Bill wrote:

Nice job on the heater distribution molding.  I take it that the entire

unit

sits in the cabin area so that only cabin air is being heated by the

heater

core.

This is true.

What is the size of the heater core (dimensions), and what is the weight

of

the blower motor?

The core is 6 x 6 x 2.  Paged through the catalog at NAPA until I found one
the right size.  I think it's from an old Ford van.  The catalog said
aluminum, but when it came in, it turned to be copper so a little heavier
than I thought.  Don't know what the blower weighs, but the entire unit
(blower, core and housing) weighs just over 4 lbs.

Do you find that you need to destroy the mold to get the part off?

No.  Mated the molds to the core with duct tape (covering the sides of the
core), and laid up two or three plies of BID over the whole thing; let it
cure, and then cut it apart at the core, and made a strategic cut or two to
help pull the parts from the molds.  Then put on another ply(s) to cover the
seams and strengthen as needed and make up the flange.

Are you planning separate ducts to windshield, etc? if so, what are you

using

for the control of the air flow -- I have found normal "heat boxes" to be
very expensive from Aircraft spruce, etc.

The heater unit mounts in the back of the cabin (near the firewall).  Hot
air ducted forward under the seats.  Haven't done the ducts or controls yet.
I expect I'll fabricate whatever I need.

Al

 
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