Rexener Polar with Energy Saving Kit (produced from November 2022)


Handmade in Finland, Rexener Polar is a high-quality premium hot tub with a wooden frame and fibreglass pool. Electricity consumption problem on Hot Tub heating is solved – The Rexener Bioheater is the solution. Read details about the Bioheater here. Compared to the traditional Finnish way of heating a Hot Tub (wood stove), heating with Bioheater takes considerably less time. Also, the water temperature won’t over-heat and can be timed and monitored through your phone. A built-in filter and pool chemicals ensure the water stays clean for a long time. A jet system brings a touch of luxury. Optional pool colours: Gabro Black or Arctic White.

Now also available as an updated version with a smaller sized, separate heater box and in-build technology for more flexible installation. 

Up to 10m flexible installation distance between the Hot Tub and the heater. 

This gives additional possibilities: for example moving the heater technical box out-of-sight to a separate place from the Hot Tub or integrating the hot tub into the terrace / patio materials. Additionally, this solution enables easier maintenance. 


This hot tub has it all. A thermostat-controlled Rexener Bioheater, water circulation pump, mass filter, energy saving kit, lights and a jet system with a eight nozzles.

Choose fibreglass pool colour:

  • Arctic White Day
  • Gabro Black Night

Package containsSquare white fibreglass pool, wild spruce frame, energy saving kit, Rexener Bioheater + chimney with barrel hat + fuel tank, polyurethane insulation, mass filter kit (incl. water circulation pump), LED lights, protective case (for water heater and mass filter kit), jet system.

Energy Saving Kit

The fastest and most energy efficient way of heating your hot tub or pool. Very easy to use. Suits any hot tub in the market. Save even more by using our energy saving kit. Example: Use the energy saving kit to time the water circulation pump and Bioheater to run 6 times per day, for 1 hour at a time and save 2/3rds of already low energy costs.

Energy saving kit available as a spare part for older models.

Calculate your savings

In stock for immediate delivery.

SKU: N/A Category:

6 990,00  / pcs

inc. 24% VAT

* VAT will be calculated at checkout based on customer's shipping country


  HOME DELIVERY - Postnord delivers all products to your doorstep. The courier will call you before arriving with your shipment.

  SAME-DAY DELIVERY Orders that are placed on weekdays before 1 pm are generally shipped on the same day.

  QUICK DELIVERIES Products from the stock are usually delivered to the customer within 4-14 workdays from the order. Fast and reliable.


Rexener Polar



Low operating costs of the Rexener Polar hot tub

The Rexener Polar hot tub benefits from low operating costs. Its economical pool has a relatively low water volume of ca. 1,300–1,500 litres. Thanks to its advanced design, the pool still feels spacious.

The Rexener PR200 water heater can heat the water from +7 degrees to +38 degrees in less than two hours. This means the heating cost is as low as 4 euros! When the Rexener PR200 water heater is running, its fuel consumption is 2L/hour. However, its thermostat will turn the heater off when the water reaches the right temperature. When the water temperature falls by 2–4 degrees, the heater will turn itself back on.


Rexener Polar

Rexener Polar

Fibreglass – the hygienic choice

Fibreglass is durable, robust and easy to clean. Regular washing and drying can help maintain your hot tub’s hygiene. Fibreglass is an excellent material for Northern weather conditions. It is a long-lasting and durable material. Our fibreglass pools are made in Finland and come with a 5-year warranty.

Quick heating – no smoke

The Rexener Polar hot tub is also ideal for detached housing estates, as the heater does not generate smoke that might disturb your neighbours. The Rexener Bioheater is particularly efficient, which means that using it generates only minimal harmful emissions. What comes out of the chimney is mostly carbon dioxide. The hot tub heats up very quickly compared to a wood fireplace. Heating speed is influenced by the outside temperature, and whether or not the pool is covered.

Arctic luxury – inspired by Northern nature

Rexener hot tubs take their colours from the building materials of the idyllic Northern landspace – white snow and the black granite stone of the North, Gabro. Rexener hot tubs have an outer shell that is made of lichen grey Northern wild spruce. It is treated with tinted wood oil which contains little bit wax. Wood oil reduces cracking, protects against moisture and grime.

