Welcome! Here are the website rules, as well as some tips for using this forum.
If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
I was able to put my hands and eyes on a Viessmann CU3A today. Wow! Easy to service, 13.5 gallons of water in the smallest model, and what looks like a bullet-proof HX and burner. It's in my shop now and will be installing my first one before long. I'd love to hear what others think of it.
Tell me I can't, and I'll show you I can.