I want to know how many solar panels to use to power my AC and Water heater
you cant use solar panels to power your house, it would take more than you can afford,and space to mount them and all the equip required to hook it up. what they don,t tell you is you need a Battery bank [24 to 48 batteries], deep cycle a inverter ,[one that will convert 2 volts to 0, at the wattage you need ] a transfer switch, rated at 00 amps wiring, a 45 watt panel is around $300
You can power all your house with solar panels, you can follow some simple video instructions to build all your solar panel and solar power needs manually for your home electricity..