Saunacore Sauna Heaters

In the North American market, Saunacore is respected for utilizing surgical-grade stainless steel and Incoloy heating elements. We find that these materials are significantly more resistant to corrosion and thermal expansion than the standard copper or lower-grade steel found in mass-market heaters, often doubling the operational life of the unit.

Yes. Saunacore's specialized triple-wall construction and vented body allow for massive radiant heat output. While air temperature standards are typically set at 194 degrees Fahrenheit, the density of the Saunacore stone tray creates a high-intensity radiant feel that bathers find significantly more powerful than standard wall-mounted units.

This is a proprietary airflow engineering feature. It creates an internal channel that pulls cool air from the floor, allowing the outer casing of the heater to run up to 50 degrees cooler than other brands. This protects the cedar walls from scorching and reduces the risk of accidental contact burns.

The "TS" error code indicates a Temperature Sensor fault. We find this is usually caused by a loose wire or a damaged sensor probe. We suggest inspecting the connections inside the sensor housing and ensuring the wire has not been pinched or severed during the wall installation.

A 6kW unit pulls 25 amps on a 240V circuit. While a 30-amp breaker meets the minimum requirement, we recommend a 40-amp breaker and 8-gauge copper wire. This provides the necessary overhead for a continuous high-amperage load and prevents the nuisance tripping commonly seen on undersized circuits.

The modern Mercuri digital series is WiFi-ready and compatible with smart home applications. However, we note that older Special Edition models utilizing mechanical controls cannot be upgraded; the entire contactor box and control panel must be replaced to enable remote smartphone operation.

We have positioned the reset button at the bottom front of the unit. If the heater loses power, you must manually depress this button until it clicks. If it trips repeatedly, it typically indicates that your sauna rocks are packed too tightly, which traps heat and prevents the unit from breathing.

Yes. Because Saunacore heaters generate intense radiant heat, we require high-density igneous stones such as Vulcanite. We warn that using river rocks or decorative stones is dangerous, as they can explode due to trapped moisture, which can damage the Incoloy heating elements.

Yes, Saunacore provides a commercial warranty for gyms, spas, and wellness centers. While shorter than the residential lifetime guarantee, it typically covers the elements for 1 to 3 years, provided the installation was performed by a licensed electrician and the unit remains unmodified.

If your panel displays "Too Hot," the room has exceeded 230 degrees Fahrenheit. For safety, the system disables the heater immediately. To clear this, you must allow the room to cool and then power-cycle the unit at the circuit breaker to reset the digital software.

On Mercuri models, enter the programming mode by holding the Up and Down arrows simultaneously for 10 seconds while in Standby. This toggles the display between F and C. Once set, the unit will remember your preference for all future sessions.

We require wall-mounted units to be installed at least 2 inches off the floor, but no more than 45 inches from the ceiling. This 2-inch air gap is critical for the vented body design to pull in cool air from the floor, preventing internal component overheating.

Yes. According to US installation manuals, all wiring between the heater and the contactor box must be protected by Liquid-Tight metal conduit. Using standard plastic or non-rated conduit is a common reason for failed building inspections.

No. Saunacore controls are certified as a specific set with Saunacore heaters. Utilizing a Mercuri or Commander control with another brand's heater voids the CSA/UL safety certifications and immediately cancels the manufacturer's warranty.

No. The Limited Lifetime Warranty applies only to the original consumer purchaser. If you purchase a home with a Saunacore heater already installed, the lifetime coverage does not transfer, though we still offer full part support for these units.

We state that the sauna must heat for at least 30 minutes before water is applied to the stones. This ensures the Incoloy elements have reached full operating temperature, which prevents thermal shock—a primary cause of element cracking and premature failure.

Yes. We emphasize that using chemically treated water (chlorine or bromine) will rapidly corrode the industrial-grade elements. Only fresh tap water or approved sauna essences should be used to preserve the integrity of the stainless steel components.

A flashing Heat LED indicates that the heater is actively energized and increasing the room temperature. Once your target heat is reached, the LED will stay solid, signaling that the system is now in maintenance mode to sustain the temperature.

On digital models, you can only adjust settings downward once a cycle has started. This is a deliberate safety feature to prevent accidental overheating. To increase the duration or temperature, you must stop the cycle and restart it with the new parameters.

For units installed with GFCI breakers, we suggest running the heater on a non-GFCI circuit for the first few hours. This "bakes out" residual factory moisture from the elements, preventing the sensitive GFCI from nuisance tripping during the first few sessions.

Sauna heaters are optimized for 7-foot ceilings. In an 8-foot room, heat pools at the ceiling, forcing the heater to stay on longer to reach the thermostat's target at the bench level. This excessive runtime often causes the safety sensor at the base to overheat and trip.

We find that the temperature sensor kit is the most common missing item, as it is often left behind during a prior return. We always suggest verifying that the heater guard brackets and sensor are present before finalizing an open-box purchase.