A buddy of mine just finished installing a rear seat heater in his pre-1970 Citabria.
All parts (except for the "T" duct") were purchased from American Champion or Aircraft Spruce. Parts total $243.
Photos:
http://www.flickr.com/photos/13896784@N00/5415843205/in/set-72157625947873824/
Citabria rear seat heater
American Champion
1-800-223-9381
1-262-534-6315
Parts…Tina
x-Rear Seat Heater Shroud (black top hat)…1-9706-2 $26.34
x-Rear Seat Heater Box (flapper valve)………2-2122 $59.26
x-Rear Seat Heater Flange…….................ADF-2 $14.27
Aircraft Spruce Parts
877-477-7823
x-CONTROL 6 BLACK KNOB 05-13672 A-730 *Glide free black knob control cable…$25.95
x-2 dia. SCAT $6.75 per foot x 6 feet ……$40.50
x-3 dia. SCAT $6.75 per foot x 3 feet ……$36.03
x -2 1/16” I.D. and ¾” I.D. Adel Clamps (5 each) ……… $19.79
Aluminum Tubing for "T" duct (this is the only part that needs machining and welding)
Speedy Metals
866-938-6071
http://www.speedymetals.com
3” O.D. and 2” O.D. aluminum tubing, .065" wall (12” each)……$20.44
Total: $242.58
All parts (except for the "T" duct") were purchased from American Champion or Aircraft Spruce. Parts total $243.
Photos:
http://www.flickr.com/photos/13896784@N00/5415843205/in/set-72157625947873824/
Citabria rear seat heater
American Champion
1-800-223-9381
1-262-534-6315
Parts…Tina
x-Rear Seat Heater Shroud (black top hat)…1-9706-2 $26.34
x-Rear Seat Heater Box (flapper valve)………2-2122 $59.26
x-Rear Seat Heater Flange…….................ADF-2 $14.27
Aircraft Spruce Parts
877-477-7823
x-CONTROL 6 BLACK KNOB 05-13672 A-730 *Glide free black knob control cable…$25.95
x-2 dia. SCAT $6.75 per foot x 6 feet ……$40.50
x-3 dia. SCAT $6.75 per foot x 3 feet ……$36.03
x -2 1/16” I.D. and ¾” I.D. Adel Clamps (5 each) ……… $19.79
Aluminum Tubing for "T" duct (this is the only part that needs machining and welding)
Speedy Metals
866-938-6071
http://www.speedymetals.com
3” O.D. and 2” O.D. aluminum tubing, .065" wall (12” each)……$20.44
Total: $242.58