So, for worst case, I probably need a new meter...wonder if this is a free thing, or will cost me if needed.
Waited on hold with the utility company for awhile, and decided to send them an e-mail instead. See how long they take to respond. I'll let you know what they say. the original unit probably was marginal if everything was firing on full. Wonder how well these things regulate when they get older...mine is now probably close to 30-years old. I don't seem to remember them ever changing it, but they could have. Certainly looks like it's been there for 30-years!
the original unit had a 60K BTU boiler, fixed burner (my new one is modulating), a WH at probably 18K or so (it's gone, replaced by an indirect), a basic stove with maybe 35K, and while plumbed for a dryer, no dryer installed, so 175 cu/m probably worked okay. My stove, boiler, are both higher output capable, and added a big NG grill (but lost the WH) - I've had a dryer all along, but recently got a new one. Not really sure if this dryer uses more or less than the old one...guessing that part's proably a wash.
I know each appliance has it's own regulator, but how would they function if the supply pressure dropped?