Ok, I did a search and realized that either the question and answer session rolled out of the history file or I'm the only fool who can't decide based upon the specifications issued by manufacturers. So here goes.... My solar/battery backup capacity is designed to run my freezers (2 at an estimated 760 Watts/Day each) and well pump (1/3 HP). Since all are motor loads and run intermittently, there's a pretty high surge frequency of startups. Everyone must have noticed that modified squarewave inverters cost far less than pure sinewave jobs, but I read that the modified squarewave units don't handle motor startup surges as well as pure sinewave units. Is there anyone who has some experience in this area who could recommend both type and size since i'm in the market to purchase one inverter to 'do-it-all' rather than have a collection of small individual units. Did I mention that I'm basically uh... frugal (Ya that's it.... Frugal!)? Thanks!