Need help with a New-ish Boiler
Hello everyone, this is my first post and I’m seeking some advice on a problem I’m having with a newish boiler. Here’s a little back story:
I purchased my first home in Feb 2019 in Windsor CT. When we purchased the home, the source of heat was oil. Naturally, when the weather got warmer, we signed a deal with CNG to run a natural gas line to our home for free. The oil boiler we had was an Ithaca/Utica boiler that was manufactured in 2015, and installed in the home in 2016. While we got a bunch of quotes for new H.E boilers, we decided to change outr the burner for a Carlin EZ gas burner. The two primary reasons for this was costs ($3200-$1000 rebate) and that we were told the boiler we currently had was essentially new and would last 20+ more years. The conversion was completed and signed off by the town in June.
Now fast forward 13 months (exactly 1 month after the warranty on the Carlin EZ burner expired), and I suddenly had no hot water. I went down stairs and saw that the ez burner displayed a BV or blocked vent error. I called the HVAC company, they came out, and after three hours of diagnostics (and $264.00 later) they said it was due to my chimney not having a liner and also having a blockage (he didn’t go on the roof). He reset the error code and told us not to turn on the heat/hot water until we got the chimney looked at because our house would “explode”. Anyway, I got the chimney inspected twice and a liner put in for $1500 (the chimney guys said there was no blockage but there were some cracking in the terracotta liner). Everything seemed great. Two weeks later...today 7/27/20....I wake up to no hot water and the same error message. I called the HVAC company, they come out, and change some vent settings to minimize the backflow. They didn’t charge me this time around (second visit within 2 weeks) but they also couldn’t garuntee that it was fixed. (Their words were “fingers crossed”). They don’t know why it’s happening. I guess my question is that if it fails again...they may say the burner is faulty but not under warranty. At that point I could either get a new burner for the boiler or get a whole new boiler. What should I do taking into account that the boiler I currently have is only 5 years old? There are some very low interest financing options to get whole new systems at the moment. Right now everything is working because it was reset, but I don’t have confidence that it’ll stay this way. Should I get another HVAC company out of it errors again? Thanks in advance