Hi everyone,
A long while ago I had the NPE 240A installed. It's handled my hot water needs quite well, considering I'm in a situation where there are 3 bathrooms, 2 dishwashers and 2 washing machines.
My boiler is shot, and I had someone come out to look. The person who came out to look recommended getting the NCB 240/110H. I had considered the combination boiler before when The NPE 240A came out, but when I did research then, it didn't make sense. Since then significantly more baseboard has been added and the 240H has a lower (13K BTU vs. 18K BTU) minimum for heating.
With that being said I decided to measure all of the baseboard and follow some of what I've read on here to decide.
I have three zones:
Zone 1 - Living room area: 84ft of baseboard + 5ft of what seems to be something else (not a radiator), but maybe an in-wall cadet?
Zone 2 - Bedrooms: 83ft of baseboard
Zone 3 - Basement + apartment: 55ft of baseboard.
Total: 232ft of baseboard. Assuming 200 btu/ft @ 120F this should give us 46K BTU/hour. Well above the minimum that the 240/110H needs of 13K. It seems the only potential issue is if the basement zone is running by itself. During the winter, the basement is naturally cooler so the basement is more likely to be run. However, from experience usually at least one other zone is running so at a minimum we're looking at 55 + 83, or 138ft of baseboard active at any given time.
In my situation does it make sense to get rid of my NPE 240A and (dead) boiler and get this combi unit? Apparently it was released just last month so I haven't seen many reviews. I'm also willing to add another 10-15ft of baseboard in the basement as there are a couple rooms that could be warmer. My zip code is 02169
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