Would the price of the (Attwood Turbo In-line Blower) fans cost 150% more? Or does that include the cost of 12v/AC adapters?
Would the CFM airflow of these fans be less than the airflow you have actually going into the system? Since these fans would direct all of their flow into the system, you also need to take into account the differences in performance between the two types of fans. You've already admitted that the existing fans are inefficient.
(existing airflow)/cost = cost of existing airflow (CFM|CFH)
(prospective airflow)/cost = cost of prospective airflow (CFM|CFH)
I looked for the specs here, but couldn't find any.
http://www.attwoodmarine.com/store/product/Turbo-4000
Bad news! These fans are patented, just like the Mazzei Injectors.
But like I said, you could look for fans like these that were meant to run on AC. That would eliminate any trouble you see here.
Shingoshi
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