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Old 01-22-2008, 08:12 PM   #1
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Gas line for dryer


I am about to purchase a dryer, and I am leaning towards a gas model. I beleive they are more efficient then electric. My question is, in the boiler room I have a gas line that feeds the boiler, as well as a 50 gallon water heater. Can this line be tapped into for a dryer? The dryer will be about 5 feet from the boiler? Thanks

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Old 01-22-2008, 09:12 PM   #2
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How many feet is the boiler connection in pipe feet from the meter and what size is the pipe? How many btu's are the boiler and the water heater?

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Old 01-23-2008, 07:25 AM   #3
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BigMike, I will have your answer tonight. The boiler is 117,000 BTU, I have to check the water heater. Also there is a gas range as well connected to this gas line. The pipe look like 1 inc, but could be 3/4. I will confirm tonight. Thanks. The gas meter is on the opposite side, about 36ft away.
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Old 01-23-2008, 10:10 AM   #4
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Gas line for dryer


This site will help explain sizing. They don't explain friction loses from fittings however. If the black steel pipe looks like 1", it's most likely 3/4".
http://www.propane-generators.com/natural-gas-chart.htm

I don't know about efficiency (both throw a decent amount of heat out the vent hole) but gas will be less to operate.
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Old 01-23-2008, 08:48 PM   #5
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Big Mike, the water heater is 40,000 btu's, the boiler 117,000 btu's, and the meter is about 36ft away from the boiler. I see near the boiler there is a union on the gas line. I was wondering if I can tap right into it, next to where it's goes into the boiler? I have heard that the gas dryers are more efficient to run, then the electric ones. Thanks The pipe is about 1 1/4, but gets down to 3/4 by the heater and by the boiler.
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Old 01-23-2008, 09:20 PM   #6
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You need to tee off the 1 1/4.
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Old 01-23-2008, 09:44 PM   #7
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Ouch! I thought I could tee off the existing 3/4, the 1 1/4 is on the far side of the wall, Thanks Marlin!
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Old 01-24-2008, 05:22 AM   #8
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Ouch! I thought I could tee off the existing 3/4, the 1 1/4 is on the far side of the wall, Thanks Marlin!
The 3/4 is feeding both the boiler and water heater, correct? If so it's defiantly not adequate for a dryer as well.
I'd remove the 3/4 line and replace it with a 1in or 1-1/4. I'm actualyl not sure which you would need to bring over. Then tee off there with 3/4 or 1/2in for your fixtures.
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Old 01-24-2008, 07:41 AM   #9
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Marlin, I will double check it tonight, but I think the 1 1/4 is tee to a 3/4 to feed the boiler, and then the 1 1/4 is tee again to feed the water heater. I will confirn tonight when I get home. Thanks so much
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Old 01-24-2008, 07:12 PM   #10
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Can you post a pic or two ?
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Old 01-24-2008, 08:17 PM   #11
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Okay Big Mike, I looked at it today. 1 1/4 runs from the meter to about 36 feet to the other end of the house. There is a tee on the 1 1/4 pipe that changes the 1 1/4 to 1/2 to feed the water heater, the 1 1/4 pipe runs another say 12-18 inches and another tee changing the 1 1/4 to 1/2 to feed the stove range one floor above, them the 1 1/4 runs and ends about another 12-18 inches to an elbow with a reducer to 3/4 to feed the boiler. Hope this helps. Thanks so much.
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Old 01-24-2008, 09:30 PM   #12
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Remove the elbow and replace it with a tee, 1 1/4"x 1/2"x3/4" and you should be fine.
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Old 01-24-2008, 09:50 PM   #13
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Okay Big Mike, so continue the 3/4 feed to the boiler, and use the 1/2 to feed the dryer? Thanks so much. Also can a union be added, otherwise I have to take everthing apart from the elbow (3/4 to the boiler) about 3ft of piping.
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Old 01-25-2008, 08:54 AM   #14
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Is there such a tee, 1 1/4, by 1/2 by 3/4?
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Old 01-25-2008, 09:00 AM   #15
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Originally Posted by helpless handyman View Post
Is there such a tee, 1 1/4, by 1/2 by 3/4?
You may need to go to a plumbing supply to find one. If they don't have that then get 1 1/4 x 3/4 x 3/4 or 1 1/4 x 3/4 x 1 or whatever else you can find like that and use a short nipple and a reducing coupling to get you down to the size you need. Do not use a bushing on a gas line and remember you can only reduce, not increase.

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