Some people say the heater won't put out heat unless the fan is on. I just think its better to shut the flow of the hot water from the cabin when not needed.
I looked all over the Internet for a ball valve with a handle I could connect a cable to. I found that there was a Automotive valve that was made for heaters and a NAPA part number was listed. I called the NAPA in Umatilla and ordered one.
Found this at NAPA Auto Parts
Just need to get a matching cable to the Parking Brake cable I have
