I double checked all the heat clearance dimensions in the installation manual and I'm above the minimums. I'm concerned about how I'm going to protect the power and A/V cables when they're installed. I also have some concerns about the heat transfer ducting as there's a callout for a specific 'fall' in horizontal runs that I can't quite reach with this setup. I'll have to call the factory for clarification on whether it's for heat transfer, draining of condensation or both.