I also had Equitable Heating service my furnace and they told me the exact same thing as in other reports --that the heat exchanger was cracked and the whole thing needed to be replaced. This was 2 days before Thanksgiving and they turned off our heat in 20 degree weather (even with little babies in the house). We decided to get a second opinion while we waited to get an appointment with them and another company came the night before Thanksgiving. They were extremely upset about the situation. They checked the CO levels in our home (our... read full review »