shaped “sunny type” wood, open polypropylene or closed polypropylene. Closed benches create a continuous surface and can reduce water volume by approximately 25%; open benches leave the space beneath accessible.
Which SPA equipment and controls can be added?
The current configurator lists sand filtration, hydromassage, air bubbles, two or four LEDs and Smart SPA kits for the corresponding systems. Confirm filter flow, jet counts, lighting modes and control compatibility in the final specification.
Is a UV filter available?
A filter-plus-UV arrangement appears in family documentation, but no UV add-on is currently listed for UK Nordic Flex™. Ask about availability separately and do not assume it is included with filtration.
Which covers are offered?
The UK page offers a rounded wooden top edge with wooden lid, or an insulated leather cover with a rounded polypropylene edge instead of wood. Both have a surcharge. The source confirms insulated leather-cover compatibility across the models; record the exact choice in the order.
How should the base and load be calculated?
The support must carry the tub, water, bathers and all equipment. The 2200 model alone has approximately 3,400 litres and a 300 kg empty tub weight before users and accessories. Have the exact configuration validated rather than using another model’s generic load.
Who handles unloading and final positioning?
Confirm UK unloading arrangements before delivery. The UK configurator has no separate driver-unloading option. Plan transfer from the unloading point to the final base separately.
What maintenance instructions and warranty apply?
The TimberIN supplement states a 24-month manufacturer warranty from receipt, subject to the full conditions. Maintenance, water treatment and winterisation must follow the manuals for the actual shell, heater, filter and other equipment ordered.
Dear TimberIN Team,
Many thanks to the whole team at TimberIN. We are really pleased with our wood burning hot tub. The delivery was on time and efficient, although I would stress to people taking delivery to ensure you have lots of friends to help move it and/or equipment on hand if it needs to go over a fence. We were 9 people in the end who manoeuvred the hot tub into position through a very tight gate hole and it was no easy job.
We had the tub up and running within hours and have been surprised how often we’re using it even after the initial honeymoon period.
The quality and craftsmanship are great and unlike other more conventional ‘plastic’ hot tubs we saw it really does look great. So far all members and ages of the family have enjoyed it, from our nephews splashing around over Christmas, to Grandma relaxing under the stars with a drink on hand in the ‘bar’.
We’re looking forward to many years of fun use to come!
Tom and Family
Review for Haven’t found what you need? Design your own polypropylene hot tub!
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