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Heat boxes for RV-4

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halbenjamin(at)optonline.
Guest

Posted: Fri Jan 04, 2008 8:17 pm Post subject: Heat boxes for RV-4

Hello All,

  

 I'm looking for a heat box for an RV-4 with air mixing capability (cool air, heated, or mixed) that allows for dumping of unused heated air. Looking at the ads online, I see heat boxes that will dump unused hot air, and heat boxes that can mix warm with cool air, but I can't tell if any of these will do both. Any tips would be appreciated.

  

 Thanks,

  

 Hal Benjamin - RV-4

 Long Island, NY

 Finish kit & Spending money like a drunken sailor

Dale Ensing

Joined: 11 Jan 2006
Posts: 571
Location: Aero Plantation Weddington NC

Posted: Sat Jan 05, 2008 5:37 am Post subject: Heat boxes for RV-4

Hal,

 Have you checked out the mixer from  Van's?

  

 http://www.vansaircraft.com/cgi-bin/catalog.cgi?ident=1199460045-284-291&browse=heatvent&product=chv-1

  

 It has an air bleed hole. Doesn't really dump all  the unused hot air but works very well. I have one on my 6A with the hot air  from two heat muffs in tandem. Have been flying for three years with this set up  and no problems.

  

 Dale Ensing

 Aero Plantation

 Weddington NC 

 [quote]   ---

_________________
Dale Ensing
RV-6A
Aero Plantation
Weddington NC

pbesing(at)yahoo.com
Guest

Posted: Sat Jan 05, 2008 8:57 am Post subject: Heat boxes for RV-4

I've got this one and will be installing this in my RV-4 hopefully this weekend.  I'll post my flight test findings...what I like about it, is that I'll be able to plumb the air right to the air vents, and get the right temperature instead of having a heat blow on your feet.



Paul Besing

RV-4 N73DD

Arizona



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halbenjamin(at)optonline.
Guest

Posted: Sat Jan 05, 2008 5:57 pm Post subject: Heat boxes for RV-4

Paul C Dale C Chuck C

  6nbsp;

 Thanks for the help! I had seen Van 7s mixer C but never noticed the hole E E E ELooks like that setup should work E 6nbsp;

  6nbsp;

 Hal Benjamin



---

pbesing(at)yahoo.com
Guest

Posted: Mon Jan 07, 2008 7:27 am Post subject: Heat boxes for RV-4

Installation was pretty easy.  I had a scat tube running from the baffles to the firewall, into a box that splits to two scat tubes going to the air vents, just below the panel on either side of the fuselage.  I simply plugged that box into the firewall box, connected a cable and the heater tube.  Haven't used it yet, so I'm not sure how it's gonna work, but should be flying in a few days.



My biggest concern is there is no place to vent the heat overboard.  It's going to pre heat the mixer tube I imagine, which might effect the temperature of cool air going in..  We'll see.



Paul Besing



-----  Original Message ----

From: "halbenjamin(at)optonline.net" <halbenjamin(at)optonline.net>

To: rv-list(at)matronics.com

Sent: Saturday, January 5, 2008 6:56:07 PM

Subject: Re: Heat boxes for RV-4



 Paul, Dale, Chuck,

  

 Thanks for the help! I had seen Van's mixer, but never noticed the hole....Looks like that setup should work. 

  

 Hal Benjamin



---

halbenjamin(at)optonline.
Guest

Posted: Mon Jan 07, 2008 7:51 pm Post subject: Heat boxes for RV-4

Hi Paul,

  

 I'm working figuring out where to install all this stuff on the firewall, do you have any pictures of your installation?

  

 Hal



---

pbesing(at)yahoo.com
Guest

Posted: Mon Jan 07, 2008 9:39 pm Post subject: Heat boxes for RV-4

Not yet...but it's dead center behind the engine, about 4-6 inches from the top of the firewall.  That goes into a box on the cabin side of the firewall with two outlets going to the air vents.



I will try to get some pics soon.



Paul Besing



---

halbenjamin(at)optonline.
Guest

Posted: Tue Jan 08, 2008 9:53 pm Post subject: Heat boxes for RV-4

Thanks Paul E 6nbsp; 

  6nbsp;

 Hal Benjamin

 Do not archive



---

pbesing(at)yahoo.com
Guest

Posted: Sat Jan 19, 2008 6:34 pm Post subject: Heat boxes for RV-4

Update....installed and flew the "Y" selector box from Van's.  Works as advertised.  I just use one part of it, only using one cable.  The heat works with my robbins muff, but isn't as warm as I would like.  I don't fault the selector box for that, just the airflow/springs/etc etc that have been in the archives.  Just need the right volume of air/temperature combination.



Recommend the "Y" box.works perfectly.  I can't see a need for the second valve they include with it.  I left mine out.  Also, I have it plumbed directly into my air vents on either side, just below the panel.



Paul Besing

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halbenjamin(at)optonline.
Guest

Posted: Tue Jan 22, 2008 7:58 pm Post subject: Heat boxes for RV-4

Hi Paul C

  6nbsp;

 Thanks for the update E 6nbsp; I 7m going to try it as well E Do you get a good 6nbsp;volume of air flow?

  6nbsp;

 Hal



---

pbesing(at)yahoo.com
Guest

Posted: Wed Jan 23, 2008 6:05 am Post subject: Heat boxes for RV-4

Yes, definitely good volume.  The heat may have a little too much, but it works for sure.  The fresh air is a little pre heated though.  I suspect its because the hot air doesn't have anywhere to vent off of the Y tube and it's preheating the tube and leaking some hot air into it.

  

 Paul Besing

 ---

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