Heat rises, so I don't know if 1" is enough; but if you worry about it, you could add a fan to move that heat like a computer case. It shouldn't be too expensive.
I have a yamaha HTR-5640.
http://www.yamaha.com/cgi-win/webcgi.exe/DsplyModel/?gAVR00010HTR-5640
It's my first a/v receiver.
It's has vents on the top and on the left side.
I want to put it in a space that will leave about 1 inch for the top vents and well over 12 inces for the left vent.
Any thoughts? thank you!!

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