Using a mini-split to supplement central air in a poorly insulated house

Climate zone 4a- NJ. I have a brick Cape built in the early 1940s that has no insulation in the walls. A couple of years ago we had an energy… Climate zone 4a- NJ. I have a brick Cape built in the early 1940s that has no insulation in the walls. A couple of years ago we had an energy…Read MoreGreenBuildingAdvisor