The gas company in my area offers a rebate of $600 on any 90% unit which more than offsets the difference in price charged by the heating contractor for the two. I`ve read that the 90% models are prone to more maintenance problems due to their sensitivity. Is there any real good or bad choice for choosing one over the other? The units would be Goodman and Rudd models ( budget priced). Stephen
- posted
20 years ago