Outside LP Quick-connect

The basic explanation is that the propane system is at 11" WC pressure or approximately 1/2 PSI. The dual stage regulator found in most RVs are intended to deliver this low pressure at a uniform rate to all the appliances. Portable propane gas appliances generally have a single stage regulator that is designed to work at 'Tank Pressure'. That pressure varies with the ambient temperature. There are two options. The first is to purchase a gas appliance designed to work at 11" WC (generally expensive) or as mentioned previously, modify one. For my friend's fifth-wheel, we modified a Weber grill by removing the regulator and installing a quick-connect pig-tail. Other grills can be modified as well if the control does not have an integrated regulator. The second option is to install a Tee at the tank and add a 10PSI single stage regulator. From there, I ran a supply line to the quick connect at a convenient location. That is just enough pressure to allow the built-in regulator on my portable appliance to work. A 15 PSI would be a little better if there was one handy at the time. It can not be stated too many times that it is a BAD idea to tap into a tank and run a line at tank pressure for any distance. On a hot day there could be 200PSI in that line and on a cold day there could be propane condensing. Another idea I got from someone who used larger cook stoves with higher BTU output is to install an adjustable regulator to accommodate higher demands. If there is already quick connects on the rig, go with option one and get an appliance designed for it or be adventurous and modify. Option two if you are starting from scratch. In the end, this give you more choices of appliances.