Use waste passenger cabin air for combustion

By Gary L.

Instead of expelling waste temperature controlled air from the passenger compartment directly to the atmosphere it should be safely channelled to the intake for the engine before the air filter. Then in the winter the air will be 70-75 degrees the optimal temperature for engine efficiency even though I know about the heat stove on the engine. Also it is more beneficial in the summer because it is wasteful to exhaust air conditioned air to the atmosphere when that cold air mass can help cool the engine. Use a trottle body heat exchanger if necessary for safety reasons.