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Portable propane heaters, Mr. Buddy, others? Moisture issues
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VanWilder
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PostPosted: Wed Jan 11, 2012 11:14 am    Post subject: Reply with quote

VanWilder wrote:
b00t wrote:
No way...pretty cool! Does it keep it warm?


It raises the temp about 10-15 degrees. I use it all winter long. Wink

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joseph928
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PostPosted: Wed Jan 11, 2012 11:40 am    Post subject: heater Reply with quote

Blue Bay Bus I love my mr. buddy heater, heats up fast. But does make condensation, and there is the o2 issue. I've found to get around some of this when it is not to cold I just turn the heater on pilot light, yes it can keep you warm , but then again we live in Arizona! Very Happy
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gl98115
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PostPosted: Wed Jan 11, 2012 11:44 am    Post subject: Reply with quote

Jon_slider wrote:

So one propane bottle and 3 people sleeping overnight, can consume the entire volume of air in a vanagon.

Turning off the heater when sleeping is a no brainer. It means 3 people sleeping overnight will only use 24% of the air in a Vanagon.

To put it differently, it would take 20 sleeping people, to equal the amount of air a 1gal propane tank uses per hour.

Unfortunately, the problem with the unvented propane heater is worse. When the concentration of oxygen starts dropping, their isn't enough oxygen in the air to burn the propane completely, and you start getting incomplete combustion with the byproduct carbon monoxide.

2 C3H8 + 7 O2 ------> 2 C + 2 CO + 8 H2O + 2 CO2

The 2 C is the carbon soot that you see. The 2 CO is the carbon monoxide that you don't see, but can kill.

The acute effects produced by carbon monoxide in relation to ambient concentration in parts per million are listed below:

Concentration Symptoms
35 ppm (0.0035%) Headache and dizziness within six to eight hours of constant exposure
100 ppm (0.01%) Slight headache in two to three hours
200 ppm (0.02%) Slight headache within two to three hours; loss of judgment
400 ppm (0.04%) Frontal headache within one to two hours
800 ppm (0.08%) Dizziness, nausea, and convulsions within 45 min; insensible within 2 hours
1,600 ppm (0.16%) Headache, tachycardia, dizziness, and nausea within 20 min; death in less than 2 hours
3,200 ppm (0.32%) Headache, dizziness and nausea in five to ten minutes. Death within 30 minutes.
6,400 ppm (0.64%) Headache and dizziness in one to two minutes. Convulsions, respiratory arrest, and death in less than 20 minutes.
12,800 ppm (1.28%) Unconsciousness after 2-3 breaths. Death in less than three minutes.

http://en.wikipedia.org/wiki/Carbon_monoxide_poisoning
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IdahoDoug
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PostPosted: Wed Jan 11, 2012 4:20 pm    Post subject: Reply with quote

My Big Buddy came with info detailing the needed size of the vent opening (car window cracked, house window cracked, etc) and I think it is 18 square inches or so. So, one window cracked an inch would do it (window appx 2 feet long). That is what I did in the Cruiser the other day.
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Kejidog
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PostPosted: Fri Jun 29, 2012 10:00 am    Post subject: Reply with quote

VanWilder wrote:
Propane? We don't need no stinking propane!


Link

Calculations for this are as follows:

Ingenuity + Mini Keg + Wood = HEAT

Just one's body heat in cold temps alone will make plenty of condensation. No way around it. Towels on the dash and wipe the windows regularly.

Happy heating Wink



that is so cool! well hot i guess. Looks like the wood stove at my parents cottage years ago!
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jstar89crx
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PostPosted: Fri Jun 29, 2012 1:12 pm    Post subject: Reply with quote

I have been installing Webasto Air Top heaters in vans. They are available in gasoline or diesel models. Can't beat 7000BTU's of bone dry forced air heat. I have put several in TDI powered vans and just put a gas one in a buddy's Eurovan Weekender. Pretty awesome camping in the rain and bringing the wet dog and gear into the van for the night to dry it out. Spendy but worth every penny in my opinion.
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