Tag: Honeywell RTH1120

Honeywell RTH1120 Non-Programmable Electronic Thermostat   Introduction The RTH1120 non-programmable thermostat can be used to control:  a gas, fuel oil or electric furnace – 2 or 3 wires  a central air conditioner – 2 or 3 wires  a hot water system with or without pump – 2 wires  a millivolt system – 2 wires  a central…