I had a bunch of questions before ordering and they were very patient with me. Ended up getting exactly what I needed and the price was good too.
Finlandia sauna heaters are Finnish-made electric heaters built for dependable performance and an authentic traditional sauna experience. Available in the FLB Series with built-in controls and the FIN Series for external controls, they offer options for both simple installations and advanced digital operation. Compare the two series, find the right heater size for your sauna, and choose the model that best fits your space and preferences.
100-210 CU.FT
Finlandia FIN-45 Series 4.5kW 240V/208V Electric Sauna Heater
Regular price
$927.90
Sale price
$927.90
Regular price
$1,031.00
Choose your option
100-210 CU.FT
Finlandia FIN-45S Series 4.5kW 240V/208V Electric Sauna Heater
Regular price
$960.30
Sale price
$960.30
Regular price
$1,067.00
Choose your option
170-300 CU.FT
Finlandia FIN-60 Series 6kW 240V/208V Electric Sauna Heater
Regular price
$1,004.40
Sale price
$1,004.40
Regular price
$1,116.00
Choose your option
100-210 CU.FT
Finlandia FLB-45 Series 4.5kW 240V Electric Sauna Heater With Built-In Controls
Regular price
From $1,028.70
Sale price
From $1,028.70
Regular price
$1,143.00
Choose your option
170-300 CU.FT
Finlandia FIN-60S Series 6kW 240V/208V Electric Sauna Heater
Regular price
$1,036.80
Sale price
$1,036.80
Regular price
$1,152.00
Choose your option
170-300 CU.FT
Finlandia FLB-60 Series 6kW 240V Electric Sauna Heater With Built-In Controls
Regular price
From $1,093.50
Sale price
From $1,093.50
Regular price
$1,215.00
Choose your option
250-425 CU.FT
Finlandia FIN-80 Series 8kW 240V/208V Electric Sauna Heater
Regular price
$1,124.10
Sale price
$1,124.10
Regular price
$1,249.00
Choose your option
250-425 CU.FT
Finlandia FIN-80S Series 8kW 240V/208V Electric Sauna Heater
Regular price
$1,156.50
Sale price
$1,156.50
Regular price
$1,285.00
Choose your option
250-425 CU.FT
Finlandia FLB-80 Series 8kW 240V Electric Sauna Heater With Built-In Controls
Regular price
From $1,174.50
Sale price
From $1,174.50
Regular price
$1,305.00
Choose your option
What Are Finlandia Sauna Heaters?
Finlandia sauna heaters are electric sauna heaters manufactured by Harvia in Finland and sold under the Finlandia name. They heat a bed of stones using stainless steel heating elements, producing the high, even heat that traditional sauna requires. When you ladle water over the hot stones, they produce löyly, the burst of steam that defines the traditional Finnish sauna experience.
The lineup divides into two series based on control type. Designed for simple installation and operation, the FLB series incorporates its timer and thermostat directly into the heater, so no additional control panel is required. The FIN series has no on-unit controls and connects to an external wall-mounted panel such as the Xenio digital control or the F-1T mechanical timer.
Both series are wall-mounted, use stainless steel elements, and carry UL and ETL listings for the US market. Heaters are sized by power output, ranging from approximately 3 kW for smaller rooms up to 8 kW for larger ones. SaunaHeaters.com carries Finlandia sauna heaters and controls with US-based expert support.
Finlandia FLB Series (Built-In Controls)
The Finlandia FLB series is the self-contained option, with everything needed to operate the heater built directly into the unit. Everything is controlled directly from the heater, including temperature adjustment, a 60-minute session timer, and a delayed start feature that can be programmed up to 8 hours ahead. No external control box is needed, and no additional wiring beyond the heater itself.
Triple-wall construction keeps outer surface temperatures lower than single-wall designs, adding a layer of safety in the sauna room. The stainless steel elements and large rock capacity deliver consistent, even heat and good steam when water is added.
The FLB line runs from the Finlandia FLB-45 at 4.5 kW up to the Finlandia FLB 80 at 8 kW. Matching the model to room volume is the key sizing decision. The FLB series is the right choice for buyers who want built-in Finlandia sauna heater controls built into the unit, with no separate panel to source, mount, or wire.
