Eliminated AC...Now What Should I Do?

Keep the valve. I plan to add a water valve to my non-factory AC cars. I know the heater doesn't put out much heat w/ its blower off, but post #2 is correct that hot water alway flows (thus post #4 is incorrect). The classic Mopar ones are expensive and a bit clunky. I got some new plastic valves cheap (Ford or such), but I need to figure how to actuate the vacuum when my under-dash AC is on. I have some vacuum solenoids.