Answering the need for convenient, reliable control of millivolt-powered pellet stoves, these five thermostats and remote kits are suitable for a range of setups from basic on/off to fully automated comfort. They are best for homeowners who want to replace a wall switch, add remote control capability, or improve energy management on millivolt gas valve systems.
| Product | Best For | Why It Stands Out |
|---|---|---|
| Touch Screen Programmable Thermostat Remote Control Kit | Millivolt valves with wall-switch replacement | All-in-one remote with touch screen; versatile for ambient fireplaces |
| Fireplace Thermostat Remote Control Kit (SENSTREE) | Excellent remote reach and three operation modes | Wide compatibility and timer features |
| Pellet Stove Thermostat Probe (Harman compatible) | Replacement probe for room sensing | Direct, simple sensor replacement option |
| Durablow On/Off Remote With Thermostat | Remote control with built-in thermostat | Transmitter-based control for millivolt systems |
| Honeywell Economy Millivolt Thermostat | Budget-friendly millivolt heat-only control | Simple, non-programmable but dependable |
Touch Screen Programmable Thermostat Remote Control Kit (Millivolt)

Best For: Millivolt gas valve fireplaces and stoves that benefit from a touchscreen remote, especially where installation of a wall thermostat is inconvenient. Selected for its all-in-one design and compatibility with ambient installations.
Caution: Installation should be performed by a qualified technician to ensure safe operation with millivolt valves and ignition systems.
Fireplace Thermostat Remote Control Kit (SENSTREE)

Features include three operation modes, a 65-foot remote range, and compatibility with most millivolt gas valves (TH/TP terminals). The kit includes a plug-in wiring harness for easier wiring and replacement of manual controls.
Best For: Homeowners seeking flexible control with a longer-range remote and clear LCD feedback for millivolt setups. Selected for its explicit three-mode operation and straightforward installation.
Limitation: Professional installation is recommended for safety and correct wiring in gas valve systems.
Pellet Stove Thermostat Probe

Best For: Replacing a damaged or worn room sensor with a direct probe for Harman and compatible pellet stove models. Selected for straightforward sensing rather than full control.
Limitation: This is a probe replacement, not a full thermostat control unit; it may require additional wiring for full operation.
Durablow On/Off Remote Control Kit plus Thermostat offers transmitter-based control for millivolt valves and IPI modules. It replaces a wall switch and adds a thermostat function and timer features.
Best For: Buyers needing a compact transmitter solution that integrates thermostat control with an existing millivolt system. Selected for its remote convenience and compatibility with multiple valve setups.
Caution: Verify compatibility with your specific valve and ignition system before purchasing.
Honeywell Economy Millivolt Thermostat

Best For: Budget-conscious buyers seeking a simple, non-programmable millivolt heat-only control. Selected for its straightforward operation and reliable baseline performance.
Caution: This is a non-programmable unit; it lacks advanced scheduling and remote features found in other options.
Buying Guide: Millivolt Thermostats For Pellet Stoves
Key considerations when choosing a millivolt thermostat or remote kit include compatibility, installation effort, and desired features. The products above cover a spectrum from basic heat-only controls to remote-enabled options with timers and multiple modes.
- Compatibility: Confirm that the thermostat or remote kit is designed for millivolt gas valves and ignition systems used by your stove or fireplace. Look for TH/TP terminal compatibility and any required 24VAC components.
- Control Type: Decide between a simple wall-mount thermostat replacement, a remote control system, or a combined touchscreen solution. Remote and programmable units offer better temperature management and convenience.
- Installation: Some kits require electrical wiring or professional installation. If in doubt, hire a qualified technician to ensure safe operation with gas valves and ignition systems.
- Features: Consider modes (ON, AUTO, OFF), programmable timers, and range of the remote. A unit with a timer can save energy by turning the fireplace off after a set period.
- Sensor Placement: A thermostat probe or room-sensing component should be placed away from drafts, direct heat, and chimneys to avoid skewed readings.
- Reliability and Safety: Use products from reputable brands and verify that the device does not interfere with the millivolt valve operation or ignition.
Frequently Asked Questions
- What is a millivolt thermostat and where is it used?
A millivolt thermostat controls gas valves and ignitions in some gas fireplaces and pellet stoves using millivolt signals. It is designed for systems that operate at low voltage without a continuous 120V power supply.
- Can I install a remote thermostat on a millivolt stove myself?
Installation can be straightforward for some remote kits, but many systems require wiring and safe integration with gas valves. It is recommended to use a qualified technician for safety.
- Which features matter most for a pellet stove thermostat?
Key features include compatibility with millivolt valves, remote control range, programmable modes (ON/AUTO/OFF), and timers to automate shut-off.
- Is a touchscreen thermostat better than a basic remote?
Touchscreen units offer intuitive control and quick adjustments, while basic remotes may suffice for simple on/off regulation. Choose based on your comfort with electronics and desired convenience.
- Do millivolt thermostats require batteries?
Many remote controls are battery-powered, while some units may operate with the stove’s power or a separate receiver. Check each product’s power requirements.
- Can I use any millivolt thermostat with any pellet stove?
Not all millivolt thermostats are universal. Verify valve compatibility, terminal types (TH/TP), and ignition system requirements before purchasing.
