Quote Originally Posted by HESmelaugh View Post

My approach to testing this came from reading about two other, similar tests that showed next to no effect for the sandwich vs. just one radiator. It seemed like the air got so warm after the first radiator that it just didn't do anything for the second one anymore.
That's why my focus was on verifying or disproving the hypothesis: Radiator sandwich is no better than single radiator. I must admit that I just didn't test enough scenarios, but as I said: I'll do more runs when I find the time.
In the pic below--if the air flow is reversed...I would expect the results (no effect) to be as you stated above. Air/water flow is important in this type of setup and, again, I could be wrong....but it seems like common sense to me.

Quote Originally Posted by Naja002 View Post