BoyntonStu wrote:
Large buildings use water to remove the heat from theur ac condensers.

What about a recirculating fountain to spay the coils in my ac
condenser for 90+ temp days.

How much 'gain' in efficiency would result?

Negitive gain as your unit isn't setup to take the water and the fins would
corrode and then you need a new unit costing more than you saved.

Rich