Here are some pictures for you of the new heater installation. Here you can see the new duct that replaces the one from the NACA and accepts the air from the bilge fan. We still use the standard flapper valve to take the air to the keel or dump it overboard. In the keel we have outlets next to each seat at the floor level. The second picture shows the duct leaving the fan to the duct, and the two outlets from the flapper coming together and then combining at the T on the way to the keel. You can see here the lip we made to seal the discharge.

New heater duct	Nose Heater Duct
Nose Heater Valve	Heater to keel duct
Heater dump seal lip

Posted By: Brett Ferrell
Sunday March 7th, 2010 at 8:34 PM

Categories: Cabin Heat Engine Plumbing
Tags: Building Cooling Engine Fuselage Oil