Finlandia · Electric Sauna Heater
Finlandia FIN-45S
FIN Series 4.5KW Sauna Heater
Finlandia FIN-45S
Overview
The Finlandia FIN-45 electric sauna heater is engineered for saunas up to 210 cubic feet (CF). In the rich tradition of authentic Finnish saunas, the wall-mounted FIN-45S sauna heater generates a satisfying, penetrating heat. The 4.5-kilowatt FIN-45 includes professional-grade stainless-steel heating elements and stainless-steel components. The unit is designed so that the sauna rocks are in direct contact with the heating elements for improved efficiency. The FIN-45 sauna oven features triple-wall construction for greater safety and lower surface temperatures. Its exceptionally large rock capacity provides optimal heat storage. When you buy a sauna, quality and value are important. Finlandia sauna heaters are engineered to provide years of safe, reliable, and efficient operation. Finlandia sauna heating units are made by Harvia and imported from Finland, the home of sauna. The FIN-45 electric sauna stove creates a traditional sauna experience by blanketing the room with an intense heat. Finlandia FIN Series heaters are perfect for any home sauna kit. The Finlandia FIN-45 heater is available in 240V, single-phase (1PH) or 208V, three-phase (3PH) configurations. The unit may be ordered with the standard red finish or the stainless-steel exterior (FIN-45-S). The FIN-45 sauna heater requires a control for operation, sold separately. For 240V/1PH operation, the CX170 control or F1T control can be used. For 208V/3PH operation, the CX170 control or FT2 control with FX303 contactor can be used. For commercial applications, the FIN-45 can be run 24 hours a day with the CX170 control and 24H7D time clock, or the F2 control with its respective contactor and 24H7D time clock. The Digital control comes with a power supply. The manual F-2 and F-2T controls require a contactor. The FIN45 carries a limited lifetime warranty and is fully serviceable. All Finlandia and Harvia sauna heaters are UL and ETL listed and tested for your safety.
Key Features
- 240V/1PH Operation with CX170 or F1T control
- 208V/3PH Operation with CX170 control or F2T control with FX303 contactor
- 24-Hour Operation with CX170 control and 24H7D time clock or F2 control with FX303 contactor and 24H7D time clock
- Wall-mounted
- Stainless steel elements
- Requires wall-mounted time/temperature control
- Requires a contactor with F2 and F-2T controls
- Available in 240V/1PH and 208V/3PH operation
- Stainless steel construction
- Stainless Steel exterior
- Industrial grade, serviceable heating elements
- Exceptionally large rock capacity
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 FIN45 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
to a friend
The integrated timer and thermostat on the S version mean I didn't have to wire a separate wall control, which simplified the whole install. It holds my set temperature within a couple of degrees all session. The Sauna Co. checkout flagged the model difference clearly so I knew exactly what I was buying.
Three months in and it performs like the first day. Quiet, even, and the controls have never glitched. A support rep answered a late-evening question about rock placement and didn't make me feel silly for asking.
Old hands like me don't want an app between us and a hot rock. The face-mounted dials are intuitive and the heater warms my cedar room fast. Crate arrived on time and a rep called the day before delivery just to confirm someone would be home.
Heat quality is genuinely soft and enveloping. My only note is that the integrated controls need a bit of breathing room from the bench, which I learned from the spec sheet support emailed me — glad I asked before mounting. Delivery itself was smooth and well tracked.
Simple, powerful, and built to last. Brought my 7x6 room up to a proper bake quickly and held it steady. Shipping was faster than quoted and nothing was damaged in transit, which after reading horror stories elsewhere was a relief.
The auto-off timer gives me peace of mind I didn't have with my last heater. Throws a beautiful steam and the stones stay warm forever. Ordering was painless and the confirmation email actually explained the breaker size in plain English.