We view precision maintenance as the cornerstone of sauna longevity, providing a comprehensive inventory of genuine replacement components for electric, gas, and wood-burning systems. Our technical collection focuses on OEM hardware from industry-leading manufacturers including Harvia, Finlandia, Scandia, and HUUM, ensuring your heating unit maintains its original safety certifications and thermal efficiency. Whether you require incoloy heating elements, high-limit sensors, or specialized control modules, we provide the industrial-grade parts necessary to restore professional-level performance to your wellness environment.
- OEM Heating Elements: We prioritize genuine replacement elements constructed from high-grade stainless steel, which we have verified resist warping and burnout even under the thermal stress of daily 240V operations.
- Precision Safety Components: We focus on factory-specified high-limit resets and ETA circuit breakers, ensuring your contactor assemblies and heater circuits remain protected against electrical overloads and surges.
- Advanced Control Integration: Our collection includes specialized UKU extension boxes and communication cables required for high-powered HUUM and Harvia systems to maintain cool, reliable operation.
- Aesthetic and Functional Accessories: We offer purpose-built safety rails and rounded olivine diabase stones, specifically engineered to optimize vertical airflow while enhancing the Scandinavian architectural presence of your heater.
Professional Maintenance and Hardware Troubleshooting
Restoring a sauna system requires strict adherence to manufacturer specifications and proper part identification. We have compiled these expert answers to ensure your maintenance projects result in a safe and technically sound outcome.
How do I know if my Harvia heating element is burnt out?
If your sauna is taking significantly longer to reach temperature or struggling to achieve 180 degrees Fahrenheit, it is likely that one of the internal elements has failed. We suggest having an electrician perform a continuity test with a multimeter; an open circuit confirms the element requires replacement.
Are Finlandia and Harvia heating elements interchangeable?
Yes. Since Finlandia heaters are manufactured by Harvia in Finland, models such as the FLB and FIN series utilize the identical ZSK or ZSP elements found in Harvia KIP and Vega units. We recommend matching the specific Z-part number located on the element base for a precise fit.
Why do HUUM heating elements seem to fail faster in the US?
HUUM elements are engineered for high-mass environments using rounded stones. In the US market, elements often fail prematurely if stones are packed too tightly or if irregular river rocks are substituted for certified olivine diabase, causing localized hot spots and warping.
Can I buy a higher kW element to upgrade my 4.5kW Harvia to a 6kW?
No. We strictly emphasize that elements must only be replaced with the exact wattage and part number specified for your model. Attempting to upgrade elements without modifying the internal wiring and circuit breaker is a fire hazard and violates UL 875 safety standards.
Where can I find a replacement 60-minute timer for a Finlandia heater?
Finlandia heaters typically utilize mechanical Harvia timers. We note that it is critical to purchase the US version rated for 240V/60Hz, as European 50Hz versions will not maintain accurate timing on the North American electrical grid.
Why is my HUUM UKU controller screen blank?
If the screen fails to illuminate despite the heater having power, we suggest inspecting the RJ11 or RJ10 communication cable. These are frequently pinched behind cedar walls during installation; replacing this cable typically restores the digital display.
How do I replace the "High-Limit" safety switch on a Harvia heater?
The high-limit reset is a thermal sensor located at the base of the unit. If it fails to reset, the internal capillary tube is likely compromised. We require replacing the entire sensor assembly, as these safety components cannot be bypassed for any reason.
Can I use a third-party WiFi controller on my Finlandia heater?
This is only possible if your heater is pre-wired for external controls. If your unit features manual knobs on the bottom, we do not recommend adding a WiFi controller, as bypassing internal wiring voids the UL listing and manufacturer warranty.
Do I have to use HUUM's rounded stones, or can I use Harvia rocks in a HUUM?
HUUM heaters are specifically designed for rounded stones to facilitate essential vertical airflow. Utilizing angular, jagged rocks can restrict convection and cause the elements to burn out prematurely due to insufficient cooling.
My Harvia stone grate is rusting; is there a stainless steel replacement?
While older models often utilized galvanized steel grates, we now offer heavy-duty stainless steel replacements. These are specifically designed to resist the corrosion caused by frequent water application and high-humidity environments.
Are there "Universal" heating elements for sauna heaters in the US?
No. Heating elements are custom-bent to the specific dimensions of each heater shell. We warn that utilizing off-brand or universal elements can result in electrical shorts or localized fires; always use brand-specific OEM parts for your hardware.
Where is the best place to find Harvia replacement parts in the USA?
We recommend utilizing authorized Harvia and Finlandia distributors within the US. Importing elements directly from Europe often results in high shipping costs and increased risk of fragile elements being damaged during transit.
Why does my HUUM heater need a "Power Box" (Uku Extension)?
Standard UKU controllers are not designed to manage the high amperage of heaters exceeding 9kW. We require the use of the Main Control Module extension, which contains the heavy-duty relays necessary to switch loads of 40 amps or more safely.
Is it cheaper to replace the elements or buy a new Finlandia heater?
Replacing a full set of elements is significantly more cost-effective, typically costing a fraction of a new unit. Unless the stainless steel shell is warped or severely rusted, new elements will restore the heater to factory performance.
Can I replace the "Bulb and Capillary" thermostat on an older Finlandia?
Yes. When installing a new mechanical thermostat, we emphasize that you must not kink or sharply bend the copper capillary tube. Any break in the internal seal will render the new component non-functional.
What causes the contactor (relay) in my Harvia box to hum or buzz?
This is usually caused by dust or oxidation on the magnetic contact points. We suggest replacing the contactor entirely rather than attempting to clean it, as this ensures a safe and reliable electrical bridge for high-wattage elements.
Does using non-authorized parts void my sauna insurance?
In many jurisdictions, utilizing non-UL-listed or non-original elements can disqualify an insurance claim in the event of a fire. We strictly recommend using only factory-authorized parts to maintain full safety and insurance compliance.
Why are HUUM replacement elements so expensive in the US?
HUUM elements are specialized, high-wattage components imported from Estonia. The combination of their unique tall shape, specialized alloy, and import logistics results in a higher retail price compared to standard element designs.
How do I know if I need a new Temperature Sensor or a new Control Panel?
If the display shows an error code such as E1 or SN, the issue is typically the sensor or its wiring. If the interface is glitchy or non-responsive, the control panel itself is the likely failure point in the electrical logic chain.
Can I buy replacement "Knobs" for my Harvia KIP heater?
Yes. Plastic timer and thermostat knobs are available as low-cost replacement parts. They are designed to simply pull off and push back onto the metal shafts, making them an easy fix for residential or high-traffic rental units.