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The HEAT GLO smart-stat-hht is a remote thermostat designed for gas fireplaces and pellet stoves manufactured under the HHT family of brands, including Heat N Glo, Heatilator, and Quadra-Fire. This OEM replacement control allows the end user or installing technician to regulate fireplace operation through a wall-mounted thermostat interface. It replaces discontinued part numbers SMART-STAT-HNG, SMART-STAT-HTL, and SMART-STAT-MAJ, making it a direct upgrade for existing installations where the original thermostat has failed or been discontinued. Licensed HVAC and hearth technicians are the typical installers for this component.
This thermostat is compatible with a range of residential gas fireplace and pellet stove applications across the HHT brand portfolio. Verified compatible units include the Heatilator OXDV30-IPI and NDV3630I-B, Heat N Glo 6000GDVFL, 6000TV (standing pilot only), and 6000TRXI-IPI, as well as the Quadra-Fire Santa-Fe pellet stove. The standing pilot limitation on the 6000TV model should be confirmed before installation. Always verify compatibility by checking the owners manual for the specific appliance part number before ordering.
Compatible with Heatilator gas fireplaces OXDV30-IPI and NDV3630I-B, Heat N Glo gas fireplaces 6000GDVFL, 6000TV (standing pilot only), and 6000TRXI-IPI, and the Quadra-Fire Santa-Fe pellet stove. This part replaces SMART-STAT-HNG, SMART-STAT-HTL, and SMART-STAT-MAJ. Additional models may be compatible — consult the appliance owners manual to confirm the part number before installation.
Installation should be performed by a qualified hearth or HVAC technician familiar with low-voltage thermostat wiring and gas appliance controls. Shut off power to the fireplace or stove at the dedicated switch or breaker before disconnecting the existing thermostat. Confirm the ignition type of the appliance (IPI vs. standing pilot) matches the thermostat application requirements before wiring. Refer to the appliance service manual for wiring diagram specifics, as thermostat lead connections vary by model.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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