‘True Costs" per CFM (Low Wattage Comparison)

Costs presented to consumers are all relative to who is presenting them.  Some contractors get a better price and install multiple units over higher effective units and some installers sell on the price but forgets to inform the consumer what they are really getting. Lets review the TRUE COST of the presented low-cost products over the SR1800 Solar Attic Fan. It has been reported to us and we have seen