Table of content:

1. Outdoor Whirlpools related – general questions;

2. Outdoor Saunas related questions;

3. Transport related questions.

1. Outdoor Whirlpools related – general questions:

Do you offer models for self-assembly?

All wooden hot tubs (without inner liners) can be delivered flat packed (for self-assembly). Polypropylene and fiberglass models can only be delivered fully assembled. Flat-packed models are ideal for difficult of access locations, i.e. narrow roads, narrow pathways leading to the garden.

What is the difference between wooden models and models with liners?

Wooden hot tub models are all natural. Wood is a natural material and it requires maintenance. It tends to expand or shrink due to humidity. Leakage may be expected during the first days of utilisation.

“Polypropylene” and “Fiberglass” models have polypropylene or fiberglass inner liners that prevent leaks and require less maintenance. These models are highly customizable and can be equipped with various SPA accessories.

What kind of wood should I choose?

In a nutshell, we offer 5 wood types, each with different options:

Siberian Spruce is the most affordable option. It has a light shade and may have visible knots. It is a sturdy wood and with proper maintenance will last for years to come.

Siberian Larch is a great choice for those places where wood is highly exposed to various insects. Larch is much more resistant to insects and decay compared to spruce. It has a light shade. Larchwood is quite heavy.

Thermo wood has undergone high-temperature treatment. During this process, the pores of the wood close up, therefore it does not absorb moisture anymore, and resin evaporates. This type of wood is extremely resistant to decay, it will not rot or warp if exposed to humidity. It has a dark shade and is the lightest weight wise.

Siberian Oak is a luxury choice; however, it can absorb a lot of water thus it tends to shrink or expand. Oak requires much more maintenance.

Red cedar is considered one of the most sustainable building materials. A red cedar hot tub has a red tint. Red cedar has very low shrinkage and is free of pitch and resin.

For a detailed guide, visit our blog.

How should the exterior wooden parts be maintained?

We recommend oiling all exterior wooden parts (stairs, wooden panels, wooden lid etc.) twice a year, ideally before and after winter. We recommend using linseed oil, however other solutions for wood maintenance are also acceptable. The exterior wooden panels can be painted or stained.

What diameter should I choose?

Fiberglass models are available in one size – 1800mm internal diameter, which accommodates 6-8 people.

The diameter of wooden and polypropylene models ranges from 1600mm to 2200mm.

diameter-of-hot-tub TimberIN FREQUENTLY ASKED QUESTIONS

What is the difference between internal and external heaters?

The main difference is that an exterior heater allows for more space inside the hot tub. External heaters can also be placed further away from the hot tub. Internal heaters have an advantage in terms of heat loss: since the unit is submerged in water, heat loss is minimal.

What is the ideal water temperature?

The recommended temperature is 38˚C, but, of course, it depends on the preference of the bathers. Bathers with cardiovascular conditions should be cautious and should avoid bathing in very hot water.

How long does it take for water to heat?

There is no clear-cut answer, as the heating time is influenced by a plethora of factors, such as size and insulation of the hot tub, starting water temperature, outside temperature, the power of heater etc.

During the warmer months, a 1800mm hot tub will heat to the recommended 38˚C mark in ~2-2,5 hours.

I plan on using chemicals. What kind of heater should I use?

By default, our heaters are made from 430-grade stainless steel. If chlorine, bromide, saltwater or other chemicals will be used, the heater steel grade must be upgraded to 316-grade stainless steel.

Are there chemical-free water care options?

Yes. One can use a sand filter together with a UVC lamp to remove small dirt particles and bacteria from the water at the same time. Herbal and salt- or mineral-based water care options are also available on the market.

How often should I change the water?

If no filters or chemicals are used, the water should be changed at least twice a week, depending on use. Filters and chemical water care help to keep the water in good condition for longer periods of time.

How can I fill the hot tub?

One can fill a hot tub by simply using a garden hose and lowering it into the hot tub over the edge. Upon request, a stainless steel connection/water inlet with a ball valve can be installed in the side of the hot tub.

