NEC 2005, 422.13
"Fixed water heaters less than 120 gallons shall be considered a continuous load"
This infers when working out the demand to dwelling feeders that the water heater component must be taken at 125%. Is the 40% derating factor of 220.82 applied to the 125% of the water heater or must the feeder be rated for the full 125% of the water heater?
"Fixed water heaters less than 120 gallons shall be considered a continuous load"
This infers when working out the demand to dwelling feeders that the water heater component must be taken at 125%. Is the 40% derating factor of 220.82 applied to the 125% of the water heater or must the feeder be rated for the full 125% of the water heater?
