In-ground model

TimberIN Nordic™ InGround Comfort – Sunken & In-Ground Hot Tub System

From: £1,662

TimberIN Nordic™ InGround Comfort – Sunken & In-Ground Hot Tub System. Nordic InGround Comfort is a family of round, Ofuro and square hot-tub shells designed for integration into a planned terrace or surround. Each named model has its own dimensions, seating form, water volume and heater position; it is not one universal container that can be reshaped on site. Choose the exact technical-sheet variant before structural work begins, then design support, drainage, ventilation and removable service access around that confirmed shell. Seven documented terrace shells range from a 1–2-person, 1,000-litre oval to a 6–14-person, 1,800-litre square, with round 1,200–1,650-litre models between. Internal, external and no-heater variants are live, plus 6–18 kW electric support, covers, insulation, massage, filtration, LEDs, smart control, colour and drainage. The selected TERRACE drawing—not a nominal dropdown size—must define the recess.

Product Description

Purpose-built shells for terraces and recessed installations · Made-to-order outdoor hot tub

TimberIN Nordic™ InGround Comfort – Sunken & In-Ground Hot Tub System: an in-ground model family that starts with the construction drawing

The visible rim is only a small part of the installation

A recessed hot tub can create a calm, integrated terrace, but the finished appearance depends on substantial work below and around the shell. Round models give a communal seating arrangement, the Ofuro format is more upright and compact, and the square model follows a rectilinear plan. Heater location differs across the range and may be internal, integrated or external. Those distinctions affect not only bathing space but also the supporting structure, pipe routes, ventilation, firebox access and the points that must remain reachable after the surrounding finish is installed.

TERRACE1 to TERRACE7: seven fixed shells, not one variable tub

InGround Comfort is a family of finished shells intended for a separately engineered recess or terrace. The technical sheet is unusually specific: each TERRACE number has its own form, water volume, occupancy, heater position and outside dimensions. A change from TERRACE2 to TERRACE3 is not a cosmetic bench option; it is a different shell. Groundworks, structure, drainage and removable service access are outside the product and must be designed around the selected drawing.

TERRACE1 Round internal heater; 2–3 people; 1,200 L; 1,550/1,750 mm inside/outside; 970 mm outer height
TERRACE2 Round Classic external heater; 6–8 people; 1,650 L; 1,800/2,080 mm; 1,110 mm outer height
TERRACE3 Round Wellness external heater; 6–8 people; 1,400 L; 1,800/2,000 mm
TERRACE4 Round Wellness internal heater; 6–8 people; 1,500 L; 1,800/2,000 mm; 850 mm high
TERRACE5 Oval external heater; 1–2 people; 1,000 L; approximately 1,900 × 1,190 × 940 mm
TERRACE6 Round Wellness external heater; 8–12 people; 1,550 L; 2,042/2,240 mm
TERRACE7 Square external heater; 6–14 people; approximately 1,800 L; 2,008 × 2,008 mm inside and 2,200 × 2,200 mm outside

Open the product technical sheet

Choose a TERRACE number before an architect sizes the opening

TERRACE5 is the focused couple’s Ofuro; TERRACE1 is the smallest round shell; TERRACE2 offers deep Classic geometry and the largest 1,800 mm water load; TERRACE3 and 4 compare external versus internal Wellness arrangements; TERRACE6 widens the round format; TERRACE7 gives square social seating. External heaters preserve bathing room and need a side service zone. Internal heaters compact the plan and occupy water space. No-heater variants are for separately engineered systems. The 6–18 kW electric options must be sized against the exact water volume and UK supply.

