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Discuss Should I upgrade a fuse switch box for my furnace? in the American Professional Electrical Advice Forum area at ElectriciansForums.net

Ramblin Rob
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Hello,
Newbie to this forum here in the U.S.

My 1970's house has a main/sole electric panel with a dedicated 20A circuit breaker for the furnace.
In the next room, 20 feet away, there is a small junction box with a switch and 15A type T fuse controlling the furnace.
I'm guessing the switch box is there right next to the furnace for convenience and possibly a code requirement.

In the one year I've lived in this house I've never needed to replace this fuse.
But now I'm thinking I either need to keep a spare 15A T fuse on hand for when it someday blows, or possibly upgrade this switch box to a circuit breaker type technology.
The furnace itself is fairly old and will likely need replacing in the next 5 years or so.

What are my options? What is the best recommended practice in this situation? Why is this switch and fuse even here?
 
TL;DR
Is there a better product that can replace a single fuse switch box?

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