GordonThree wrote:
phemens wrote:
Just to clarify, I only run the HW heater off inverter in the afternoon if my batteries are topped up and I can leverage all my spare solar, which is usually the case. Typical overnight usage on batteries draws down to 75% or roughly 150 amp hrs consumption (running residential fridge, TV, Media player, NAS, coffee maker and LPAP), on a typical day I'm back up to 100 by 1 or 2 pm. Saves on LP when I can.
Free hot water sounds great!
Does your charge controller have a dump load / aux load output? Maybe you have it setup that way already, using a relay to switch electric on and gas off on the HWH automatically when hitting 100% SOC?
No real need to automate anything, we make very sporadic use of the HW heater, essentially just for showers, and we don't do that every day (sometimes I prefer to use a solar HW heater, the one that's in a bag, it's surprising effective - also use that for dishes mostly). The RV heater only goes on if I know we're going to take an indoors shower in the evening.
