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bed platform and engine compartment heat?
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Supporting Member of Barthmobile.com 4/23
Picture of Mike/Cindi W
posted
On my recent trip stopping in a warm climate for the night, I found my bed platform and bedding was very warm preventing me from using it for several hours. Anyone have any solutions to bleed the heat out of the engine compartment or insulation that would prevent engine heat from transferring upward into the above platform bed? On other forums, people seem to have a storage space under the bed to insulate but my bed platform has immediate access thru a panel to the engine compartment. The couch worked fine for those hours before bed area cooled. I suppose if it was 20 degrees outside, it wouldn't be a problem but outside was 80, even at 2100 that night.. I did do a search but couldn't find any info. I think this has been discussed before. If anyone has a link to that thread, feel free to post.. Thanks..


M/C-W

1991 early XL-style (maybe 1 of 2?) Breakaway... but prior to that actual (XL) designation...
2nd Breakaway w/Cat 3208T 250 hp motor 4 spd MT643 Allison trans Gilig Air suspension chassis/brakes
Data Tag: 9010 3694 34-BG-1B
 
Posts: 425 | Location: Coachella Valley, SoCalif... | Member Since: 08-23-2015Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 8/19
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Two solutions, Mike! Salute
1. Do your traveling when it is colder and you will appreciate the warmer bed. Wink
2. Run the generator to power the roof air and turn the bedroom air to 45 degrees. Thumbs Up The bedroom can double for a meat locker also. Keep the bedroom door closed. cheers
Big Grin Smiler Bet you had a big grin when you had got home safe and tired. Big Grin
 
Posts: 2478 | Location: Ohio | Member Since: 07-29-2012Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 4/23
Picture of Mike/Cindi W
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roof air won't solve the heat problem coming from below... Do all pushers have just a thin panel separation between the bed platform and engine compartment? I mean its just a 3/4" piece of plywood being used as an entry port..covered with thin carpeting..


M/C-W

1991 early XL-style (maybe 1 of 2?) Breakaway... but prior to that actual (XL) designation...
2nd Breakaway w/Cat 3208T 250 hp motor 4 spd MT643 Allison trans Gilig Air suspension chassis/brakes
Data Tag: 9010 3694 34-BG-1B
 
Posts: 425 | Location: Coachella Valley, SoCalif... | Member Since: 08-23-2015Reply With QuoteReport This Post
Official Barth Junkie
Supporting Member of Barthmobile.com 1/24
Picture of Steve VW
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You will want some form of insulation on the engine side. Be sure there are no air gaps first.

My coach has some sort of foam material with a metallized skin, not sure how thick. I will investigate.


9708-M0037-37MM-01
"98" Monarch 37
Spartan MM, 6 spd Allison
Cummins 8.3 325+ hp
 
Posts: 5159 | Location: Kalkaska, MI | Member Since: 02-04-2011Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 8/19
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Sleep number bed with cooling mattress might work.
If you search Nick Cagle's posts, I think he insulated the engine compartment on a rig he had. I am not sure if it was a Barth. On the other hand if you insulate the engine compartment, would you need to provide extra cooling fans for the power plant? What was your engine temperature running at when you were driving the 3208 thru the mountains?
 
Posts: 2478 | Location: Ohio | Member Since: 07-29-2012Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 4/23
Picture of Mike/Cindi W
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wasn't running hot, maybe 180 or so..Only short runs of uphill, mostly gentle grades to Flagstaff/Continental Divide at 7300'.. I usually leave it running for 5 minutes before I shut it down.. Maybe not moving allows heat to go only upward..just guessing.. I'll check Cagle's posts..


M/C-W

1991 early XL-style (maybe 1 of 2?) Breakaway... but prior to that actual (XL) designation...
2nd Breakaway w/Cat 3208T 250 hp motor 4 spd MT643 Allison trans Gilig Air suspension chassis/brakes
Data Tag: 9010 3694 34-BG-1B
 
Posts: 425 | Location: Coachella Valley, SoCalif... | Member Since: 08-23-2015Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 3/23
Picture of ccctimtation
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Advantage of a Breakaway, engine access from the bedroom.
Disadvantage of a Breakaway, engine access from the bedroom. If connected to shore power you might add a fan to the engine compartment with a temp/timer control. Save that option insulation is the only option. Rusty, I remember touring your coach but don't remember the insulation level under the bed, chime in.
 
