The customer in this particular troubleshooting situation is somewhat savvy about his 12-year-old gas furnace. When he calls for service, he tells you that when things got very cold in the house, he ...

Dear Jim I am on a fixed income and my heating bills were very high last year. Are there any things that I can do to tune up my old gas furnace myself to make it operate more efficiently and quietly? ...

Dear Jim My furnace is old, but it still seems to heat well. My budget is tight, so I need to keep my utility bills low and the furnace working for a long time. Are there any simple tune-up checks I ...