Finlandia FIN Series (External Controls)
The Finlandia FIN series is designed from the start to run from an external wall panel rather than any controls on the heater body. No timers, thermostats, or operating controls are integrated into the heater itself. The Finlandia FIN series is the right choice when a separate digital or mechanical control panel is either preferred or required.
Choose the FIN series if you want a digital wall interface, remote or Wi-Fi sauna control, or a cleaner installation where Finlandia sauna heater controls are mounted away from the heater. Compatible panels include the Xenio digital control and the F-1T mechanical timer. Confirm which panel is compatible with your FIN model before ordering.
The FIN series (Finlandia FIN-45, FIN-60, and FIN-80) is also available in three-phase configurations for larger or commercial sauna rooms, where the FLB series is not. One point that matters at purchase: an FLB heater cannot be converted to digital control later. If a digital wall panel is part of the plan now or in the future, the FIN series is the only path. Buying the wrong series means replacing the heater, not just upgrading the control.
FLB vs FIN: Which Finlandia Series Is Right for You?
The core decision on this page comes down to controls. The following table compares the two series side by side.
| FLB Series | FIN Series | |
|---|---|---|
| Controls | Built-in timer and thermostat on the unit | None on unit; needs an external wall panel |
| Digital / Wi-Fi option | No | Yes, via panels like the Xenio |
| Best for | Simple, self-contained setup | Digital control, remote start, cleaner look |
| Phase options | Single-phase (residential) | Single-phase and three-phase (incl. commercial) |
| Convert later? | Cannot be converted to digital | Built for external control from the start |
If the goal is a simple, plug-in-and-go Finlandia sauna heater with no extra components to source, the FLB is the right call. If a digital interface, Wi-Fi scheduling, or a wall-mounted panel is part of the installation plan, start with the FIN series. Switching later is not possible without replacing the heater.
Choosing the Right Size Finlandia Heater
Sizing a Finlandia electric sauna heater starts with the room's volume. Measure the interior in cubic feet, length multiplied by width multiplied by height, then match that number to the heater's rated range. The list below covers the FLB line as a reference; FIN series models are available in matching power outputs.
- Finlandia FLB 45 delivers 4.5 kW of power, making it suitable for sauna rooms between 100 and 210 cubic feet.
- Finlandia FLB 60 offers 6 kW of heating power for sauna rooms ranging from 170 to 300 cubic feet.
- Finlandia FLB 80 provides 8 kW of power and is ideal for sauna rooms between 250 and 425 cubic feet.
Room insulation, glass surfaces, and cold-facing exterior walls all play a role in how quickly the sauna reaches the desired temperature. When any of those factors are present, sizing up to the next model is worth considering. The sauna heater size calculator at SaunaHeaters.com makes it easier to confirm the right power for your specific room before purchasing.
What Does the “S” Mean in Finlandia Model Names?
When comparing Finlandia sauna heaters, you may see model names such as the 45S, 60S, or 80S. The “S” refers to the stainless steel exterior. It distinguishes these stainless steel-finish models from their standard counterparts and refers to the exterior finish of the heater, not a difference in heating power or control type.
For instance:
- Finlandia FIN 45S: 4.5 kW heater with a stainless steel exterior
- Finlandia FIN 60S: 6 kW heater with a stainless steel exterior
- Finlandia FIN 80S: 8 kW heater with a stainless steel exterior
The “S” designation does not change the basic sizing calculation. Choose the heater based on your sauna's cubic footage and electrical requirements first, then select the stainless steel version if that finish fits your installation and aesthetic preferences.
Finlandia Controls and Accessories
Finlandia sauna heater controls for the FIN series are sold separately and need to be specified at the time of purchase. SaunaHeaters.com stocks compatible panels including the Xenio digital control, which supports Wi-Fi scheduling and precise temperature management, and the F-1T mechanical timer for a simple analog interface. These panels are designed specifically for the FIN series and are not compatible with FLB heaters.
Beyond controls, a complete installation typically includes:
- Sauna stones: Finlandia heaters require stones sized to the model. Using the correct stone type and quantity affects both heat quality and heating element longevity.
- Heater guards or safety rails: Required clearance barriers between the heater and the bench or floor area, particularly important in commercial and shared-use saunas.
- Replacement elements: Genuine stainless steel elements are available for long-term serviceability.
