Best Tankless Water Heater Installation in Charlotte NC

I don't even give this company 1 star. 2 years ago we had our water heater replaced by IRV. I had to pay some code upgrade charges which I found out later were bogus. Then they charged me twice. I had to FIGHT with the office clerk and the owner to get a refund of MY OWN MONEY! Then 3 months ago it went out. I called them because it was under warranty. The technician came by and said we needed to have it cleaned. $425!!! Then he said the pan underneath was too small and the pilot light couldn't breathe. So he says we need to pay to have a bigger pan replaced which THAT WAS THE PAN THEY INSTALLED. We would of course have to pay to replace the pan at $79 an hour which meant they would also have to drain and move the heater which would take 3-4 hours. When I denied the cleaning service they cut me off. They would not call me back or even fix it so the pilot light would stay on. I ended up calling the manufacturer of the heater and the sweet lady there showed me how to reset it so the pilot light would stay lit. We also found out the control panel was installed incorrectly and we were not getting proper hot water. My husband was able to replace the pan. I dare them to send me a bill. I will report all of this to the BBB as well with pictures. Stay away from IRV!