When I close the vents I still don't get any appreciable air out the
vents. I tried pulling the hose off at the heater and it blows serious air
out. Either the defroster vent is blocking the air or the hose is preventing
the air (or both). I ordered a smoother bore hose from McMaster Carr and will
try that. If it doesn't help enough then I plan to modify the vent itself to
make the outlet bigger.
Bill in Tehachapi
--- On Tue, 10/26/10, Chris Simo <ccsimonsen@gmail.com> wrote:
From: Chris Simo <ccsimonsen@gmail.com>
Subject: Re: [TR] TR3A Defrosters
To: "William Brewer" <wsb1960tr3a@att.net>
Date: Tuesday, October 26, 2010, 5:00 AM
What happens when you close the vent? can it force air out the defroster
then? if not -- can you temproarily duct tape the vent closed fully and see
what happens? - I had to put some blowers in the duct work in my house to
get heat to some rooms --- seems impradtical solution for TRs... keep me
posted on the heater --- my stock one blows (barely).
chris
On Mon, Oct 25, 2010 at 10:43 AM, William Brewer <wsb1960tr3a@att.net>
wrote:
Last year I put a Maradyne heater in my TR3. I really like the heater and
stay toasty warm on my way to work and the fan blows pretty hard. The Maradyne
has dual 1.75" diameter defroster outlets. The TR3 defroster hoses are 1.25"
diameter, so I made adapter fittings out of PVC on my lathe and hooked up the
TRF sources 1.25" corrugated defroster hoses. The ducts have no sharp bends or
90 degree angles. I only hooked up the driver's side as a test. Driving to
work this morning I configured the vents so 100% of the heater air would go
through the drivers defroster. Man, barely any air would come out. As a matter
of fact, it was hard to tell if ANY air was coming though. The vent is clear
of obstructions. What gives? I am thinking that the rough corrugated hose may
have friction losses. I am considering buying an aluminum hose from MMC(item
5262K21). I am also considering trying to open the defroster vent up a little
bit.
Anyone else have this problem?
It seems like it should blow like crazy out the vent.
TIA,
-Bill in Tehachapi
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