Horrible experience! Buyer beware. We had Genz Ry...

Horrible experience! Buyer beware. We had Genz Ryan refurbish our furnace November 2015 to the tune of $2,000+ (told it was almost as good as getting a new furnace and was what the tech recommended we do). We were told it had a 2 year warranty. We ended up having to pay a $99 service call a little more than a year later and they did not even fix the problem. We were without heat January 2017. The technician who had refurbished our system came out and told us the problem was due to a vent being blocked by snow (before he even went outside to look). Within 3 hours of him leaving we were without heat again. The second tech came out and basically told us everything was wrong (although he really could not provide us specifics). The repairs he recommended ranged from $2,000 to $25,000. He said he could put a "bandaid" on for $700+ but he would be out again in a few days. Before making a decision we decided to call our Home Service Plus Warranty. The tech was out within 15 minutes and the problem was fixed in less than 5 minutes. We have not had any problems since he was out. He told us there was a drain pipe that was plugged. This should have been covered under our Genz Warranty. I've made multiple attempts to reach a supervisor at Genz but have yet to get a call (Natalie tried me twice but has not tried since my last 3 messages were left).