How can I empty the hot tub?

Every hot tub has a water drain installed, but they vary in shape and functionality. Fiberglass models with an integrated heater have an external water tap installed underneath the heater. Fiberglass models with different heaters, polypropylene models and wooden models by default are equipped with a syphon with a plug. The drain outlet can be upgraded to an external water tap. More info on drain options on our blog.

I already have a heater, can I purchase a hot tub without one?

Sure, all models are also available without a heater. Please email us with your exact selection and we will calculate the final price without the heater.

How can I keep the water warm for longer?

Invest in the insulation of walls, bottom and lid. After bathing, make sure to cover the hot tub, to slow down heat loss.

If I order SPA equipment, were can I hide the pumps?

We provide a wooden box for covering the electrical equipment. Fiberglass models have the pumps hidden between the fiberglass liner and the external wood decoration. Sand filter always requires a big wooden box (ca. 0.8 x 0.8 x 0.8 m) to be covered.

Do I need professional assistance for connecting electrical equipment?

Massage pumps, filters and LED lights come with standard European type plugs. They are ready to use as soon as they are plugged into electrical sockets.

Electric heaters, on the other hand, can only be installed by certified electricians. We offer the choice of single-phase 220V or three-phase 230V or 380V electrical connections. The electric heating system is equipped with a fuse box. Upon receiving the hot tub, the black connection cable trailing from the fuse box must be hard-wired to a power source by a certified electrician.

What is the power consumption of an electric heater?

Power consumption can be calculated by multiply heating time and power of the electric heater: h x (kW) = kWh. For example, if a 6kW electric heater was running for 2,5 hours, it would consume 15kWh.

Can I use my hot tub in winter?

Certainly, your hot tub can be used all year round! It all boils down to proper maintenance. Please follow our winter care guide. An additional heater is available for frost prevention. 

Should I prepare a foundation for my hot tub?

No special foundation is needed but the ground below should be flat to avoid any deformations. Please click here to find more information.

How much does a hot tub weigh?

The weight varies depending on the model. Fiberglass hot tubs are the lightest; Wellness models weigh ca. 150 kg; Ofuro models – ca. 100 kg. Polypropylene models come in various sizes, thus their weight ranges from ca. 180 kg to 280 kg. Rectangular polypropylene models are heavier and can weigh anywhere from ca. 250 kg to 400 kg. Wooden models weigh from ca. 250 kg to 400 kg, based on their diameter and wood type.

What is the lifespan of a hot tub?

If proper maintenance is ensured, minimum 10 years. Fiberglass and polypropylene models are more durable than wooden models, which require more care and attention.

What is the difference between air bubble massage and hydromassage?

The air bubble massage system comprises 12 jets, which generate a gentler massage effect. Available for all hot tub models.

The hydromassage system comprises 6 chromed jets, which generate a strong massage effect. Hydromassage is not available for wooden models.

What is the volume of a fiberglass model?

Fiberglass models with a raised child seat are about 1200 litres. Fiberglass models without a raised seat are about 1260 litres.

How is the external heater connected?

Two stainless steel pipes (Ø50mm) are installed in the side of the hot tub. The external heater is connected to these pipes through two 1-meter length heat resistant hoses. The hoses are secured with clamps on each end of the hose. It is crucial to make sure that the heater hoses are as straight as possible. The lower hoses must be parallel to the ground, it cannot be at an angle.

How can I regulate the water temperature?

The electric heater has a built-in thermostat which can be set to the desired temperature and it will keep that temperature until turned off. The water temperature when using a wood-burning heater should be regulated by measuring it with a thermometer and pouring in cold water if needed.

What is the best firewood for my wood burning heater?

Dry, dense, calorie-rich wood, such as alder, oak, maple. You can also use biomass (fuel briquettes). Coal is strictly prohibited, as it can damage the heater.

Do the prices listed on the website include taxes?

Yes, VAT tax is already included. Some products already include the shipping costs. Saunas do not include the shipping costs since the delivery address, type of sauna (pre-assembled or flat-packed) and size of a sauna should be known beforehand.

