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nkaminar · 06-29-2025, 06:42 AM

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The ad does say 3,000 Watts of cooling. If that is what is drawn from the alternator/battery then that would be 250 amps at 12 volts. Tom, above, uses a COP of 1 KW so in that case the average amperage would be 83 amps. This may be a good choice for a boat with a large solar system or Diesel generator and large house batteries but not for a Model A.

Here is the link for the Ken Davis air conditioning system: Several people I have met say that they like his AC system and that they don't notice any draw on the engine power. I don't know if his system is still available. My only complaint for his system is that it takes up a lot of room under the tank.

http://www.kendavismodela.com/AirConditioners.html

06-29-2025, 06:42 AM	#6
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 5,850	Re: 12 volt air conditioners Sponsored Links (Register now to hide all advertisements) The ad does say 3,000 Watts of cooling. If that is what is drawn from the alternator/battery then that would be 250 amps at 12 volts. Tom, above, uses a COP of 1 KW so in that case the average amperage would be 83 amps. This may be a good choice for a boat with a large solar system or Diesel generator and large house batteries but not for a Model A. Here is the link for the Ken Davis air conditioning system: Several people I have met say that they like his AC system and that they don't notice any draw on the engine power. I don't know if his system is still available. My only complaint for his system is that it takes up a lot of room under the tank. http://www.kendavismodela.com/AirConditioners.html __________________ A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past. Last edited by nkaminar; 06-29-2025 at 06:48 AM.