mutiple inverters vs. single inverter?

Multiple inverters can save battery reserve if using a larger main inverter which has high self consumption, for example my inverter uses ~40W, the only loads at night 6pm-6am, are the refrigerator (inverter type ) 50W intermittent and a few 13w led lights. What I came up with is feeding a second 300W inverter and the main inverter into an automatic transfer switch, the larger being the prime source, then programed an inverter block between these hours which transfers to the standby source, small inverter, the result is a dramatic reduction in the depth of discharge. The automatic transfer switch cost less than $30, batteries are much more expensive, depending on equipment, there  may be more complexity involved and naturally the larger loads must never come on.

Thick8 said:

Do you guys have different inverters for different zones of your house? I'm currently taking the kill-o-watts around the house to get accurate measurements of what draws what. Other than the pool pump (120v), dryer (240v), sprinkler pump (240v), and 4 ton A/C unit (240v) we don't use a lot of power (will be more accurate tommorrow). The water, heat, and stove are all gas.

Looking at 48v to 120/240v systems.

If you are even thinking of powering the loads you mention, a small inverter would just be spending time on something that some might say is time wasted.