Can the product be purchase VAT excluded?

There are 2 possibilities to exclude the VAT tax. (1) you should be purchasing through a company with a valid VAT code (you can verify the VAT code here: ( ); (2) the delivery address should be outside the EU (example: Norway, Switzerland).

What is the lead (production and delivery) time?

The lead time always depends on the period of the year. In winter, the lead time is about 3-4 weeks; in summer: 5 – 6 weeks.

What are the payment conditions and methods?

We know that it is hard to trust a foreign company these days, therefore, we ask 50 % of advance payment to start the production. Once your product is finished, we send the detailed pictures of your order with your order sheet attached. Once you received the pictures and confirmed, we ask to pay the remaining amount. Once we received the remaining amount, we would organize the shipping to your provided address.

We accept all major payment methods: Direct bank transfer; Paypal, Credit or Debit cards.

Please note that there are extra taxes (ca. 2 %) when paying via Paypal, Credit or Debit cards. Bank transfers are free of charge.

What is the procedure of the purchase?

We always advise using our website to design your own model. Each model has its own additional parts that can be selected beforehand. Please note that each order requires an order form which must be filled on our website after the selection of a certain model. Once we received your request, we will add delivery costs (if any) and prepare the purchase documents. You will receive the contract and the invoice ONLY by the email. Once the advanced payment is received, the production is started. As soon as the product is finished and verified, the pictures are sent to the customer. After the balance payment is made, the product is shipped to the requested address.

Where can I get more information about the products?

Please visit our blog, there are plenty of articles and answers. If you would still have questions, please contact us.

Should the hot tub be drained after each bathe in the winter time?

As a rule, yes, the water should be drained from the hot tub and all its pipes after each bathe in the winter time. However, it depends on some factors:

  1. Water can be left inside if the temperature would not drop noticeably below zero (-5 oC or similar).
  2. Some salts may be added into the water to prevent water freezing;
  3. If your tub is electric, you can leave it working and use the thermostat to adjust the temperature to the minimum value of 5 oC. This wouldn’t let the water to freeze and the electricity consumption would not be high.
  4. We also offer “hot tub water freeze prevention heater”, please click here. It is very simple, it just needs to be immersed into the water and plugged into the socket. It wouldn’t let water to freeze.

What electric heater do we offer? Why is it so expensive? Can it heat water alone or are they only a supplement to the wood-fired stove? Where is the electric heater placed in relation to the hot tub?

Well, we offer quality Swedish electric heaters that can heat the water alone. It means you don‘t need an additional wood-fired stove. It is expensive since we install and get ready all the electric wires and safety fuses. It has the thermostat so you can adjust the water`s temperature from ~5 to 40 oC. The electric heater is placed in the nice looking wooden box next to the tub`s wall. The client can send the sketch with the exact position or we will install it randomly.

How many electric wires are there if I order a complete electric hot tub with all the massage systems including an electric heater; an air bubble massage system; a hydro massage system, a filtration system and a few LED lights.

There are 2 possible options:

  1. If the electric heater is ordered, we install the electric fuse box therefore the client would have just 1 main wire coming out of the tub. The clinet should install just the end electic plug for the socket.
  2. If the electric heater is not ordered, we do not install the fuse box, therefore, each electric unit would have its own wire. However, 2 or 3 LED lamps can have only 1 plug.

2. Outdoor Saunas related questions:

Can a sauna be delivered flat-packed for self-assembly?

Certainly. Most sauna models are available unassembled as well. Flat-packed saunas are ideal for difficult of access location, plus shipping costs are usually lower.

Which heater type heats the sauna faster: electric or wood-burning?

The heating time does not differ much, just the preparation process is different: electric heater starts heating with a push of a button whereas it takes time to start a fire and to clean (sweep up the ash) the wood burning heater afterward.

What is the best temperature for a sauna?

