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Natural Gas System sizing and expansion....
I have an Elster Ac-250 meter, looks pretty new, so I gather this means that I have 250K BTU capacity with a 1" coming from the meter.
This 1" then leads to a larger sized pipe, looks at least 1 1/2" (not sure how to convert circumference to diameter). This larger pipe leads to the boiler room (maybe 25'-30' from meter)and tees off to two 1/2" pipes, one going to my Lennox Elite G61MPV (75K/110K 2 stage) furnace, the other to two WH hooked up in series (in series for water distribution) (40K BTU each). The 1/2" going to the WH's first goes to one, tees and connects and continues to the second (i.e. the gas line is hooked up in series also). The 1 1/2" also continues all the way to my laundry room and terminates in a 1/2" coonection, but is not hooked up to anything at present (maybe another 30' of 1 1/2" line).
I am proposing to add a 54K range (i.e. cooking surface) to the system in the kitchen which is directly above the boiler room, so maybe 10' at most. From what I can tell this should be fine with the current lines and gas meter that I have.
My question, however, is whether I can connect the range in series with the 1/2 line that the WH's currently use. The reason for this is space issues for the installation and the fact that the 1/2 for the WH's is right below and easily accessible. So tyhis 1/2" line would run the two WH's and the 54K range.
If I HAD to I can access the 1 1/2" line, but it's all very tight there and I might have to remove some ducting to get in there and do it up right.
Any and all help is greatly appreciated.