Bought 2, one as gift. Biggest rip-off I ever expe...

Bought 2, one as gift. Biggest rip-off I ever experienced. Technician looked at my furnace 10 or 15 minutes, said carbon monoxide was at high level and I needed a new furnace, I said aren't you going to at LEAST clean it? Said CAN"T, crack in heat exchanger, but will have a company sales rep come by to talk about new furnace. Called another company, inspected (with remote camera as well), said furnace is fine, heat exchanger looked good,no cracks (even showed me), finished tuning and furnace has ran well all winter. (And we're all still alive!). This was back in December. Needless to say, I'll eat the gift card bought, wouldn't do business with Genz-Ryan (no pun intended) if my life depended on it!