Empire White Mountain Hearth TMV Wall Thermostat (Millivolt)
Precision heat control, built into your wall
Easily regulate your Empire gas fireplace’s temperature with the TMV Wall Thermostat—a millivolt-compatible, hard-wired controller featuring a dependable reed switch for accurate heat control.
Key Features
- Consistent temperature regulation via built-in reed switch
- Millivolt system compatibility for direct fireplace control
- Manual temperature adjustment with precise feedback
- Low-voltage operation—no external power needed
- Durable, wall-mounted design for everyday reliability
Product Features
Reed Switch Technology
At the heart of the TMV thermostat is a reed switch mechanism—a magnetically activated component that ensures smooth, accurate on/off control without mechanical wear. This provides long-term reliability and consistent performance for millivolt fireplace systems
Millivolt-Only Operation
The TMV is specifically engineered for millivolt control circuits, offering direct compatibility with Empire and White Mountain Hearth gas fireplaces and log sets. No external power or complicated wiring is required.
Manual Temperature Adjustment
Users can easily set and maintain their preferred comfort level. Once the room reaches the desired temperature, the thermostat automatically cycles the fireplace off to maintain consistent warmth.
Hard-Wired Dependability
Unlike battery-operated or wireless controls, this wired wall thermostat offers uninterrupted performance—no batteries to replace and no signal interference.
Simple Installation
The TMV installs easily with low-voltage thermostat wire (not included). Follow your Empire fireplace manual for wiring instructions and connection to the millivolt valve terminals.
Product Specifications
| Category |
Details |
| Brand |
Empire White Mountain Hearth |
| Model |
TMV |
| Type |
Wall Thermostat |
| Control Method |
Mechanical reed switch |
| System Compatibility |
Millivolt control valves only |
| Operation |
Manual temperature setting |
| Power Source |
Low-voltage (no external power) |
| Mounting Type |
Wall-mounted (hard-wired) |
| Electrical Rating |
Millivolt circuit compatible |
| Included Components |
Wall thermostat, mounting hardware (wire not included) |
| Use Case |
For use with Empire/White Mountain Hearth fireplaces |
| Technology |
Reed Switch (magnetically actuated) |
| Style |
Compact, traditional thermostat design |
| Installation |
Low-voltage hardwire connection |
| Maintenance |
None required beyond cleaning thermostat surface |
Warranty
Empire One-Year Limited Warranty
Limited One-Year Parts Warranty – Remote Controls, Thermostats, Accessories, and Parts
Should any remote control, thermostat, accessory, or other part fail because of defective workmanship within one year from the date of purchase, Empire will repair or replace it at Empire’s option.
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