New range: whole house BTU line capacity calculation?
Is there a maximum NG BTU line capacity a house cannot exceed due to main gas line pressure dropping? We live several hundred feet above see level near our Capitol.
I'm about to switch out an older four burner 36" cooktop (estimate 48,000 BTU's tops) to a six burner 96,000 BTU with convection oven which requires the same 3/4" pipe.
From the main gas line to the house basement where it comes in, first off (3 feet away) is the approximate 60,000 BTU water heater, then off the main line (5 feet further) is the 120,000 BTU furnace. Off this furnace feed is the smaller 3/4" gas line to the current cooktop (2 feet to left wall and up 4 feet or so through kitchen floor). Finally coming off after the gas furnace is a smaller gas line to an outdoor NG grill with two burners, no idea how many BTUs (longest run, probably 15 feet and present when we bought the house). We've never had any problems with any suggestion of inadequate gas pressure.
Do you see any problems with changing out the gas cooktop (48,000) BTU to a higher BTU NG demanding 36" pro range w.r.t. minimums and maximum and maximum pressure to the regulator? Gosh, I tried the old blue tape method of wrapping the gas pipes to get their circumference so as to guesstimate their pipe diameter and got part way done but never finished my amateur calculation of whole house load. I don't think I have a caliper but may and I'd have to refresh myself on how to use it.
Thank you for general guidance and comments on this matter. Am I limited to how much gas I may draw or limited by pressure minimums? In short, do you see a major problem here I'm overlooking in getting this pro range from a gas pressure load point of view?
Thanks as always. Harriet Homeowner
This post was edited by SparklingWater on Mon, Jan 28, 13 at 23:14