
Resideo TH114-A-240D-B Thermostat
The Resideo TH114-A-240D-B Thermostat is a high-performance line voltage thermostat engineered for precise control of electric heating systems. Designed for heavy-duty 240 Vac applications, this double pole (DPST) unit manages loads up to 3600 Watts and 15 Amps resistive. It features an epoxy-soundproofed relay to minimize operational clicking, making it an ideal choice for noise-sensitive residential environments. With a temperature setting range of 40-86°F and a tight 1-degree differential, it maintains consistent thermal comfort while preventing excessive cycling. The backlit display and on-screen heating power indicator ensure visibility in low-light conditions, while the integrated On/Standby switch allows for complete system shutdown during the off-season. This non-programmable electronic thermostat is compatible with baseboard heaters, radiant ceilings, convectors, and fan-forced heaters. Techs appreciate the slim, vertical-mount design and the reliable thermistor sensor that delivers 0.9°F accuracy without the need for batteries.
- Enhanced Compatibility: Optimized for 240V baseboard heating, radiant ceiling, and convector systems.
- Quiet Operation: Transitions are dampened by an epoxy-soundproofed relay for silent switching.
- High Capacity: Robust DPST switching handles a maximum load of 15A or 3600W.
- Precision Control: Maintains temperature within 0.9°F to prevent significant fluctuations and improve efficiency.
- Installation Professionalism: Battery-free design with 6-inch tinned copper lead wires for standard electrical box mounting.
Is this thermostat compatible with 120V systems?
No, this specific model is rated for 240 Vac. For 120V applications, check the appropriate sub-model in the TH114 series.
Does it support both floor and ambient sensing?
While the TH114 series includes AF models, the 240D-B is primarily used for ambient air temperature control. Verify your sensor logic (AF vs. F mode) on the backplate during installation.
Can I use this with a fan-forced heater?
Yes, it is rated for fan-forced heaters and convectors, provided the total load does not exceed 15 Amps.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $95.21
-65%$95.21
$33.32Resideo TH114-A-240D-B Thermostat
The Resideo TH114-A-240D-B Thermostat is a high-performance line voltage thermostat engineered for precise control of electric heating systems. Designed for heavy-duty 240 Vac applications, this double pole (DPST) unit manages loads up to 3600 Watts and 15 Amps resistive. It features an epoxy-soundproofed relay to minimize operational clicking, making it an ideal choice for noise-sensitive residential environments. With a temperature setting range of 40-86°F and a tight 1-degree differential, it maintains consistent thermal comfort while preventing excessive cycling. The backlit display and on-screen heating power indicator ensure visibility in low-light conditions, while the integrated On/Standby switch allows for complete system shutdown during the off-season. This non-programmable electronic thermostat is compatible with baseboard heaters, radiant ceilings, convectors, and fan-forced heaters. Techs appreciate the slim, vertical-mount design and the reliable thermistor sensor that delivers 0.9°F accuracy without the need for batteries.
- Enhanced Compatibility: Optimized for 240V baseboard heating, radiant ceiling, and convector systems.
- Quiet Operation: Transitions are dampened by an epoxy-soundproofed relay for silent switching.
- High Capacity: Robust DPST switching handles a maximum load of 15A or 3600W.
- Precision Control: Maintains temperature within 0.9°F to prevent significant fluctuations and improve efficiency.
- Installation Professionalism: Battery-free design with 6-inch tinned copper lead wires for standard electrical box mounting.
Is this thermostat compatible with 120V systems?
No, this specific model is rated for 240 Vac. For 120V applications, check the appropriate sub-model in the TH114 series.
Does it support both floor and ambient sensing?
While the TH114 series includes AF models, the 240D-B is primarily used for ambient air temperature control. Verify your sensor logic (AF vs. F mode) on the backplate during installation.
Can I use this with a fan-forced heater?
Yes, it is rated for fan-forced heaters and convectors, provided the total load does not exceed 15 Amps.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Resideo TH114-A-240D-B Thermostat is a high-performance line voltage thermostat engineered for precise control of electric heating systems. Designed for heavy-duty 240 Vac applications, this double pole (DPST) unit manages loads up to 3600 Watts and 15 Amps resistive. It features an epoxy-soundproofed relay to minimize operational clicking, making it an ideal choice for noise-sensitive residential environments. With a temperature setting range of 40-86°F and a tight 1-degree differential, it maintains consistent thermal comfort while preventing excessive cycling. The backlit display and on-screen heating power indicator ensure visibility in low-light conditions, while the integrated On/Standby switch allows for complete system shutdown during the off-season. This non-programmable electronic thermostat is compatible with baseboard heaters, radiant ceilings, convectors, and fan-forced heaters. Techs appreciate the slim, vertical-mount design and the reliable thermistor sensor that delivers 0.9°F accuracy without the need for batteries.
- Enhanced Compatibility: Optimized for 240V baseboard heating, radiant ceiling, and convector systems.
- Quiet Operation: Transitions are dampened by an epoxy-soundproofed relay for silent switching.
- High Capacity: Robust DPST switching handles a maximum load of 15A or 3600W.
- Precision Control: Maintains temperature within 0.9°F to prevent significant fluctuations and improve efficiency.
- Installation Professionalism: Battery-free design with 6-inch tinned copper lead wires for standard electrical box mounting.
Is this thermostat compatible with 120V systems?
No, this specific model is rated for 240 Vac. For 120V applications, check the appropriate sub-model in the TH114 series.
Does it support both floor and ambient sensing?
While the TH114 series includes AF models, the 240D-B is primarily used for ambient air temperature control. Verify your sensor logic (AF vs. F mode) on the backplate during installation.
Can I use this with a fan-forced heater?
Yes, it is rated for fan-forced heaters and convectors, provided the total load does not exceed 15 Amps.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