Posts: 1066 | Location: St. Charles, MO, USA | Member Since: 10-09-2003Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 4/23
Picture of Mike/Cindi W
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quote:
Originally posted by Kevin:
If you search Nick Cagle's posts, I think he insulated the engine compartment on a rig he had.

Engine Compartment Insulation..

Thanks for the info Kevin...

a few (search page)links from the WOG Forum
WOG FORUM

From the Newell site:

another idea, Bilge blowers...


M/C-W

1991 early XL-style (maybe 1 of 2?) Breakaway... but prior to that actual (XL) designation...
2nd Breakaway w/Cat 3208T 250 hp motor 4 spd MT643 Allison trans Gilig Air suspension chassis/brakes
Data Tag: 9010 3694 34-BG-1B
 
Posts: 425 | Location: Coachella Valley, SoCalif... | Member Since: 08-23-2015Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 3/23
Picture of Duane88
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quote:
Originally posted by Kevin:
Two solutions, Mike! Salute
1. Do your traveling when it is colder and you will appreciate the warmer bed. Wink
2. Run the generator to power the roof air and turn the bedroom air to 45 degrees. Thumbs Up The bedroom can double for a meat locker also. Keep the bedroom door closed. cheers
Big Grin Smiler Bet you had a big grin when you had got home safe and tired. Big Grin


I would like to add a third and fourth solution to Kevin's argument

3. Trade in the rear engine diesel on a front engine gas or diesel
4. Find a spouse with very cold feet


1971 24 ft Barth Continental
P30 chassis
350 engine
 
Posts: 2042 | Location: Clinton Iowa | Member Since: 04-02-2017Reply With QuoteReport This Post
"5+ Years of Active Membership"
Supporting Member of Barthmobile.com 9/11
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My Regency's DD engine access was made of 3/4 inch plywood with at least 3/4 inch insulation with a reinforced edging.

Not sure what it was made off, however like Steve VW said the silver/metallic finish faced the engine, very little heat transmitted through into the bedroom.



Jim
 
Posts: 457 | Location: Port Charlotte Florida USA | Member Since: 06-08-2003Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 03/22
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Hi Mike: My Breakaway gets warm in the bedroom after a long drive when hot outside. My engine access is virtually the entire width and length of the bed, (short queen)but it is about 2 inches thick and HEAVY! I usually don't run the diesel long after stopping, just long enough for the EGT to drop below 300 degrees.

I have an insulated wall around the engine vertically as well. I have often thought about additional insulation for both noise (not bad) and heat.

I wouldn't trade a pusher for any reason.


Ed
94 30' Breakaway #3864
30-BS-6B side entry
New Cummins 5.9L, 375+ HP
Allison 6 speed
Spartan chassis
K9DVC
Tankless water heater
 
Posts: 2176 | Location: Los Gatos, CA | Member Since: 12-08-2005Reply With QuoteReport This Post
Picture of Doug Smiley
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http://www.radiantbarrier.com/physics-of-foil.htm

How Radiant Barrier Works: Heat Gain/Loss Wink

http://www.buildagreenrv.com/d.../install-insulation/


_________________________

The 82 MCC {by Barth}
is not an rv--
it is a Motor Coach!!


 
Posts: 2584 | Location: Nova Scotia | Member Since: 12-08-2006Reply With QuoteReport This Post
Picture of L78steve
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The Cat 3208 stores a lot of heat. I noticed this on my last Barth.
The Cummins C not so. At first I figured Barth added more insulation on the 93 but after inspection it was the same as the 90 Regency.
As long as I pull in at dinner the bed is cool at sleepy time.



1993 34 Regency WB
8.3 Cummins 300HP
 
Posts: 194 | Location: Hendersonville NC | Member Since: 02-02-2016Reply With QuoteReport This Post
Official Barth Junkie
Supporting Member of Barthmobile.com 1/24
Picture of Steve VW
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The Cat V8 is a big chunk of iron. The straight 6 Cummins weighs less I'll bet. Might be worth installing a small fan in the engine bay to clear the hot air... hmm


9708-M0037-37MM-01
"98" Monarch 37
Spartan MM, 6 spd Allison
Cummins 8.3 325+ hp
 
Posts: 5159 | Location: Kalkaska, MI | Member Since: 02-04-2011Reply With QuoteReport This Post
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