Reply to "1-1/2" Heater Boxes- and Real Heat"

Former Member

It's a good idea not to impede air flow through heater boxes; in fact they have a hole to in them to allow air to flow through when the heater control valves are closed (no cockpit heat). The air flow is to keep the exhaust pipes running through the boxes from overheating and burning out prematurely.

2/12/0311:01 AM

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