Quote:
Originally Posted by jcclark2823  ... Blower motors was the way I was thinking of going as well. I can install one right above the unit to bring in air and then one higher in the locker to take out the heater air. I'm going to try it today so I'll let you all know how it went. |
You generally want about 400 - 500 CFM per Ton* cooling ambient (unheated) air across your condenser.
A smaller window A/C unit of 6,000 BTU/h, would therefore require about 200-250 CFM (outside) airflow.
Typical bilge blower fans are rated between 100 - 150 cfm, roughly half of what you’d need, were they configured to be fully effective.
I cannot imagine circumstances where, even two (150 CFM), bilge blowers would effectively ventilate a cockpit locker, in your proposed application.
I think most of the previous advice to locate the condenser outside (hatch/companionway) is appropriate.
* In North America, a standard ton of refrigeration is 12,000 BTU/h (3517 W).