Enjoy a calm bath

The pool’s corners have comfortable, slanted backrests, and there’s plenty of foot space in the middle. It is also fairly deep in the midsection, which makes the pool feel very large. The Rexener Polar hot tub has a step that makes it easy to climb in and out of the pool, and can also be a children’s seat when necessary.

Easy-to-use drain mechanism – exclusively in Rexener Polar hot tubs

Our products are in active development and as a result, how easy it is to drain the pool is something we have taken into account. All the water can be drained from the bottom of the pool, without having to drain it by hand. The fireplace side of the pool has a drainage valve from which the water drains. You can also attach a 25 mm hose to better direct the water flow.

Rexener Bioheater – a warm hot tub at the press of a button

No need to chop firewood! Anybody can use the Rexener Bioheater: just press the button, and the heater does the rest. It takes considerably less time to heat the water than when heating with wood. The Rexener Bioheater keeps the water temperature constant. No more water that is too cold or too hot in the pool! Adjust the temperature on your own!

UV-light helps keep the pool water clean

– Water circulates from the pool through the circulation pump to the mass filter, and from there through the UVC device to the Rexener Bioheater heater, from where the warm water returns to the pool.
– Water intakes in the pool have grilles so the biggest debris can’t get into the water circulation system
– The circulation pump is equipped with a pre-filter that catches larger debris.
– Inside the mass filter there is filter fiber, which is also called filter balls. These effectively purify the water and bind small dirt particles, such as skin and other dirt that comes off when bathing in the pool.
– The UVC device has a UV light inside that brightens and purifies the water.
– UV light also prevents the formation of algae and reduces potential pathogens in the water.
– UV light reduces the need for chemical disinfection to a minimum and can also reduce the smell of chlorine, for example

High-quality fibreglass pool with a 5-year warranty

Our hot tub kits come with a 3-year warranty, and our fibreglass pools are guaranteed for up to 10 years

Package contains

Package contains

  • Square white (Arctic White) or dark grey (Gabro Black) fibreglass pool
  • Wild spruce frame, treated to a lichen grey with wood oil.
  • Rexener Bioheater +  chimney with hood + fuel tank
  • Polyurethane insulation
  • Mass filter kit (incl. water circulation pump)
  • Pre-installed tubes and bushings (hoses, bushings, tighteners, etc.)
  • LED lights
  • Energy Saving Kit
  • Jet system
  • Thermally insulated protective case (for water heater and mass filter kit) 87 x 96 x 157 cm (depth x height x width)
  • UV-light 18W




Rexener pool products have a three-year warranty. The warranty period for glass fibre pool elements is five years.

Glass fibre pool element 5-year warranty.

Rexener Bioheater – 3-year warranty

Support frame, wooden – 3-year warranty

Pool lights and jet system –  3-year warranty

* the additional warranty is granted to customers who have registered for the warranty.

For the registration of the warranty and detailed instructions, please go to



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Technical information

Volume: 1300-1500 litres

Persons: max. 8

Dry weight: approx. 200kg

Outer dimensions: 190 x 190 x 110 cm (width x depth x height)

Inner dimensions: 223 cm

Leg space diameter: 77 cm

Heating type: Rexener Bioheater 

Water heater weight 43 kg

Power of the water heater: 18,5 kW

Water heater consumption: 2 L/h

Fuel: Biodiesel, diesel or red diesel

Power consumption: 80W

Water heater dimensions: 38 × 58 × 86 cm (width x depth x height)

Thermostat: 0-40ºC

Water drainage: There is a drainage plug at the bottom to make draining the pool easy. On the right side of the pool, viewed from the stairs, there is an exhaust valve from which the water drains away. If you wish, you can also connect a 30 mm water hose to divert the water. It is possible to purchase an optional drain shark for this.

 UV-light: Yes, 18W

3 year warranty
100% Finnish wood
Works with biodiesel

Rexener Polar

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Our pool products and accessories are very functional. We have everything you need for an incomparable bath!

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With pool chemicals, you keep your hot tub clean all year round!

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Pool water hygiene

BIOCOOL disinfect my pool 1l

39,95  / pcs
24,95  / pcs
19,95  / pcs

Other hot tub accessories

Tablet dispenser

10,00  / pcs
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