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What he was saying - and I believe it was Ernest - was: don't blow air onto the front face of your radiator but rather use a blower to draw air out the back side of your radiator. Attach a cardboard box to the outlet side of radiator as per attached sketch. Sounds like a good idea to me ...
Jeff
Is that you Roy?
I couldn't understand your description here. Sorry if I'm being being slow.
Steve Izett
> On 23 Nov 2020, at 11:15 pm, Ernest Christley echristley@att.net <flyrotary@lancaironline.net> wrote:
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> Just FYI, I had a HVAC engineer help me with my installation. One of the things I learned is that blowing "into" a heat exchanger will create a host of errors, the most obvious being that the blower tends to blow stronger in the middle of the stream than at the extremities. To eliminate these errors, put the head of the blower in a box at the rear of the heat exchanger. Cardboard is fine for the box. Stick the nozzle through a hole in the box so that it blows out. The blower is now dropping the pressure in the box. For good measure, shape the box to simulate what the air would encounter leaving the heat exchanger.
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