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Reload this Page Tankless water heater natural gas question (installing, pipe, remove, pressure)
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Old 05-18-2015, 04:10 PM
 
2 posts, read 835 times
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I am installing a rheem 9.5 gpm tankless water heater at my house in NY. The natural gas is 3/4 from the meter to the inside of my house. From there it is a foot run which gets reduced to 1/2 for an old 40 gallon water heater that i removed. Can I leave the 1/2 pipe and place a 3/4 bell reducer to 1/2 and run all my 3/4 pipe to my tankless water heater ?
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Old 05-19-2015, 10:05 AM
 
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If you tie the W/H run in at the meter outlet, the sizing/pressure drops/code compliance should take care of itself. You'll never regret doing it right the first time.

Will the meter accommodate the extra 160k demand? Not all do.
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Old 05-19-2015, 11:28 AM
 
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Thank you btuhack!
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