Tiny S Dual Thermowood, LightGray hot tub
- For 1-2 persons
- Heat & cool functionality
- Approx. 8°C change/hour
- Tailored to your needs
- Support with planning and installation
- A smooth process to your complete setup
Product description
A compact wellness tub for hot soaks or refreshing cold plunges. The integrated dual heat pump allows you to heat or cool the water with precision, making Tiny perfect for year-round relaxation in smaller outdoor spaces.
Key facts - Wellness tub
For warm relaxation or cold immersion
The dual heat pump system allows the water to be heated or cooled as needed, supporting both warm bathing and refreshing cold immersion.
Separate external heater for more space and safety
The heater is installed outside the tub, keeping bathers comfortable and maximizing space while ensuring easy maintenance and safe operation.

Easy to clean and maintain
The smooth plastic inner tub is hygienic, low-maintenance, and ready for regular use — no complex upkeep needed.
Finnish design since 2001
Designed and built in Finland since 2001, our tubs reflect Nordic expertise and dependable craftsmanship made for lasting outdoor use.

About
Tiny Small with Dual heat pump offers flexible wellness in a compact format. Designed for one to two bathers, it fits easily into smaller gardens and terraces while delivering full hot and cold functionality. The integrated air-source Dual heat pump system combines heating and cooling in one complete unit. It includes circulation, filtration, ozone purification and a control panel, allowing you to switch between warm relaxation and refreshing cold immersion. The system changes water temperature by approximately 8°C per hour depending on conditions. The exterior is crafted from durable thermo-treated pine, chosen for its stability and long service life in Nordic climates. Inside, the LightGray liner features a smooth, velvety surface that is easy to maintain and pleasant against the skin. An insulated safety cover is included to maintain temperature, protect the interior from UV exposure and keep debris out. Standardized according to EN 17125, it enhances safety. Wooden steps are delivered pre-assembled for convenient access. Optional LED lighting adds a warm visual element to your bathing experience. The factory-installed lights highlight the tub’s colors and create a calm atmosphere as daylight fades. Manufactured in Finland and built on over 25 years of Nordic hot tub expertise developed by Kirami — part of the Harvia team since 2021 — Tiny S Dual offers reliable year-round wellness in a small footprint.
Specifications
- SKU
- KIR-4032
- Exterior surface material
- Thermo‑pine
- Tub water volume
- 615 L
- Tub outer diameter
- 170 cm
- Tub power output
- 5 kW
- GTIN
- 6430036757564
Size & Weight
Product
- Height
- 98 cm
- Width
- 170 cm
- Depth
- 210 cm
- Net weight
- 92 kg
Package
- Height
- 113 cm
- Width
- 80 cm
- Depth
- 171 cm
- Gross weight
- 110 kg
Files
Everything included for the full sauna experience
Exterior
- Heat-treated pine panels with a brown tint Outlet valve kit
Interior
- Plastic benches, Grey
Heating Equipment
- Electric heater/cooler unit
Accessories
- Assembly instructions

Our materials
Find answers to the most common questions
Cold plunge benefits
Cold water awakens both body and mind
Alternating heat and cold activates your body’s natural heat production, helping you burn energy and support a healthy metabolism. The shift between warm and cold also keeps your system active and responsive, supporting overall energy balance.
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