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Heater Boxes / Firewall Sealer

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Phil.Perry(at)netapp.com
Guest

Posted: Wed Sep 23, 2009 6:54 am Post subject: Heater Boxes / Firewall Sealer

I installed my aluminum heater boxes and even held them into position with proseal – per the plans.  

   

Now I’m having second thoughts for a couple of reasons.  

<![if !supportLists]>1)      <![endif]>They’re aluminum and should they melt, there is a great hole to blast a fire up the tunnel and over the fuel.  

<![if !supportLists]>2)      <![endif]>The proseal has a flashpoint of ~200 degrees.  

   

I plan on popping these boxes off and replacing with stainless boxes.  

   

Q) What material did you use to seal them?  I could use Red RTV, but I’m thinking firewall sealer (brand?) is a better option.    

   

I’m also thinking of installing a thermal barrier between the boxes and the firewall.  Maybe just a bed of firewall sealer, or a box-sized square of thermal insulation.  

   

Q) Anyone else do that?  

   

Thanks,  

Phil  

   

   

   

   

   

      [quote][b]

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dogsbark(at)comcast.net
Guest

Posted: Wed Sep 23, 2009 7:22 am Post subject: Heater Boxes / Firewall Sealer

Phil, 

  

The stainless boxes I installed came with a small tube of sealer that was rated to 1,600 degrees.  I think some RTV is rated to 600 degrees.  Can't remember what firewall proseal is rated, but all of these are better than regular proseal. 

  

Don't forget to install the two nutplates on the heater boxes for the cables before installation. 

  

Sean Blair 

COS 

  

  



---

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rv10builder(at)verizon.ne
Guest

Posted: Wed Sep 23, 2009 7:22 am Post subject: Heater Boxes / Firewall Sealer

Phil; A couple of weeks ago we went through a thread on the  benefits of SS. I mentioned for the exact reason you covered that having SS is a  good investment. 

 To save you the time- [url=http://www.planeinnovations.com/new%20heater.htm. ]http://www.planeinnovations.com/new%20heater.htm. [/url]  The heater bypass comes with a seal so you  don’t need to worry about RTV.

 I have a pair and it's a great product!

 Pascal

  



  From: Perry, Phil (Phil.Perry(at)netapp.com) 

 Sent: Wednesday, September 23, 2009 7:53 AM

 To: rv10-list(at)matronics.com (rv10-list(at)matronics.com) 

 Subject: Heater Boxes / Firewall Sealer

 



  

I installed my aluminum heater boxes and even held them into  position with proseal – per the plans. 

  

Now I’m having second thoughts for a couple of  reasons. 

1)       They’re aluminum and should they melt, there is a great hole to  blast a fire up the tunnel and over the fuel. 

2)       The proseal has a flashpoint of ~200 degrees. 

  

I plan on popping these boxes off and replacing with  stainless boxes. 

  

Q) What material did you use to seal them?  I could use  Red RTV, but I’m thinking firewall sealer (brand?) is a better option.    

  

I’m also thinking of installing a thermal barrier between the  boxes and the firewall.  Maybe just a bed of firewall sealer, or a  box-sized square of thermal insulation. 

  

Q) Anyone else do that? 

  

Thanks, 

Phil 

  

  

  

  

 

[quote]



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[b]

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Strasnuts

Joined: 10 Feb 2009
Posts: 502
Location: Salt Lake City, UT

Posted: Wed Sep 23, 2009 7:25 am Post subject: Heater Boxes / Firewall Sealer

I just used the sealant that comes with the  stainless parts from plane innovations.

 [quote]   ---

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_________________
40936
RV-10 SB N801VR Flying
780 Hours
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nukeflyboy

Joined: 05 Jan 2008
Posts: 162
Location: Granbury, TX

Posted: Wed Sep 23, 2009 8:12 am Post subject: Re: Heater Boxes / Firewall Sealer

I used a thick (1/8 in) silicone gasket under the heater box.  This idea came from Tim (I think) as an unverified way to minimize heat transfer into the tunnel.  Sounded like a good idea.



Since the sealant is not part of the fire barrier per se, I don't think it matters a lot.  High temp RTV should work fine.

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Dave Moore
RV-6 built and sold
RV-10 built and flying

rv10builder(at)verizon.ne
Guest

Posted: Wed Sep 23, 2009 8:43 am Post subject: Heater Boxes / Firewall Sealer

Mine came with the attachments, I think Paul updated  them. Call Paul at Plane innovations and ask him.

  



  From: dogsbark(at)comcast.net (dogsbark(at)comcast.net) 

 Sent: Wednesday, September 23, 2009 8:19 AM

 To: rv10-list(at)matronics.com (rv10-list(at)matronics.com) 

 Subject: Re: Heater Boxes / Firewall  Sealer

 



  

Phil, 

  

The stainless boxes I installed came with a small tube of sealer that was  rated to 1,600 degrees.  I think some RTV is rated to 600 degrees.   Can't remember what firewall proseal is rated, but all of these are better than  regular proseal. 

  

Don't forget to install the two nutplates on the heater boxes for the cables  before installation. 

  

Sean Blair 

COS 

  

  



---

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AirMike

Joined: 27 Feb 2007
Posts: 514
Location: Nevada

Posted: Wed Sep 23, 2009 8:26 pm Post subject: Heater Boxes / Firewall Sealer

Another vote here for Paul at:



 http://www.planeinnovations.com/new%20wheelpant.htm



Paul is great and VERY helpful. I consider the heater valves a must option

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See you OSH '18
Q/B - sold.

rv10builder(at)verizon.ne
Guest

Posted: Wed Sep 23, 2009 8:50 pm Post subject: Heater Boxes / Firewall Sealer

Have these too! I know the manufacturer of these personally and he makes 

quality products. Think there was a hinge cover in development, waiting for 

my order to arrive but I think I'll be equally happy with that product as 

well.

Pascal



--------------------------------------------------

From: "AirMike" <Mikeabel(at)Pacbell.net>

Sent: Wednesday, September 23, 2009 9:26 PM

To: <rv10-list(at)matronics.com>

Subject: Re: Heater Boxes / Firewall Sealer



 	  Quote: 	
		   



 Another vote here for Paul at:



 http://www.planeinnovations.com/new%20wheelpant.htm



 Paul is great and VERY helpful. I consider the heater valves a must option



 --------

 OSH '10 or Bust

 Q/B Kit - phase 1





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