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Connect Low Pressure Lp Feed From Rv to Low Pressure Grill

Written By Wednesday, October 5, 2022 Add Comment Edit
Topic: running a grill off on-board LP
Posted By: labman1014 on 05/17/10 02:03pm i know this has been hacked about here b4, but my search didnt really clear anything up for me.

i was going to add a high pressure line and t in b4 the regulator until i was under my TT and discovered FR already plumbed my TT for a grill. i found a propane line with a plug in it just behind the wheels and right below where they install the outside mount for a grill.

so my question is, i use a lil coleman grill that came with my first PUP and i love it, perfect for my family. it runs off a hose to connect to a 20# tank or the lil disposable tanks. it has its own regulator. can i still use this grill off the line already on my TT or will the regulator mess it out? it would be easier to just intall quick connects at the line to grill and be set. now this grill doesnt have a way to take the regultor off. here is a link to my grill. hope this helps!!

thanks in advance!!

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Posted By: I am still wayne_tw on 05/17/10 05:10pm You can run any propane appliance from the connection you found on your trailer that does not have a regulator. Since the gas supply on the trailer is after the trailer's regulator, any appliance connected to that connection must not regulate the propane supply again.
Posted By: BarneyS on 05/17/10 05:16pm Sounds to me like that connection point is after the trailers regulator. You cannot run another regulator on your grill as far as I know because it would reduce the pressure too much and you would not get hot enough flame at the grill. If it were me, I would hook it up and see how it goes. If it doesn't work properly, then you are really not out that much and will have to see about tapping into the LP line before the trailer regulator.
Barney
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Posted By: goducks10 on 05/17/10 05:24pm

BarneyS wrote:

Sounds to me like that connection point is after the trailers regulator. You cannot run another regulator on your grill as far as I know because it would reduce the pressure too much and you would not get hot enough flame at the grill. If it were me, I would hook it up and see how it goes. If it doesn't work properly, then you are really not out that much and will have to see about tapping into the LP line before the trailer regulator.
Barney

Ditto, been there tried that. Spent several days running around tryimg differnt connections but the problem was the regulator at the TT tanks. You might try and connect a 'T' in between one tank and the regulator. Put a quick connect there . Only problem is if you ran that tank out and switched to the other you wouldn't be able to use the quick connect. I bought a Baby Q and just didn't want to mess with removing the regulator so I just pack an extra 20# propane tank in the pickup.

Posted By: chrispitude on 05/17/10 05:53pm I believe that the Weber Baby Q can be run on the regulated TT propane supply. See:

Thread: "What's a good portable gas grill?"

Thread: "Gas Grills - Low Pressure"

Posted By: BarneyS on 05/17/10 05:58pm
I have a baby Q and it has a high pressure regulator on it. As far as I know, it will not work correctly if the trailer regulator is also involved. What is nice about the Q grills though is that you can easily remove the regulator and put on a hose adapter to use it with the trailer LP pipe that comes on many of the new RVs.
Barney
Posted By: phemens on 05/18/10 06:46am converting your existing grill to low pressure probably won't give you great results. I found that the low pressure grill that came with our trailer was too slow and not hot enough. I swapped it for a Camp Chef range with grill, that runs off low pressure feed but pumps out 30K BTU per burner, which is close or exceeds high pressure. Very happy with the setup
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Posted By: HappyTrails2U2 on 05/18/10 07:07am I ordered the outside grill option on our trailer that has the connection and the grill but I should have just saved my money 'cause we'll never use it. A gas grill just can't compete with the flavor of a real charcoal grill in my opinion.
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Posted By: RTrider on 05/17/10 06:03pm I have the same desire, that is to plug my Baby Q into the trailer quick connect, but my understanding is that you cannot do this because you will have two regulators in series, and therefore the grill performance will suffer if not work at all. A local trailer dealer suggested that I take all the info and grill to a propane service place and they can adapt the grill (ie remove the regulator) and make you up a custome hose. Knowing that it will cost well over $100, I decided to continue to use my T fitting that attaches directly to the trailer propane tank, before the trailer regulator. It is a bit of a pain at times as you run one tank empty and then have to move the T to the tother tank.