Installation and Safety
Finlandia electric sauna heaters are 240V appliances that require a dedicated electrical circuit sized to the specific model. This is not a casual DIY project. A licensed electrician should handle all wiring to local code. Installing line-voltage heating equipment in a wet room without proper electrical work creates a serious safety risk.
Beyond the electrical connection, a few installation details have a direct effect on performance:
- Wall mounting and clearances: The heater mounts on the wall with blocking between the studs for solid support. Maintain the minimum clearances from benches, walls, and combustible surfaces specified in the installation manual for the model.
- Sensor placement: Mount the temperature sensor approximately 6 inches below the ceiling and 12 inches to the side of the heater, not directly above it. A sensor positioned directly above the heater reads elevated temperatures and causes the thermostat to cycle off before the room has reached the set temperature.
- Voltage and neutral wire: Most Finlandia models are dual-rated for 240V residential and 208V commercial power, though the amperage draw differs at each voltage. If a digital panel such as the Xenio is part of the installation, confirm whether a neutral wire is required at the panel location before the electrician rough-ins the circuit.
FREE SHIPPING - AUTHORIZED DEALER -
Why Buy Finlandia Heaters from SaunaHeaters.com?
SaunaHeaters.com is an authorized dealer of Finlandia sauna heaters, which means genuine products, manufacturer warranty coverage, and direct access to support from people who know the lineup. Finlandia sauna heaters carry a limited lifetime warranty. See the product page for the warranty coverage and terms for your selected model.
For buyers deciding between the two series, the team at SaunaHeaters.com helps match the heater to the right control panel so the wrong combination is never ordered. Finlandia sauna heaters for sale here ship by curbside freight, and US-based sizing and wiring guidance is available by phone or chat Monday through Saturday. A best price guarantee applies across the range.
Frequently Asked Questions
What is the difference between the Finlandia FIN and FLB series?
What is the difference between the Finlandia FIN and FLB series?
The FLB series has built-in timer and thermostat controls on the heater body, so it works as a standalone unit. The Finlandia FIN series has no on-unit controls and connects to an external wall panel such as the Xenio. Choose the FLB for a simple self-contained setup and the FIN for digital or remote control.
Who makes Finlandia sauna heaters?
Who makes Finlandia sauna heaters?
Finlandia sauna heaters are manufactured by Harvia in Finland and sold under the Finlandia brand. They are UL and ETL listed for the US market, with stainless steel elements and wall-mount installation.
What size Finlandia heater do I need?
What size Finlandia heater do I need?
Match the heater's kW output to your sauna's cubic footage. As a general guide, 3 kW suits rooms up to about 130 cubic feet and 8 kW covers up to about 425.
Use the sauna heater size calculator to confirm the right Finlandia electric sauna heater for your room, and size up if insulation is light or glass area is significant.
Can I add a digital control to an FLB heater later?
Can I add a digital control to an FLB heater later?
An FLB heater cannot be converted to digital control after purchase. The Finlandia sauna heater controls on the FLB are built into the unit and are not removable or upgradeable. If a digital wall panel is part of the plan, choose the FIN series before purchase.
Do Finlandia heaters need special wiring?
Do Finlandia heaters need special wiring?
Most Finlandia sauna heaters require a dedicated 240V hardwired electrical service. The exact wiring requirements depend on the heater model and wattage, so installation by a licensed electrician is recommended. Digital panels like the Xenio may also require a neutral wire at the panel location. Confirm the full electrical requirements for your model before rough-in.
Can a Finlandia heater run on 208V commercial power?
Can a Finlandia heater run on 208V commercial power?
Most Finlandia models are dual-rated for both 240V residential and 208V commercial power, though the amperage draw differs between the two voltages. Confirm the rating on the specific Finlandia electric sauna heater model before installation in a commercial setting.
Where should the temperature sensor go?
Where should the temperature sensor go?
Mount the sensor approximately 6 inches below the ceiling and 12 inches to the side of the heater. Placing it directly above the heater causes it to read the heater's elevated output rather than the room temperature, which makes the Finlandia sauna heater controls cycle off too early, and the room stays cooler than the set temperature.
What is the warranty on a Finlandia sauna heater?
What is the warranty on a Finlandia sauna heater?
Finlandia sauna heaters for sale at SaunaHeaters.com are covered by a limited lifetime warranty. Since terms and conditions may vary by model, check the product page for your selected heater before completing your purchase.