Honeywell T8775A1009 Premier White 1Heat Stage Digital Round™ Thermostat with Manual Changeover for 24VAC Gas or Oil Heat Systems Only

- Item #: BCI527427
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Ships Tuesday, November 25th


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Premier White 1Heat Stage Digital Round™ Thermostat with Manual Changeover for 24VAC Gas or Oil Heat Systems Only

  • Large digital display with one-touch backlighting.
  • Set point retained in memory in the event of a power outage.
  • Compatible with:
  • 24-volt gas/oil and electric heat systems.
  • Single-stage heat pumps.
  • Hydronic heating.
  • Electric heating.
  • High Efficiency Warm Air.
  • Standard Warm Air.
  • Steam.
  • Gravity Systems.
  • Easy to install.
  • No batteries required.
  • Subase and thermostat are conveniently packaged together.

Additional Honeywell Links

Our SKU: Honeywell T8775A1009

This product is listed under the following manufacturer number(s):

  • Honeywell T8775A1009

*Denotes a finish or option that has been discontinued

Honeywell T8775A1009 Product Specifications

Specification Sheet
Installation Guide
Control Type Digital
Depth 1.25
Display Size 2
Hardwired No
Height 3.8125
Humidity Sensing No
Product Weight 3
Programmable Yes
Settings 2
UL Listed Yes
Voltage 20, 30
Width 5.375

Installation Resource Center

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Honeywell T8775A1009 Reviews

Rated 5 out of 5 by from low voltage thermostat Great replacement thermostat for the old round style Honeywell. Digital display is easy to read and back light works well with large easy to find button. Installation is a snap. Make sure to read instructions and set thermostat for the type of system you have and set switches accordingly for first time no problem installation. Great product. It has been working flawlessly for me for months now. I need to order another for another zone in the house. Stay warm.
Date published: 2013-11-20
  • will this work with a Rheem RPND O43J heat pump

    A. The Honeywell T8775A1009 is not designed to be used with a heat pump.
  • What is the adjustable temperature range?

    A. The Honeywell T8775A1009 temperature range is 40-90 F.

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