It would be more efficient to get a proper 24Vdc to 120Vac inverter.
Another possibility: Put in an additional 12V battery which feeds the 12V inverter. Use a 24Vdc to 12Vdc converter to charge the 12V battery.
Thank you Mike for the quick responce
your right it would be better to get the 24v to 115v inverter, but they are expensive
I stole my 12vdc to 115vac 3500watt/7000watt max for $160.00 on ebay
they sell for $1800.00, the 24v/10 amp used solar panels i stole for $100.00 each, i have 3 of them, and my 12v/24v/ 45 AMP solar panel regulator, i stole for $45.00 on e bay
I am just trying to get a solar system together for Dirt Cheap
LOL, and was looking at the possibility of Paralleling 2 - 60amp/24vdc to 12vdc converters to give me 12vdc/120 amps to feed the 12v to 115 volt ac inverter, I can get those dirt cheap too
LOL, I have seen 100amp 24vdc to 12vdc converters, but those run like $2500.00 + each , I like your Airplane avitar, is that a 182 cessna, the pic is a little small, I build and fly E Power RC Aircraft, I have been doing that for over 40 years
if your into RC, Join us at Wattflyer.com
Take care, Chellie