Decision Choices currently selectable
Inner diameter 1600 mm · 1800 mm · 1900 mm x 1000 mm (Ofuro) · 2000 mm · 2000 x 2000 mm
Model (see technical sheets) #TERRACE1 with snorkel wood burner (316 steel, chemical resistant) · #TERRACE2 with external burner (316 steel, chemical resistant) · #TERRACE3 with external wood burner (316 steel, chemical resistant) · #TERRACE4 with snorkel wood burner (316 steel, chemical resistant) · #TERRACE5 with external wood burner (316 steel, chemical resistant) · #TERRACE6 with external wood burner (316 steel, chemical resistant) · #TERRACE7 with external burner (316 steel, chemical resistant) · No heater (TERRACE2) · No heater (TERRACE3) · No heater (TERRACE5) · No heater (TERRACE6) · No heater (TERRACE7)

The recess must accommodate every selected accessory

An insulated cover, insulation and filtration are valuable, but their boxes, pipework and removal paths cannot be entombed below paving. Hydromassage and air massage add penetrations and pumps; LEDs and smart controls add low-voltage and network requirements. A heater lid or chimney guard reduces contact risk without replacing clearances. A tap and hose adaptor help direct discharge, but a 1,000–1,800-litre drain event must be designed into the landscape. Provide ventilation and removable panels on every equipment side.

Electric heater

  • Power level and connection type. Default 6 kW. Select from the table and inform us separately
  • Power increase to 9 kW or 12 kW
  • Power increase to 15 kW or 18 kW

Advantages: Electric heat offers repeatable thermostat control, no fuel storage and a clean holding routine; 9–18 kW upgrades can shorten recovery when the selected water volume and electrical design justify them.

Type of lid

  • With wooden round edge instead of fiberglass + Wooden lid instead of fiberglass (spruce)
  • Insulated leather lid (recommended)

Advantages: A fitted cover reduces debris and heat loss; an insulated leather cover is normally lighter to handle and more thermally effective than a plain timber lid.

Insulation

  • Wall insulation
  • Bottom insulation

Advantages: Wall and bottom insulation reduce heat loss from the water vessel and are particularly useful for frequent use, exposed sites and electric temperature holding.

SPA

  • Air bubble massage system
  • Hydro massage system
  • Sand filtration system
  • 2 LED
  • 4 LED (Recommended for 180 – 220 cm models)

Advantages: Air massage gives a gentle whole-tub effect, hydromassage provides firmer targeted jets, filtration supports retained-water use and LEDs improve evening visibility and atmosphere.

Smart SPA equipment add-ons (WiFi signal required)

  • Smart app – voice controlled system kit for air massage
  • Smart app – voice controlled system kit for water massage system
  • Smart app – voice controlled system kit for sand filter
  • Smart app – voice controlled system kit for electric heater (enables scheduled control, ON/OFF)

Advantages: App control can schedule electric support and make filtration, air massage or hydromassage easier to prepare before a planned soak, with separate control applied only to the systems selected.

Inside color

  • White (RAL 9001)
  • Blue (RAL 5012)
  • Gray (RAL 7015)
  • Blue Pearl (RAL 7700)
  • Gray Pearl (RAL 7730)
  • Granite (RAL 9001)

Advantages: Liner colour lets the visible bathing shell coordinate with the garden and can make the water appear lighter, deeper or more neutral without changing the tub geometry.

Metal parts

  • Metal fence on the chimney (heat protection)
  • Stainless steel cover on the heater (for internal heater)
  • Ash shovel and rake

Advantages: A chimney guard reduces accidental contact risk, a heater lid controls access around the firebox, and dedicated metal tools make ash handling and routine stove care more orderly.

Water release type

  • Bottom water drain with a stopper (included)
  • External water tap
  • External water tap + Quick adapter for garden hose set (12.5mm & 15mm)

Advantages: An external tap gives better control over discharge, while the quick hose adaptor helps route water away from foundations, neighbours and soft landscaping.

The seven volumes and heater positions cannot share one heating promise

The family spans 1,000–1,800 litres and several heater positions. TimberIN’s general wood-fired guidance of 2–3 hours warm and 4–6 hours cold is therefore context, not a specification. Electric support from 6 to 18 kW changes theoretical heat-up dramatically and may require a much larger supply. Ask for the chosen TERRACE water volume, heater output and estimated losses in writing. Insulate the recess without blocking ventilation, use the cover during warm-up and keep every heater accessible for commissioning.

