Quite a few RVers have this setup on their RVs. This can be a do-it-yourself job as long as you are comfortable working with propane connections. If you have ever hooked up a Gas Dryer in your home, you should be able to make this modification on your own. If you are not comfortable doing this yourself, you may want to pay someone to do it for you.
The video below outlines the installation procedure for this accessory:
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