Depends on individual preference, but in regard to safety, it is recommended to keep the temperature under 90˚C, according to the Finnish Sauna Society (especially for people with heart conditions). Higher temperatures are also possible; however, it is important to know your limits and not stay in the sauna for too long. Sauna-goers should be well-hydrated before, during and after spending time in the sauna.

How many people can fit inside a sauna?

The sauna room usually has benches on both sides. It can be presumed that 1 meter of the bench sits one person, in turn, 1 meter of the sauna room sits two people (on both sides). A 2-meter sauna would accommodate 4 people, a 3-meter sauna – 6 people and so on.

If you plan to lay on the sauna benches, the sauna bench should be about 2 meters long for one person to lay comfortability.

Do I need to oil the exterior of the sauna?

We recommend oiling all exterior parts twice a year, ideally before and after winter. If you order an assembled sauna, it will be delivered already oiled. If you order a flat-packed sauna, the wooden parts will be untreated and will need to be oiled after the sauna is assembled.

Can I paint or stain the exterior of the sauna?

Certainly. All exterior parts can be painted or stained with products designed for outdoor use.

What sort of foundation should I prepare for the sauna?

Basically, the length and width of the foundation must meet the size of the sauna. The foundation itself should be flat to avoid possible deformations. Upon the request, we always send the required base drawing of the sauna.

What is the weight of the sauna?

The weight depends on the wood type and length of the sauna. Thermo wood is the lightest, larch is the heaviest. To give a rough estimate, a 2-meter sauna will weigh under 1 tonne, a 3-meter sauna – about 1,5 tonnes, a 4-meter sauna – about 2 tonnes, a 5-meter sauna – about 2,5 tonnes.

Which wood type is the best for a humid climate?

Thermo wood is hands down the best wood type for humid climates, as it does not rot or warp. Spruce is used for the preparation of thermo wood. Thermo wood is light and has a brown color. The water capillaries are burned, therefore, the possibility of wood deformation is reduced. For more information, please click here.

Will the roof of the sauna withstand heavy snowfall?

For mountainous areas and regions with heavy snowfall, we recommend considering the Igloo model. Its sloped roof is designed to withstand snow build-up.

Will sauna stones be included?

Yes, the required amount of sauna stones is included with every wood-burning or electric heater.

What is the power of the electric heater?

The standard electric heater is Harvia Vega, 6kW. This model is also available in 8kW for larger saunas. We are not limited only to this type of heater. You could contact us with your preferred heater and we will make sure to install it.

Is it possible to get a remote controlled electric heater?

Yes. For a quote, please contact us by email. When possible, please specify which Harvia heater model is of interest to you.

How do I generate steam in the sauna?

Steam is generated by pouring water on the sauna stones. You can simply take a wooden bucket, fill it up with water and place it inside the water. The water should be warm, otherwise, it will cool off the stones. Scoop some water from the bucket with a ladle and pour it one the sauna stones. Use this method for electric and wood-burning heaters. We also offer an alternative solution for wood-burning heaters – a stainless steel water tank that attaches to the chimney. The heat from the chimney warms the water, thus it will not cool of the sauna stones.

How to avoid wood shrinkage?

Shrinking wood may deform and cracks may show up, thus it is of key importance to try and avoid this. If the interior of the sauna seems very dry, leave a couple of buckets filled with water inside. As the water evaporates, the wood will absorb it. It is also recommended to water the exterior of the sauna from time to time as well, which can be done by pouring a couple of buckets of water on the exterior walls.

3. Transport related questions:

What is the delivery price of a certain product? Were can we deliver our products?

The delivery price depends on the model. Please see below. We offer EU-wide deliveries including Switzerland, Norway and other.

  1. Outdoor whirlpools: we often do some special offers, therefore, one can find free shipping under a certain outdoor whirlpool model.
  2. Outdoor saunas: the delivery price is not included and always applied as extra on top. In order to tell the delivery price of an outdoor sauna, we must know the following: (1) the model; (2) the size; (3) pre-assembled or flat packed; (4) The delivery address.
  3. Heaters for outdoor whirlpools: the delivery price is included expect for non-EU countries such as Norway or Switzerland.
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