Design a maintainable installation, not a sealed box

Use the selected model drawing to coordinate the load-bearing structure, clear opening, access hatch, drainage fall and all services. Earthwork, retaining construction, terrace framing, crane position and site waterproofing are normally project responsibilities rather than parts of the tub price. Allow ventilation around equipment and a route for removing heaters, pumps or pipework in the future. Surface water should drain away from the recess, and any leak should be visible and recoverable. The installer must also preserve safe chimney and firebox clearances where wood heating is selected.

Before production: TimberIN products are individually made, so published measurements are approximate. Confirm the selected live variation, final dimensions, included equipment, service requirements, delivery method and any critical tolerances in the accepted written quotation. Photographs may show optional equipment.

Questions about TimberIN Nordic™ InGround Comfort – Sunken & In-Ground Hot Tub System

What inner diameter choices are shown for TimberIN Nordic™ InGround Comfort – Sunken & In-Ground Hot Tub System?

Inner diameter choices currently shown are 1600 mm; 1800 mm; 1900 mm x 1000 mm (Ofuro); 2000 mm; 2000 x 2000 mm. Availability and valid combinations are controlled by the live configurator and confirmed in the final written order.

Does the displayed price include every option for TimberIN Nordic™ InGround Comfort – Sunken & In-Ground Hot Tub System?

Not necessarily. The displayed amount follows the current base or selected configuration. Size, material, heater, equipment, delivery and installation choices can change the total; the basket, quotation or written order is the final commercial record.

What should be confirmed before delivery of TimberIN Nordic™ InGround Comfort – Sunken & In-Ground Hot Tub System?

Choose the normal occupancy and shell size first; nominal capacity is not a comfort guarantee for every body size. Select heater position and fuel after checking usable seating, firebox access, chimney route and any electrical supply. Confirm delivery access, a level load-bearing base, safe filling and drainage, and the intended winter operating routine. Final dimensions, included equipment and site responsibilities should be confirmed before production or dispatch.

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4 reviews for TimberIN Nordic™ InGround Comfort – Sunken & In-Ground Hot Tub System

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Customer Images

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David

5 stars review

(0) (0)
Image #1 from Ryan

Ryan

Hi Albert Not sure I sent you the pic see below it finished! Did you send the trust pilot link for review? Hope you’re well many thanks

(0) (0)
Image #1 from Kim

Kim

Dear Evelina Here are some pictures of our spa during installation. We are very pleased with it. Thank you for a great service and a high quality spa Best regards

(0) (0)
Image #1 from Ryan

Ryan

Hi Albert hope you’re well, something to cheer you up during these weird times, we are nearly finished...

(0) (1)
Image #1 from David
Image #1 from Ryan
Image #1 from Kim
Image #1 from Ryan
1-4 of 4 reviews
  1. 5 stars review

    Image #1 from David
    (0) (0)
  2. Hi Albert Not sure I sent you the pic see below it finished! Did you send the trust pilot link for review? Hope you’re well many thanks

    Image #1 from Ryan
    (0) (0)
  3. Dear Evelina
    Here are some pictures of our spa during installation.
    We are very pleased with it. Thank you for a great service and a high quality spa
    Best regards

    Image #1 from Kim
    (0) (0)
  4. Hi Albert hope you’re well, something to cheer you up during these weird times, we are nearly finished…

    Image #1 from Ryan
    (0) (1)
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Electric heater

Don’t forget to mention the power and the connection type

—Power of the electric stove and the connection type—

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Type of lid

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Insulation

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SPA

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Smart SPA equipment add-ons (WiFi signal required)

Inside color

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Metal parts

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Water release type

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Shipping

Please note that the hot tub would be delivered with an 18 m, 40t truck. Possibility to deliver with a smaller truck (3,5t) in the London area.

Special gift

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