"udarrell" wrote in message
...
My 1937 two story home only has 60 amp service. The wiring to the lights
and outlet receptacles is all two wire, no ground.
Electric water heater and electric range plus two window A/Cs but it
handles all the loads okay

The Main and Range fuses are all 60 amp. I need to take the cover off
and see if the water heater and range are on the Range circuit.
If it is wired that way it would provide a total of 120 Amps through
those two circuits and 60 amp fuses.

I need to total the amps with water heater and all elements of the range
drawing current.

One large and one small surface element are burned out and I don't need
them, so did not replace them.
Would you have the entire house rewired with 200 Amp Service? - udarrell


I would do a load calculation then decide if I needed a 200 amp service.
There are a huge number of homes that are running on 100 and 150 amp
services, mine included.

Adding up the fuses is not the right way to figure load. Call your utility
and see what the highest kwh that you have used. Find a NEC book from any
recent year and read the section on residential services, it is not that
hard to figure out.

The serving utility and the AHJ will have regulations that you will have to
follow to make the change. You may have to move the service location.
Which can be a real pain in the ass.
You may be required to upgrade your bathroom, and kitchen circuits when you
do this.