 I was wondering your opinion on multi-split air conditioners for a home. Would you go with that or back to an outside unit? Well, hey, Doug. Thanks for reaching out to the Money Pit. Here's the situation. You can use either system to cool your house. Today, split ductless is very, very efficient. And especially due to the inverter technology, they really run more inexpensively than ever before. So certainly that's an option for you.