Later this month, I am going to buy this receiver. However, I am aware of the heat that this receiver has. In order to prevent any problems, I want to make sure that my AV cabinet has enough room for air ventilation. The cabinet I am looking to buy has 8" of space above the receiver and 2-3" on each side. The cabinet is against the wall so there would not be much ventilation behind it - perhaps a few inches. Should this be ok? Or should I consider buying a cooling fan?