Resideo T812A1010 Thermostat
Engineered for reliable, low-voltage control of single-stage heating systems, the Resideo T812A1010 Thermostat is a staple for service calls requiring a durable, non-programmable heat-only thermostat. This unit features a snap-acting bimetal switch that eliminates the need for precise leveling during installation and avoids the use of mercury. Field-tested for 24 Vac heating systems, it operates on a Single Pole Single Throw (SPST switching action) with a dedicated positive off system switch for complete manual control. The Premier White finish and included wallplate ensure a clean, professional look on any job site. With a setting range of 45-95°F and an operating humidity tolerance of up to 90% RH, this low voltage thermostat provides consistent performance across diverse residential environments. The package comes complete with a resistor assembly, mounting screws, and wall anchors, making it an efficient OEM replacement thermostat for technicians focused on quick, reliable system restoration.
Key Benefits for Contractors- Simplified Installation: The snap-action mechanism performs regardless of mounting level, saving time on rough-in or retrofit calls.
- Broad Compatibility: Standard 18-30Vac rating and SPST action make this a versatile 24 volt heating control for furnaces and boilers.
- Rugged Reliability: Heavy-duty bimetal sensing element maintains +/- 3-degree accuracy without electronic complexity.
- Full Kit Included: Box contains the mounting plate, hardware, and resistor assembly required for immediate field commissioning.
Is the Resideo T812A1010 compatible with millivolt systems?
No, this specific model is designed for 24 Vac applications. For millivolt or 750 mV systems, the TS812 series is the correct technical selection.
Does this unit require batteries for operation?
The T812A1010 is a mechanical snap-action device that draws its 18-30Vac power directly from the R and W terminals, requiring no batteries to maintain settings.
Can I use this for a cooling-only or heat pump application?
This is a 1-stage heat only thermostat. It lacks the Y or O/B terminals necessary for compressor control or reversing valve operation.
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.
Resideo T812A1010 Thermostat
Engineered for reliable, low-voltage control of single-stage heating systems, the Resideo T812A1010 Thermostat is a staple for service calls requiring a durable, non-programmable heat-only thermostat. This unit features a snap-acting bimetal switch that eliminates the need for precise leveling during installation and avoids the use of mercury. Field-tested for 24 Vac heating systems, it operates on a Single Pole Single Throw (SPST switching action) with a dedicated positive off system switch for complete manual control. The Premier White finish and included wallplate ensure a clean, professional look on any job site. With a setting range of 45-95°F and an operating humidity tolerance of up to 90% RH, this low voltage thermostat provides consistent performance across diverse residential environments. The package comes complete with a resistor assembly, mounting screws, and wall anchors, making it an efficient OEM replacement thermostat for technicians focused on quick, reliable system restoration.
Key Benefits for Contractors- Simplified Installation: The snap-action mechanism performs regardless of mounting level, saving time on rough-in or retrofit calls.
- Broad Compatibility: Standard 18-30Vac rating and SPST action make this a versatile 24 volt heating control for furnaces and boilers.
- Rugged Reliability: Heavy-duty bimetal sensing element maintains +/- 3-degree accuracy without electronic complexity.
- Full Kit Included: Box contains the mounting plate, hardware, and resistor assembly required for immediate field commissioning.
Is the Resideo T812A1010 compatible with millivolt systems?
No, this specific model is designed for 24 Vac applications. For millivolt or 750 mV systems, the TS812 series is the correct technical selection.
Does this unit require batteries for operation?
The T812A1010 is a mechanical snap-action device that draws its 18-30Vac power directly from the R and W terminals, requiring no batteries to maintain settings.
Can I use this for a cooling-only or heat pump application?
This is a 1-stage heat only thermostat. It lacks the Y or O/B terminals necessary for compressor control or reversing valve operation.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Engineered for reliable, low-voltage control of single-stage heating systems, the Resideo T812A1010 Thermostat is a staple for service calls requiring a durable, non-programmable heat-only thermostat. This unit features a snap-acting bimetal switch that eliminates the need for precise leveling during installation and avoids the use of mercury. Field-tested for 24 Vac heating systems, it operates on a Single Pole Single Throw (SPST switching action) with a dedicated positive off system switch for complete manual control. The Premier White finish and included wallplate ensure a clean, professional look on any job site. With a setting range of 45-95°F and an operating humidity tolerance of up to 90% RH, this low voltage thermostat provides consistent performance across diverse residential environments. The package comes complete with a resistor assembly, mounting screws, and wall anchors, making it an efficient OEM replacement thermostat for technicians focused on quick, reliable system restoration.
Key Benefits for Contractors- Simplified Installation: The snap-action mechanism performs regardless of mounting level, saving time on rough-in or retrofit calls.
- Broad Compatibility: Standard 18-30Vac rating and SPST action make this a versatile 24 volt heating control for furnaces and boilers.
- Rugged Reliability: Heavy-duty bimetal sensing element maintains +/- 3-degree accuracy without electronic complexity.
- Full Kit Included: Box contains the mounting plate, hardware, and resistor assembly required for immediate field commissioning.
Is the Resideo T812A1010 compatible with millivolt systems?
No, this specific model is designed for 24 Vac applications. For millivolt or 750 mV systems, the TS812 series is the correct technical selection.
Does this unit require batteries for operation?
The T812A1010 is a mechanical snap-action device that draws its 18-30Vac power directly from the R and W terminals, requiring no batteries to maintain settings.
Can I use this for a cooling-only or heat pump application?
This is a 1-stage heat only thermostat. It lacks the Y or O/B terminals necessary for compressor control or reversing valve operation.
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.
