Reply To: Plastic tank water heaters

The Tank Plastic tank water heaters Reply To: Plastic tank water heaters

#14036
energyexpert
Participant

WH manufacturers typically use wire with MTW/AWM rated insulation so it is approved for 105 C. 5500 watts draws 22.92 amps so manufacturers would probably only use #12 vs. #10 AWG but #10 is OK.

Most thermostats and ECOs are rated at 6000 watts so you are OK there too.

Changing from 4500 to 5500 watts is an increase of 22.2% so time to heat a given mass of water will decrease 18.2%.

David

Water Heater Rescue

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