I've been reading about DIY solar thermal collectors, and the various ways their performance is influenced. One of the things I learned about solar water heaters for a pool is that it's recommended to run the pump pulling water through the collector at full speed. The reasoning is that the amount of energy that the sun is putting into the collector is constant, and running the water though the pipes faster results in less heat from inside the collector being lost back to the surrounding air (or the glazing, box material, etc.).
If a solar thermal collector for air is pulling air via an intake fan from the house, driving it through pipes in the collector, then pushing it back into the house, does the same concept apply? The fan should be blowing the air as fast as it can, as long as the temperature of the pipes are greater than the intake air temperature? Or am I missing something?