Quote:
Originally Posted by Daox
I'm not sure about the rest of you, but around here it has sure cooled off quickly. [...]
12V coolant pump
I'm very open to other ideas for retaining heat use with the engine off, but this seems to be the simplest I can think of.
The next step would be how to turn it on only when the engine is not running. I don't really have any thoughts on that so far, so I would love to hear you guy's thoughts on how we could do this. |
Thanks, Daox, for this great idea! I, too, get tired of having mostly cold air in the wintertime due to EOC. So, I bought two of these pumps and installed one in each of our cars. I'm very happy to report that it works! No more cold air!
I wired the auxiliary coolant pump into the 12v ignition ON circuit (with a fuse) using a relay that I installed and connected to the fuel pump circuit. When the fuel pump runs, the auxiliary coolant pump turns off; otherwise, when the key is on the auxiliary pump is running. In the summer, I can just disconnect the auxiliary pump from the relay to keep it from running.
The only catch I discovered is that the pump linked above is designed for 3/4" hose, not 5/8"--so I had to use adapters in order to connect it to the 5/8" heater core hose on both cars.
Again, I just wanted to report that this works very well indeed. Thanks again for the excellent idea!
-Funkhoss