Old fuze box feeding Hot Water tank
#1
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Join Date: May 2018
Location: Canada
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Old fuze box feeding Hot Water tank
I want to replace my HWT to 50 gallon which is a 3000 Watts Whirlpool. I want to know if I can use the existing 2 x 15 amps screw-in fuse to feed it. Not sure as this a total of 30 amps.
Is this too much?
My panel will be upgraded in the next month or so but I need toi install a new HWT soonest.
Norm
Is this too much?
My panel will be upgraded in the next month or so but I need toi install a new HWT soonest.
Norm
#2
Member
2x15 is still 15 amps. This is because each 15amp fuse is on a 120 volt leg. You need 2 legs to get to 240 volts.
It is common for water heaters to require a dual 30 amp breaker - essentially 2 x 30 fuses. Also needs 10 gauge copper wiring to go with it.
It is common for water heaters to require a dual 30 amp breaker - essentially 2 x 30 fuses. Also needs 10 gauge copper wiring to go with it.
#5
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No. Each fuse is on a 240 volt leg.
When I hear 240 volt leg I think high leg delta or at least a commercial service.
#7
It's pretty rare to find a 50 gallon water heater with only a 3kw heater. That water heater would be slow to recover. Most are 4.5kw as mentioned.