Using two fuses to create double-pole for 240v
Hi all -
My house still has a fuse box. It's got two main pull-outs: 1 for the main cut-off, 1 for a major appliance (stove, in my case). It then has ten screw-in Edison-base fuses for the 110v circuits, three of which are unused.
I am adding an electric hot water heater (been using a non-electric range boiler until now), and need to wire in a 220v circuit. Can I use two of the unused screw-in 110v spaces - one for each of the hot legs - to accomplish what a double-pole breaker does in a circuit breaker box?
Also, what happens if only one of the fuses blows?