Scam! This free furnace inspection thing felt like a scam from the start. One guys shows up and he says he needs to call another guy because he wasn't sure his meter was reading correctly and that the CO2 was high. Well it just so happened that the other guy was in the area and he brought his equipment in and they found cracks in the heat exchanger and turned the furnace off. He gave me 2 separate quotes for replacement for just the furnace, one for $6696.00 that's with a discount and the other was $8869.00 with a discount. I called a local HVAC company after they left to do an inspection. They showed up today and did an inspection and said there was nothing wrong with the furnace. BEWARE of LBA, and just think of how many people would bite on something like this.