I appreciate the creation of this forum. I live in Houston and can say not only was the prolonged freeze incredibly rare, losing power for 30+ hours in 10 degree weather was a new life experience for me millions of others. I came out better than expected but have been replacing broken copper for 3 days. It is quite the party here now, and fittings or pipes have been stripped off the shelves. At least one DIY guy I know has raided the auto parts stores for radiator hoses and hose clamps to make do. I have some fittings and pipes and have been able to share and help 3 other houses get their water back. Plumbers here are GODS and incredibly appreciated.
My questions - I have a Bosch 1600h tankless (no longer available) in a small rental house. The heater has been maintained and has worked really well for almost 10 years. It froze and is leaking badly internally. I haven't opened it up to try to figure out where or whether it might be worth trying to fix myself. Is it worth it or should I just replace at this point?
If I replace, does anyone have recommendations for a similar unit, or a good replacement for it? I liked the Bosch because it didn't require electric to operate, was easy to install and used a 6" type B vent. I can do whatever it takes to get a new unit installed but am looking for easiest and quickest so my tenant can get her house back.
I called Bosch and they recommended the 830 ES NG. Any thoughts on that are very welcome.
One other question - there is also a shower valve, American Standard "Symphony" that now will not shut off completely. I am thinking this is probably from the valve itself freezing solid, and perhaps something expanded which is letting water through. I am hoping this might have a cartridge that I can change out from the front by removing the front plate. Is that the case? Or will I have to replace the entire valve unit? Pretty limited access from behind, so I might have to tear out tile to do that.
Many thanks