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Proper installation of mod con
It seems as though every time there is a problem with a mod/con boiler it seems to be blamed on improper installation. I'm having a Lochinvar Knight 085 installed along side a new indirect water heater shortly and I'm wondering if there is anything I should make sure is present. After spending all this money I'd hate to have someone else come inspect the installation only to tell me it was done wrong.
I have seen people comment on the necessity of a LLH, magnetic filter, acid reducer, etc... what else should I be on the look out for?