READY-TO-USE HOT TUB WITH A REXENER PR200 WATER HEATER 

We haven’t actually reinvented the bike but made a better version of the old one! The Rexener hot tub is much easier and more comfortable to use than a regular hot tub. Now you can bathe every night, because the Rexener hot-tub is warm 24 hours a day, 7 days a week if you want – and the water is always crystal clear.

The Rexener Unnukka hot tub is made of the best components on the market; we use Europe’s largest hot tub suppliers, Kirami’s, hot tub. This, combined with the high-quality and high-efficiency Rexener PR200 heater, guarantees you an unparalleled and effortless bathing pleasure.

The Rexener hot tub heats up with a biodiesel-powered Rexener PR200 water heater, it gets bath-ready in couple of hours – including an hour of water filling. Compared to many traditional wood-burning stoves, it is fast as a lightning. You decide the temperature that is suitable for bathing and Rexener makes sure that the water temperature stays there – no more ice cold or burning hot tub!

Depending on what you choose, the Rexener water heater uses biodiesel, diesel or “red diesel”. You can also use the Rexener PR200 in a detached house area, as there will be no visible smoke from the heater to disturb the neighbours. The good efficiency of the Rexener PR200 heater means that the heater does not cause harmful exhaust emissions. Practically only carbon dioxide comes out of the exhaust. The heater requires very little electricity.

Rexener Unnukka is designed for 4-6 people at a time. The volume of the hot tub is 1540 liters. Rexener Unnukka is a completely ready-to-use package. By ordering it together with the installation service, you don’t have to worry about anything else than finding a perfect spot for the hot tub.

Note! The cover and stairs and are sold separately.

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  • An easier, faster and more comfortable alternative to a wood-fired hot-tub
  • Low consumption. Heat maintenance easy and inexpensive.
  • Precise thermostat control 0-45ºC
  • Works with biodiesel, diesel or fuel oil
  • Fast water heating
  • No smoke nuisance
  • Easy to install
  • LED-light included

BASIC PACKAGE CONTAINS

PR200 HEATER

CHIMNEY

FUEL TANK

MASS FILTER KIT
Includes both circulating water pump and filter

PROTECTIVE CASE
Protective case that contains the heater, fuel tank and mass filter kit.

CONFIRMING CALL
We will call you before the goods are delivered. We agree on a delivery date and make sure you have all the necessary parts for the installation.

TECHNICAL SUPPORT
You can get service from us in English, Swedish, and Finnish.

SERVICE
Our professional customer service covers the entire country.

2 YEAR WARRANTY
We provide warranty service free of charge at your place.

OPTIONAL INSTALLATION
Turnkey installation service  throughout the country

Quick and even heating

“Years ago, we had the intention of getting a hot tub to our cabin on the beach. However, we saw with our friends what a hard work it was to heat the tub with wood. It is a lot of work and yet the water is still easily either hot or cold. This heater solved the problem. We got it installed and it was easy to use. The device uses surprisingly little diesel. The water taken straight from the well warms up to the 39 ° C we want in just a couple of hours and stays there as promised.”

Immediatly ready hot-tub tempts to bath

We have had a heater for about a year now. I went to find out about Airrex infrared heaters and at the same time I also found the Rexener PR200. I do such an irregular job that heating with trees was annoying. Just when I got the hot-tub warm, I had to go to work.

I keep the hot-tub warm all the time now. This winter, I kept it at about 30 degrees all the time. The fact that the hot-tub is all the time immediately ready, tempts you to take a bath. Heats our hot-tub to bath ready temperature really fast.

We get pretty cold water from the well, but it also heats up quickly in a couple of hours. Nothing bad to say. We have been really pleased and recommend it to everyone.

PHOTOGALLERY

Frequently asked questions

What to consider when choosing a spot for the hot-tub?
  • The hot tub should be placed on a flat surface that can support the full weight of the pool. (approx. 2000kg)
  • The barrel can be primed with crushed stone or alternatively the base can be cast in concrete. Can also be installed or embedded in the terrace.
  • When choosing a place for the hot tub, also consider the issues related to draining the water and, if necessary, the water can be led to the side with a hose.
  • The drain valve is located on the opposite side of the heater from the barrel and fits a 38mm inner hose.
How do I keep the pool clean?
  • Keep the pool covered with a deck (sold separately) and otherwise take care of cleanliness and hygiene by washing and drying the pool regularly. Our selection includes an Insulation Cover and a protective cover.
  • By using pool chemicals, you can extend the water change interval.
    When using pool chemicals, the pH value must remain within the given limits, i.e. 7.0-7.6
  • If you are not sure what pool chemicals you need, we have handy starter kits. Chlorine-based starter kit or oxygen-based starter kit.
How much does the heater consume?

EXAMPLE OF CONSUMPTION

Amount of water: 1500L

Heating time (+7 -> + 38C) about 2 hours, of which about 1 hour of water filling

Heating costs approx. 4 €

When the Rexener PR200 is running, it consumes 2L per hour. However, the thermostat will turn off the burner when the desired temperature is reached. The burner goes back on when the temperature drops 2-4 degrees. In this way, consumption can be minimized.

If you wish, you can even lower the temperature to +10 degrees if you do not use the hot tub / swimming pool continuously. This saves energy.

Can I use the heater with seawater?

Yes you can. The PR200 also works with seawater.

Can I use biofuel?

Yes you can! Rexener works well with biodiesel.

What if something breaks?

Our servicecar covers the whole UK. In addition to our professional installer, the car is constantly equipped with a comprehensive range of spare parts. All Rexener PR200 heater spare parts can be found in our warehouse in Finland.

Do I need to move the heater indoors in the winter?

It is not necessary to move the heater indoors in winter, especially if it is in use. If the heater is drained of water, it can also be stored outdoors.  Of course, it is always better to keep the device in a warm, sheltered place when not in use.

Does the heater have to be drained in winter (water / fuel)?

Water must not freeze inside the heater. If you wish, you can keep the water so warm that it does not freeze, so you do not need to drain the appliance. If the heater is not used (or the heat is not maintained), the unit must be emptied before frost.

The fuel remains in a weatherproof tank, so you don’t need to empty the tank even in frost. It is always advisable to change the fuel if the fuel stops for a long time.

In the frost, make sure that the heater uses winter grade fuel.

TECHNICAL INFORMATION / HEATER

WEIGHT43 kg
DIMENSIONS38 × 58 × 86 cm
POWER

20kW / hr

CONSUMPTION

2,0 L/h (Note: thanks to the thermostat, actual consumption is much lower)

FUEL

Biodiesel, diesel or fuel oil

THERMOSTAT

 0-45ºC

POWER CONSUMPTION

80W (230V, 50Hz)

NOISE LEVEL

48 dB

CONTROL

Digital touch panel

TANK

23 L external tank

WATER CONNECTION38 – 75 mm (38 mm inner diameter)

TECHNICAL INFORMATION / HOT-TUB 

OUTER  DIAMETER 170 cm 
VOLUME1420 L / 4-6 persons
DRY WEIGHT157 kg
EXTERIOR COLOURST-CB Coal Black
INNER COLOURLight grey
POOL SIZEDepth 90 cm, height 107 cm 
TOTAL LENGTH236 cm

PROTECTIVE CASE DIMENSIONS

97,5 cm (P) x 1,295 cm (L) x 112,9 cm (K)

 

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ADDITIONAL EQUIPMENT

175,00 £ / pcs
Out of stock
1 760,00 £2 040,00 £ / pcs