Just went thru doing what you asked about. First challenge is if you connect after the main regulator on your RV's tank--you get low pressure propane. Like any appliance with a built in regulator [eg Road Trip grill], your new "Campfire-in-a-Can" requires high pressure to feed its variable regulator--like from a 20lbs bottle.
Not for the faint of heart but you can install a tee between the maintain tank shut off and main regulator to provide the needed high pressure. I added an extra shut off valve and an ACME nut to this new stub [double safety shut-off].
Second challenge--when I tried to connect an extension hose to the new stub and go to the exising regulator on the Campfire, something inside one of the connections shut off the flow--"propane gods" I think. Finally installed the campfire variable regulator on the Acme nut at the stub, then use the extension hose to reach the campfire hose. Accordingly, I had to leave the campfire regulator wide open and installed a simple ball valve at the end of the extension hose to regulate propane flow and fire intensity.
Once constructed, I can now use this set- up to feed my road trip grill too. Again, because of the "propane gods," getting compatible connections was a major challenge. However, with a double shut-off and the use of std gas plumbing connections, I feel very safe with this solution.
PS--dont like idea of carrying extra propane tanks and since the campfire does consume a fair amount of gas--nor making the extra trips for refills.....
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Old Scout
2015 IH45 Foretravel
2003 Alpine 40' MDTS [Sold]
New Braunfels, Texas
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