I am facing the same venting issue. Had a Japanese Takagi i installed 2009 and control board went out and no replacement available. I also can not get any explanation why 4" venting would be a problem other than CSR stating i should only use the recommended diameter without any reason other...
Takagi tankless that i installed in 2009 was from Japan. Control board went out and A O Smith who bought US Takagi and does not stock replacement so i'm going to have to replace an otherwise perfectly good water heater.
I decided on a newer Rinnai condensing model that can use 2" pvc for...
It looks like you're using an ad blocker. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. If you'd like to support the site, please allow ads.
If any particular ad is your REASON for blocking ads, please let us know. We might be able to do something about it. Thanks.
