My furnance is about 44 years old (coleman).ha....! It is runing good now, only thing is I am paying about $375 a month just for gas in winter. But In summer it comes around $55. because we only use hot water. oh ya, my house is about 2000-2500sq feet.
My question is, Is there anyway doing maintaince for furnance and reduce my gas bill? or do I really need to buy a new furnance? Whats the right BTU for 2000-2500sq feet house? I would appreciate If anyone could give me some information or sugestion.
Thank you very much
Rinchin