Honeywell Thermostat Rth7500d1007 Manual -

furnace making room hotter than setting thermostat is set for - i am homeowner and have a lenox pulse21 force hot air furnace fueled by natural gas it was put in when house was built around 1992 we recently turned our heat back on as cold weather set in and i noticed one morning that our living room downstairs where the thermostat is we also have a thermostat upstairs and thus 2 zones was very warm 70