REFLECTOR: Cabin Heat (Alex Balic)

[Brooke Wolf]

> I too would like to figure out a way to throw up some warm air up on the pilot side windscreen.  Anybody got any good ideas of what to use as a defroster vent.  I have heard of folks using a vacuum cleaner furniture cleaner or a piece of aluminum pipe drilled with a line of holes and pounded into a flat or oval shape.  Does anybody know of a automobile vent that works good?  I have a RG with a standard padded and upholstered glare shield.

Thanks

Brooke
>  
> 
> From: "Alex Balic" <velocity_pilot at verizon.net>
> Date: January 15, 2012 12:24:28 PM EST
> To: "'Velocity Aircraft Owners and Builders list'" <reflector at tvbf.org>
> Subject: Re: REFLECTOR: Cabin Heat
> Reply-To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> 
> 
> Hi Dave,
> I have heard that those small heaters work well for defrosters too, , but you need to watch how close it is to the plexi- one of the other guys (Jean?)uses one regularly, but it crazed the plexi at the bottom where it sits because he had it too close… I was going to try just running s small bilge blower with some hose that would pick up right near the heat vent on the floor and blow up on the windshield- I didn’t what to have to put a damper door in there if I could avoid it.
>  
> Alex
>  
> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of David Scharfenberg
> Sent: Saturday, January 14, 2012 10:57 PM
> To: Velocity Aircraft Owners and Builders list
> Subject: Re: REFLECTOR: Cabin Heat
>  
> Alex,
>  
> You have a better fan than I tried.  I may work on the heat issue again sometime, but sealing off the leaks (especially around the RG nose gear) made a huge difference.  I also have a small electric heater that I can plug in and use on cold days.  I haven't tried it yet though.
>  
> Dave
>  
>  
> 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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