Central Water Heater Vs Individual Water Heater

This morning I could only use half the pressure i normally use due to the tank water temp being so low, even with the 4100w unit it was not enough to heat a full flow shower.

This is the reason I only use 6kW units in all my condo units in Bangkok, for those few weeks of cold spells at the end of the year.

Ouch you are talking about retrofitting a 30 amp circuit - which few on this board would be able to do.

When I built my house I knew I was gonna have 6 aircons, storage water heater, 4000 watt oven & my 4 mm2 dedicated hi-fi circuit so I ordered a 30/100 power meter & wired accordingly