If you come up with something reasonably priced, be sure to share the info.

Good luck

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Posted By: labman1014 on 05/17/10 06:20pm i am no propane expert, but have asked a few in the field and they have said that the TT regulator will drop the pressure to 11wc, then when u hook up the next regulator, it will put out what ever it is set for and most likely be 11wc.

i also read in the thread about the little red campfire in a can about someone using the quick connect and it worked fine since the campfire regulator was set to 5psi, or something of that matter.

Posted By: grain2626 on 05/17/10 07:08pm Most campers are low pressure. Your grill sounds like it is high pressure. To make my grill work I had too tee in a line between the tank and the camper regulator. Try the hookup first but you may not
have much heat.
Posted By: Billr57 on 05/17/10 07:27pm Does anyone have pictures on how to convert the baby Q to low pressure?
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Posted By: mosseater on 05/17/10 08:42pm I took the regulator off the Porto-chef grill I bought and screwed a long line in place to plug right into the trailer (after regulator). Then I rigged up another coupler to the regulator I removed so I can plug in a 20 cylinder in the event I want to grill away from the trailer. Works great.
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Posted By: mhawk4 on 05/17/10 09:03pm this is the fitting i built for my roadtrip, it is from a prior post i started.

Roadtrip low pressure connection

hope it helps!

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Posted By: jachol12 on 05/21/10 04:53am Sportsman Matt
Good point on QD fittings--I'll put the male QD on the grill & QD female on hose.
Posted By: labman1014 on 06/08/10 08:56am well, i have all my parts and i hook everything up and test for leaks. all is good there.

so i head to the grill and light her up.......but she only puts out a very flicker and then dies. i am not running the grill regulator, just off the TT low pressure.

so next i call Coleman and ask about what pressure their grills run on. the guy told me, "15psi" and the TT usually runs around "3-5psi". he said the only way to get it to work is run off the TT high pressure and use the grill's regulator.

so, what is a good low pressure grill out there???

Posted By: mosseater on 05/18/10 07:24am

HappyTrails2U2 wrote:

I ordered the outside grill option on our trailer that has the connection and the grill but I should have just saved my money 'cause we'll never use it. A gas grill just can't compete with the flavor of a real charcoal grill in my opinion.


I would have to agree. But, from a practicality standpoint, I can get the grill up and running in 15 mins. When the troops are hungry and the schedule is tight, the gas grill is the only option that still gives the grilled flavor. If I have time, I cook over the campfire more often anyhow, which puts charcoal to shame, IMHO
Posted By: labman1014 on 05/18/10 08:40am

man i hope my regulator will unscrew just like that one. it is a coleman and it looks similar. i will go try here in a few. if so, then u just solved my problem.

now, one last question. my line under the the TT is capped right at the frame. so i just unscrew the cap, after releiving the pressure, and add a quick connect? how do you keep it from getting road grime in it?

thanks again!!

edit--well i just checked and does unscrew. now i just need to find the fittings. where did u get urs? i wonder if lowes will carry them?

* This post was edited 05/18/10 08:50am by labman1014 *

Posted By: pete42 on 05/18/10 08:57am

labman1014 wrote:

man i hope my regulator will unscrew just like that one. it is a coleman and it looks similar. i will go try here in a few. if so, then u just solved my problem.

now, one last question. my line under the the TT is capped right at the frame. so i just unscrew the cap, after releiving the pressure, and add a quick connect? how do you keep it from getting road grime in it?

thanks again!!

edit--well i just checked and does unscrew. now i just need to find the fittings. where did u get urs? i wonder if lowes will carry them?


You said there is already a low pressure connection on the side of your trailer.
I think if you remove your regulator then you would plug directly into the already supplied connector mounted on your trailer.
and not have to add another connector.

