REFLECTOR: Cabin Heat (Alex Balic)

Lawrence Epstein ljepstein at hotmail.com
Sun Jan 15 17:23:02 CST 2012


Hey Alex-
Do you have the Toyota Part Numbers?

> On Jan 14, 2012, at 10:24 PM, Alex Balic wrote:****
>
>
>
> ****
>
> Hey Dave, I have a Toyota corolla fan recirc. only system on mine- it even
> has the resisters built in, so I worried it to a 3 pos switch so I have 2
> speeds- pulls from the top of the canard through a block off bulkhead,
> blows it back down at the feet- have not been flying yet, but I have ground
> run quite a bit, and  it definitely gives me auto type heat temps and
> amounts too, which is good, because I live in Texas and  I absolutely hate
> being cold…..I do have the luxury of having hot coolant running through it
> though, but should not make a huge difference except maybe with the
> transfer efficiency of the glycol vs. oil.  I also have a small heater core
> with slab mounted fans that I will add for the rear pass if it comes to
> that….****
>
>  ****
>
> *From:* reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] *On
> Behalf Of *David Scharfenberg
> *Sent:* Saturday, January 14, 2012 5:16 PM
> *To:* Velocity Aircraft Owners and Builders list
> *Subject:* Re: REFLECTOR: Cabin Heat****
>
>  ****
>
> I've fought the cabin heat issue for years and sealing all of the cold air
> leaks up front seems to be the first and most important step.  After that,
> blocking off about half of the front oil cooler with duct tape helped.****
>
>  ****
>
> I tried to block all of the outside air to the front cooler and
> recirculate cabin air through it with bilge fan.  That just resulted in too
> high oil temp and virtually no cabin heat.  I think the static pressure was
> too much for the fan I used.  A centrifugal fan may have worked, but I just
> had no place to put one.****
>
>  ****
>
> Dave Scharfenberg****
>
> Std/RG****
>
>  ****
>
>  ****
>
> On Jan 13, 2012, at 6:24 PM, Don Johnston wrote:****
>
>
> Ruben,
>
> Here's my theory: The temperature of the air is only going to increase so
> much by passing through the oil cooler.  On a cold day in the north with
> the OAT at -10F, I'm guessing an increase of 50F from passing through the
> oil cooler. This means 40 degree air blowing in.
>
> So I installed a damper between the front/side NACA and the oil cooler.
> Moving the damper to block the outside air uncovers a duct from the cabin
> which is fed by a blower. This way I am recirculating cabin air through the
> oil cooler at a lower speed.
>
> In a couple years when I'm flying I'll let you know if it works. :-)
>
> -Don****
>
>
> From: ruben at vainneg.com
> To: reflector at tvbf.org
> Date: Thu, 12 Jan 2012 21:35:34 -0500
> Subject: REFLECTOR: Cabin Heat
>
> Hi all,
>
> When I am flying below 0 Celsius outside temperature, the oil cooler seems
> to not heat enough the air coming into the cabin. The other day at -12C
> outside it was very chill in the cabin. I heard some of you partially cover
> the cooler, but not sure if the can be risky if covered too much. Has any
> one had any experience trying to get more cabin heat?
>
> Ruben****
>
>
>
>
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