That's pretty crazy. How are you paying $1200-$1500 with gas heating??? For your size house it should be $400 tops.
Something is definitely wrong.
Well this December, my water bill was at 200, electricity bill was pretty high at 400, my gas bill was also high about same as my electricity. Usually i blame the Christmas lights and just my tendency to keep lights on in my house. Summer time is usually expensive for me because i have the AC on all the time. How much are you spending on your utilities , anyways?