Posted By: falconman on 05/18/10 09:30am Most box stores will not carry the fittings. DO NOT attempt to use air fittings! Since propane quick connects vary in size it might be easier to remove the quick connect from the trailer and take it with the BBQ to a propane dealer or BBQ place and have them fix you up with fittings and hoses. Your BBQ regulator must be removeable. When obtaining the fittings, plan out what you need that would include being able to replace the regulator with quick connect fittings should you need to. I ordered mine from this place.

http://www.campersdirect.com/restless/

Posted By: labman1014 on 05/18/10 09:43am

pete42 wrote:

labman1014 wrote:

man i hope my regulator will unscrew just like that one. it is a coleman and it looks similar. i will go try here in a few. if so, then u just solved my problem.

now, one last question. my line under the the TT is capped right at the frame. so i just unscrew the cap, after releiving the pressure, and add a quick connect? how do you keep it from getting road grime in it?

thanks again!!

edit--well i just checked and does unscrew. now i just need to find the fittings. where did u get urs? i wonder if lowes will carry them?

You said there is already a low pressure connection on the side of your trailer.
I think if you remove your regulator then you would plug directly into the already supplied connector mounted on your trailer.
and not have to add another connector.

the line on my TT is the copper line with a cap in it. it was an option for the quick connect but mine didnt have it. just a cap is all i have....

Posted By: labman1014 on 05/18/10 09:45am

falconman wrote:

Most box stores will not carry the fittings. DO NOT attempt to use air fittings! Since propane quick connects vary in size it might be easier to remove the quick connect from the trailer and take it with the BBQ to a propane dealer or BBQ place and have them fix you up with fittings and hoses. Your BBQ regulator must be removeable. When obtaining the fittings, plan out what you need that would include being able to replace the regulator with quick connect fittings should you need to. I ordered mine from this place.

http://www.campersdirect.com/restless/

my TT does not have a quick connect. just the line with a cap on it. i know the Lowes here has all type of gas fittings back by the metal pipe...

Posted By: Sportsman Matt on 05/18/10 03:51pm Labman1014, unless the copper line has the cap soldered on, you should be able to get a QD fitting with the gas shut off valve built in from any RV dealer. DO NOT USE THE QD FROM Lowes uless you want to get blown up. The fittings Lowes carries is mostly for Natural Gas not Propane.

All you have to do after getting the QD from a dealer is depressurize the LP system, unscrew the cap, screw on the QD with some Rectoseal (Recked 'em, damn near killed 'em [emoticon]) to seal the htreads and prevent leaks. Then just get the QD Hoses to hook up to the grill. As for running the grill with the High pressure regulator, it may work, it may not. Depends on how much pressure is needed to open the diaphram on the regulator to let the gas flow through.

Good luck

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Posted By: labman1014 on 05/18/10 04:16pm

Sportsman Matt wrote:

Labman1014, unless the copper line has the cap soldered on, you should be able to get a QD fitting with the gas shut off valve built in from any RV dealer. DO NOT USE THE QD FROM Lowes uless you want to get blown up. The fittings Lowes carries is mostly for Natural Gas not Propane.

All you have to do after getting the QD from a dealer is depressurize the LP system, unscrew the cap, screw on the QD with some Rectoseal (Recked 'em, damn near killed 'em [emoticon]) to seal the htreads and prevent leaks. Then just get the QD Hoses to hook up to the grill. As for running the grill with the High pressure regulator, it may work, it may not. Depends on how much pressure is needed to open the diaphram on the regulator to let the gas flow through.

Good luck

ill head to the local dealer tomorrow to see what they have. i did find a way to get the regulator off so im good there. my last question was, how do i keep the QD under the TT from getting road grime and such on it??

Posted By: mhawk4 on 05/18/10 11:24pm

labman1014 wrote:

Sportsman Matt wrote:

Labman1014, unless the copper line has the cap soldered on, you should be able to get a QD fitting with the gas shut off valve built in from any RV dealer. DO NOT USE THE QD FROM Lowes uless you want to get blown up. The fittings Lowes carries is mostly for Natural Gas not Propane.

All you have to do after getting the QD from a dealer is depressurize the LP system, unscrew the cap, screw on the QD with some Rectoseal (Recked 'em, damn near killed 'em [emoticon]) to seal the htreads and prevent leaks. Then just get the QD Hoses to hook up to the grill. As for running the grill with the High pressure regulator, it may work, it may not. Depends on how much pressure is needed to open the diaphram on the regulator to let the gas flow through.

