thinking of using the heat pumps wind to harness for making energy

I have been thinking about harnessing the wind that my heat pump creates.  I can not count on mother nature to create wind but every time the heat pump kicks in,there is a blast of air.  I'm thinking of something small that could harness the wind.  It would live under the deck and maybe make enough energy to run the heat pump.  It wouldn't go directly to the heat pump but help with house hold electrical load.  Has anyone tried this before?  I don't want invent the wheel if someone has already got something working.  On the other hand if someone has tried and it didn't work because the air movement is too disorganized for it to work I could shelve this until winter.
I'm just throwing the idea out there.  Yes I'm crazy but sometimes crazy works.

My physics side wants to say that this would be a net loser. Most any turbine you placed that would effectively be pushed by the air, would be putting back pressure on the fan, making it work harder to disperse the heat from the coil and condenser. Think of it like a fluid (because it is). You are asking one pump that is already pumping "water" to now power a turbine, and expecting the pump not to have to work harder to do so. There may be some slight nuance to this particular situation, but i think overall you have a net loser of energy. On the bright side though, it gives you a good bit of experience setting up a small diy wind turbine, give it a shot and report back here with the results.

This sounds like a great idea though my senses says this will harm the life expectancy of the heat pump.