From: amdx@knology.net   
      
   On 2/16/2021 2:55 PM, Olden wrote:   
   > Best to ask here or ?   
   >   
   > My gas furnace is a Holly.   
   > It has an old mercury two wire thermostat.   
   >   
   > I want to change the thermostat so that I can set the same two   
   > temperature ranges, day / night, for every day.   
   >   
   > I do not understand thermostats.   
   >   
   > The local store does not know how to advise me.   
   >   
   > Thermostat suggestions please and maybe a little tutorial.   
   >   
   The easy way is to have two thermostat and a switch. Have one adjusted   
   for day and the other for night and   
      
   day/night switch to go between them. It gets more complicated if you   
   have an air conditioner to deal with.   
      
      
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