Honeywell’s TH5220D1029 FocusPRO 5000 Premier White non-programmable digital thermostat delivers precise comfort control for natural gas, LP gas, oil, electric and heat pump systems in residential or light commercial applications.  Designed for 20–30 Vac or 750 mV heating systems, it supports up to 2 heat/2 cool conventional equipment and up to 2 heat/1 cool heat pumps, including warm air, hot water, steam and gravity systems.  Heat-Off-Cool-Auto-Emergency Heat switching and Auto-On fan control simplify seasonal operation, while auto or manual changeover keeps comfort steady in changing weather.  A 5.09 square inch backlit display shows room and setpoint temperatures with ±1°F accuracy and 40 – 90°F heat / 50 – 99°F cool ranges to maintain stable comfort. The TH5220D1029 mounts horizontally in a clean Premier White finish, operates in 5 – 90% non-condensing humidity, and runs on battery, hardwire, or both for dependable performance.