most efficient heating source?
We will have to be replacing our furnace this year - its about 20+ years old and is terribly inefficient. We use an oil heating system. My husband and I are currently researching what heating direction we should head in. Solar heating would be ideal, but its just not in our budget, despite the fact that it does pay for itself in the long run - unless any of you know of any grants out there for solar pannels. So, other then that, what would you recommend? Our home is a 1979 2 story colonial, aprox 3000 sq ft. We live in south central PA so our winters while cold and sometimes snow filled, arent as bitter as some places.