How to turn your heater core off and on in the cab.

[Waterloo]

(05-17-2019 )smorgan87 Wrote:  I think what u want is a 12v solonoid valve.
HFS 110v Ac or 12v Dc Electric Solenoid Valve Water Air 1/4", 1/2", 3/4", 1" NPT Available (12V DC 1/2" NPT) https://amzn.to/2Q9gl5f

Nope, not a solenoid valve, they will burn out. You want that valve I posted, it only needs 9 volts, it opens the valve, wait four seconds, and shut off with the switch. A solenoid requires a constant power supply to stay open or closed, and if you forget to turn off, it can and will burn up. I have that same solenoid valve you linked to, and discovered that it is only good for 8 hours of continuous use and then it burns up. I discovered that after doing some research. The reason I went with the other valve.