Good luck

ill head to the local dealer tomorrow to see what they have. i did find a way to get the regulator off so im good there. my last question was, how do i keep the QD under the TT from getting road grime and such on it??

The Qd should come with a rubber cap to keep dirt from getting in the fitting, if not, get a rubber cap from any hardware store or auto parts.

Like others said, get your QD from an RV dealer or your local gas Co.

The fitting, i got them from a local ACE hardware.

Post your pics when done... Good luck!

Posted By: jessieboyh on 05/19/10 10:41am I have a baby Q and it has a high pressure regulator on it. As far as I know, it will not work correctly if the trailer regulator is also involved. What is nice about the Q grills though is that you can easily remove the regulator and put on a hose adapter to use it with the trailer LP pipe that comes on many of the new RVs.
Barney

To the guys using Weber Q's. Once you have adapted the BBQ regulator, to run off of the TT low pressure propane, do you have a quick disconnect at each end of the hose?
what is the adaptor you are using on the BBQ?
thanks,

Posted By: jachol12 on 05/19/10 01:31pm Jessieboyh
I converted my Weber Q grill for my aux. propane QD fitting on my Jayco. All parts cost approx. $50.00. I have a 10' hose with male QD fittings on both ends & the Q grill has a QD female w/shutoff where the regulator was removed. Very easy conversion. Had to remove some of the hardware around the burner control & then reinstall such equipment after the regulator was removed. Got all the parts from a local RV store. Be sure the QD fittings are the low pressure type. Also use the "yellow" pipe teflon tape for joints. If you need brass couplings, they can be found at Ace,Lowes, Home Depot,etc. Grill works great, just plug the QD hose to the trailer QD & grill QD.
Posted By: labman1014 on 05/19/10 05:49pm well im striking out everywhere. the 2 dealers here in town dont carry propane parts. they have to order them. the local box stores have natural gas quick connects, but no propane. and even the local propane dealer says the quick connects have been on back order for 3 weeks.

at least i have figured out what i need to do. im gonne relieve the pressure on the TT and take the plug out and take that with my piece from the grill and go to the propane dealer and have them help me put a female QD on the TT and one on the grill piece. then make me a 10ft hose with a male QD on each end. i will be set then!!!

Posted By: Sportsman Matt on 05/19/10 09:27pm Actually you want a Female on the TT, a male on the grill, and a hose with the male and female ends. Reason is that the female will shut off internally when disconnected, something a male end won't. So if someone disconnected the hose at the grill while still pressurized, the gas loss at the grill would be minimal, but if that end was a male end, it would keep letting gas out until the line was shut off.

Good luck

Posted By: chrispitude on 05/21/10 05:12am It seems like finding the propane quick disconnects are going to be the tough part. I live in a small town and I'm not expecting much luck finding them either.

Out of curiosity, what's the difference between natural gas and propane quick disconnects? I know that the two differ in BTU content. Are they intentionally incompatible to prevent someone from hooking up a natural gas appliance to a propane source (a big no-no)?

Posted By: mhawk4 on 06/08/10 10:42pm

labman1014 wrote:

well, i have all my parts and i hook everything up and test for leaks. all is good there.

so i head to the grill and light her up.......but she only puts out a very flicker and then dies. i am not running the grill regulator, just off the TT low pressure.

so next i call Coleman and ask about what pressure their grills run on. the guy told me, "15psi" and the TT usually runs around "3-5psi". he said the only way to get it to work is run off the TT high pressure and use the grill's regulator.

so, what is a good low pressure grill out there???

My roadtrip is 20,000btu just like yours and it is working good, i know i am not getting the full capacity as if i was using the throw-away bottle; i say i am on 80%.
3-5psi sounds too low for the connection on the TT, how can you work when using the water heater, refrigerator and a grill or stove with this kind of pressure? ( this is assuming you do not have connection)- the water heater alone will pull the full 5psi...

Did you measure the psi from the quick disconnect also from thee hose before entering the grill; what about the grill? all valves open...
Hope you can get it to work..

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Source: https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/23990372/print/true.cfm

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