Installing propane heater into existing line

Be careful as you know messing with propane can be dangerous. But it is not rocket science as long as you think, plan and TEST, TEST, TEST. I have made many modifications to my propane system. One of the first mods was to remove the stock pressure regulator for a dual tank or automatic regulator (like the ones fifth wheel or TTs use) to switch automatically from empty tank. The latest mod was to add a quick connect under the range so I can use my "Lil Buddy" auxiliary heater. I cut into the 3/8" soft cooper line that goes to the stove top. Installed a 3/8" flare "T". Out of the third branch extended more soft cooper tube to a 3/8" flared X 1/4" male NPT (National Pipe Thread). Which screwed into the 1/4" female Quick Connect. The Quick Connect I got at Camping World and every thing else I got at Lowes. Lowes can help you with tools and sealants you will need. MOST IMPORTANT; when you think you are done, open doors and windows, Pressurize system and put soapy water on all fittings to find any leaks. If you would like I can text you pictures as I don't know how to put them with this post. (717) 824-1517. Good Luck
Bruce R
2005 Monaco Diplomat 38PDQ