Few things in life are as pathetic as a stock TR3's heater and defroster...
I installed an aftermarket Maradyne tractor cab heater and am very happy
with it in comparison to the stock heater. I rigged up the defrost vents and
had very little air flow out the defroster vents. I checked and it was blowing
out of the defroster ports on the heater fine. There was less flow at the end
of the detached defroster duct hose and even less out the defroster vent (to a
point that I couldn't tell if any warm air was flowing out). I replaced the
stock TR ribbed defroster duct hose with a smoother bore flexible aluminum duct
hose from McMaster Carr and it flows much better. We'll see how well it does
this winter. If it doesn't cut it then I may re-engineer new defroster vents
and install a 1 and 3/4th defroster duct hose. That should take a sledge hammer
to it. Then again, it may work fine.
I have been tired of using my sleeve as the defroster/defogger....
Bill in Tehachapi
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