Typical RV Propane Hard Line Sizing

Question

Question:

Hello, I’m useing a modine HDS 45000 btu heater, with 30 ft of gas line with a 10 ft rise. I was gona use 3/4 black pipe from the tank to the heater, I notice the regulators are 1/4” inlet 3/8” outlet. Am I over kill on my pipe size ? Thanks

asked by: Craig S

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Expert Reply:

Gas lines on RV's are typically 3/8" OD with a some being 1/2" OD so 3/4" pipe would likely be a bit overkill for your needs. The MB Sturgis Vertical 2-Stage Propane Regulator # 108220 you referenced does have a 1/4" Female NPT inlet and 3/8" Female NPT outlet so you'd have to check with your local hardware store for an adapter fitting/hose to go from these to 3/4" pipe.

expert reply by: Kevin C

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Answer 1

I understand what you are saying and I think you are on the right track. A bit more length from the pig tail would allow the rubber line to be able to loop so that it could tuck down better. We have 15 inch pig tails like part #100473-15-MBS or even…

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Answer 2

Are you sure about the 165/80-13 tire size? I don't show that as a currently available tire size, could you have meant a 185/80-13? In any event, a 175/80-13 tire measures 24 inches tall x 6.9 inches wide which would be slightly shorter at about…

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Answer 3

So it is actually the hub that determines the wheel fit, so I did some research on your 13' Scamp trailer and found it has a 2,200 lb axle. Hubs for that size axle do fit 12 inch wheels, so you can absolutely use a 12 inch wheel like the Steel…

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Answer 4

A direct replacement for your Winntec Model 6020 is the Automatic Changeover RV LP Gas Regulator #37207-30395 as the BTU rating is compatible and they have the same fitting sizes.

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Answer 5

Yes, you'd just need to reach out to a qualified welder and have them weld on spring seats like part #TRSS300 to the top side of the Trailer Axle Beam with Easy Grease Spindles #e45GR. It's super common to do for people who have an underslung…

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Answer 6

For a single tank setup the regulator you would want is the part #108220 which is rated for 400,000 btus. The regulator you mentioned does not have enough BTU.

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Answer 7

Since a fireplace is a low pressure application, you could use a single stage regulator like #CAM59013, especially if you're speaking of a small fire-pit type fireplace with the hose from the tank run being less than 20 feet or so. However, if…

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Answer 8

12 inch water column is standard for LP low pressure propane so for a regulator the #108220 would work great as it is an LP regulator capable of 400,000 btu/hr. Now the longest supply hose we have is 12 feet like with the part #37207-31365 which…

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Answer 9

The propane regulator I recommend for your 100 lb propane tank is the MB Sturgis Vertical 2-Stage Propane Regulator part #108220 which will need to be mounted in a vertical position. In order to then attach this regulator to your 100 lb propane tank…

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Answer 10

For a 2-stage propane regulator that should work well to run your two fryers, I recommend looking at the MB Strugis Vertical Regulator #108220. This regulator features a 1/4 inch female NPT inlet, a 3/8 inch female NPT outlet, and has a maximum flow…

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Answer 11

We've checked in the past and have been told the only current landing gear motor that can be used with your Atwood setup is the part #LG-142178 which even having a lower capacity will still do a great job. The jack motor doesn't support the…

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Answer 12

Thanks for the picture of the LP requirements of your dryer. It uses a standard 10 water column propane pressure rating so the regulator part #108220 that you referenced is a good start since that is what this is designed for as well. You'll need…

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Typical RV Propane Hard Line Sizing

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