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Hello everyone. Recently I posted about repiping my combi boiler and I have some questions.
I was just in my basement looking at the combi only to find there are some connections leaking again. This happened before and I replaced the gaskets and piping about 4 months ago. Initially I thought about replacing it with a different combi or a mod con, indirect and a buffer. I already spent a lot of money on this failed equipment and a botched install and I want to know if there is anything else I could do. The combi takes care of two showers and two circulator zones. One zone is around 7000 BTU and the other is 2 toe kicks totaling 24000 at its highest on 180 water. I’m also thinking of adding copper fin tube to that run as well.
What about using a cast iron system like burnham esc with ODR? I’m guessing you can’t put a buffer tank on that so it’s likely to short cycle especially if I sized it for my entire house @ 2200 sqft. Could a gas water heater be used instead for those two zones?
I’d like to plan for the future. Currently I use steam and I’m concerned that should a radiator or behind the wall pipe leak, I could run pex to that room along with baseboard.
Thank you for your time.