This is an amazing device. It is the old furnace thermostat which has been on the dining room wall since we bought the house back in 1971. I am assuming it was installed with the oil burner. My guess is that all happened in the 1950's or so. This was manufactured by the White-Rogers Company, which fortunately is still in business. Here is what is amazing - this is an entirely mechanical device that works by having a "bimetal coil" which coils or un-coils depending on the temperature, and that in turn opens or closes a single contact, which then tells the furnace to start or to stop. This is a mechanical device which has functioned with no problems, ever, for at least SIXTY years! This mechanical wonder was replaced with a modern digital one, when we had the new gas furnace installed last month. Somehow it seems a shame to replace something that has served us so faithfully for all these years.
4 comments:
"If it ain't broke, don't fix it"
New is not necessarily better... Thanks for the explanation. bsk
Sounds like you're channeling my dad. Resist the urge to keep it.
Polly
Polly! You are SO funny! You also are reading my mind! I was telling myself today that if I had really good photographs of it, I wouldn't need to keep it!
VERY INFORMATIVE ARTICLE. Thanks
www.cosmopolitanmechanical.ca
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