I have gone to use it this past week and here is what I found.
As you can see I have a power switch and a fan switch. This stuck me as odd because I either have to leave the fan running 24/7 or come in and turn it on and off every time I want the heat.
I looked at my thermostat
and found it only had 2 wires
The furnace is a Lennox 180DF.
Fuel Type: Gas
House style: single story 109 year old Craftsman i believe
And the thermostat is a Honeywell RTH7400
I have tested to see if the thermostat can control the fan at all and it can not. I tried leaving the fan off but the furnace on and see if it auto started. The furnace kicks on and I hear what sounds like it might be a fan but it is not the main one.
I do not know much about furnaces and have not been able to figure out is this is a normal situation or not.
I would like to know what I should do.