[megalomando]

Hi,

I've got a single pass heater core with elements 9.5" x 6.5" x 2". It's a single pass core with the inlet/outlet being diagonal with each other.

In a thread I’d posted I asked several questions & one was for placement. (It’s going external & in the rear. I was thinking it would be advisable to have the hot water enter the top & exit below in that the hot water would tend to be at the top and the cooler would tend to sink & this way maximum cooling would happen to the exiting water.

One fellow said the hot should enter the bottom because the bubbles would get trapped in the top of the core if that was where the water was entering and that I should consider installing a bleeder valve to release the air if I’m going to have the hot enter the top.

It’s an interesting thought. It seems as if any heater core would run this “risk” if it’s vertically placed.

I was going to attach the heater to the outside of the case tomorrow but I’m going to await responses on this one.

Anyone have any choice ideas on this?

Cheers!