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Here is link to Westinghouse manuals:
Woods-timers-and-manuals
Index of /pdf

The 28457 is dawn-dusk timer... but product numbers and designs change rapidly... copy following link and check if...

There are two designs for Westinghouse 28441. One with 5 buttons + reset, and other with 6 buttons + reset.
One timer has on and off buttons for override feature, while other has mode button for...

Shut off is usually located above water heater on cold water line. If there is no shut off at water heater, track back on the cold water line to find main shut off for house. The main will be on the...

Look at the water heater label. Look for Volts and Watts.

For example if new water heater has 5500 Watt elements and 240 Volts, then water heater draws 23 Amps. 4500 Watt elements and 240 Volts,...