5-Year Heater Warranty
Finlandia FIN-45S
Overview
The Finlandia FIN-45S is a wall-mounted electric sauna heater built for authentic Finnish-style heat in rooms up to 210 cubic feet. Made by Harvia and imported from Finland, this 4.5 kW stove uses pro-grade stainless-steel elements in direct contact with the stones for efficient, penetrating warmth.
- Stainless-steel elements and exterior finish
- Triple-wall construction for safety and lower surface temperatures
- Large rock capacity for optimal heat storage
- 240V single-phase or 208V three-phase; UL and ETL listed
A compatible control is required and sold separately. For 240V/1PH, use the CX170 or F1T control; for 208V/3PH, use the CX170 or F2T control with FX303 contactor. For commercial 24/7 use, pair the CX170 with a 24H7D time clock, or the F2 control with its contactor and 24H7D time clock. Digital controls include a power supply; manual F-2 and F-2T controls require a contactor. The FIN-45 carries a limited lifetime warranty and is fully serviceable.
Key Features
Build & Materials
- Wall-mounted design
- Stainless-steel construction and exterior
Heating & Stones
- Industrial-grade stainless-steel heating elements, serviceable
- Exceptionally large rock capacity
Controls & Electrical
- Available in 240V/1PH and 208V/3PH
- Requires a wall-mounted time/temperature control (sold separately)
- 240V/1PH: CX170 or F1T control
- 208V/3PH: CX170, or F2T control with FX303 contactor
- 24-hour operation: CX170 with 24H7D time clock, or F2 control with FX303 contactor and 24H7D time clock
- F2 and F-2T controls require a contactor
Do your research first
This is a big purchase. We'd rather you get a fair look at the market — compare with these trusted sources before you decide.
About Finlandia
Authentic Finnish heat since 1964
Finlandia Sauna has brought the authentic Finnish sauna experience to North America for over half a century. Finlandia electric heaters are manufactured by Harvia in Finland and engineered for years of safe, reliable, penetrating heat — with industrial stainless-steel elements, generous rock capacity, and triple-wall construction for lower surface temperatures.
Every Detail
Specifications & Details
Specifications
Model: FIN-45S
Kilowatt Rating: 4.5 KW
Cubic Feet
Minimum: 100 CF
Maximum: 210 CF
Weight
Heater Weight: 40 lbs
Shipping Weight with Sauna Stones: 90 lbs
Nominal Amperage
240V, Single Phase: 18.8 Amps
208V, 3-Phase: 12.5 Amps
Recommended Minimum Copper Wire Supply
240V, Single Phase: 10 AWG
208V, 3-Phase: 14 AWG
Dimensions
Width: 16"
Depth: 11"
Height: 24"
What's Included
- Sauna heater
- 45 lbs of Igneous sauna stones
- Installation and operation manual
- Manufacturer's warranty
Sauna Compatibility & Sizing
Designed for sauna rooms from 100–210 cubic feet. Operates on 240V single-phase or 208V three-phase.
The Finlandia FIN-45S suits traditional sauna rooms, including SaunaLife, Dundalk LeisureCraft, and ThermaSol barrel, cube, and cabin saunas — choose the model whose cubic-foot rating matches your room volume. Measure length × width × height of your sauna interior to find the right kW.
Shipping & Warranty
Shipping: Ships free via freight carrier with curbside delivery to the contiguous U.S. Most orders dispatch within a few business days.
Warranty: The FIN-45 carries a limited lifetime warranty and is fully serviceable. Backed by Sauna Co. customer support.
Many heaters require a compatible control unit and sauna stones, sold separately — contact our specialists for the right pairing.
Resources
Documents & Manuals
Heater Installation & Operation Manual
Watch & learn
Installation Guide
Follow along with this step-by-step installation and assembly walkthrough so you know exactly what to expect. Our team is one message away if you need a hand.
to a friend
The Finlandia FIN-45S is a quality heater for my small to mid sauna. Heat-up time is quick, around 30 minutes to 180, and the heat is even throughout the room. The stainless build is clean and the rock capacity produces great steam. Wiring was straightforward for my electrician. Solid, reliable heater.
Finlandia has a great reputation and this heater lives up to it. Quick heat-up, even warmth, and quiet operation. The rocks heat well and the loyly is excellent. The build feels durable and the finish is clean. Happy with the performance in my barrel sauna.
The FIN-45S heats my sauna quickly and evenly. I had an electrician do the hardwiring which I'd recommend. Once running it's reliable and the steam over the rocks is great. Build quality is solid stainless. Pleased with the purchase.
This heater is the right size for our family sauna. Heats up fast and maintains a steady temperature. The controls are simple and the build is sturdy. The rocks produce wonderful steam. Great Finnish craftsmanship and reliable performance.
Very happy with the FIN-45S. It heats the sauna evenly and the steam quality is excellent when I ladle water on the rocks. Build is solid and it runs quietly. Installation was clean. A dependable heater I'd recommend.