For money savings on her utility bills, a company came out to check out my mom's home to see if it was energy efficient. They determined that installing a wall heater would be more efficient than the current type of heat that she had in her living room.
We decided to install a couple of these in the upstairs of one of our apartments, which has a forced gas furnace and no duct work in the upstairs. They work great.
Follow this LINK for directions on how to install a wall heater. And good luck with saving on your utilities bills this winter!