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  #61  
Old 07-13-2011, 08:45 PM
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Originally Posted by duxthe1 View Post
.....They weren't the approved refrigerants b/c they are what's safest and best performing, they are the only approved refrigerants b/c Dupont has the market cornered and enough politicians pockets to keep better performing 1$/pound refrigerants off the market.
R12 was Designed and used because of its physics properties... when it turned to liquid and back to gas and the pressures involved in that... along with the ability to carry the oil around the system to lube the compressor...

You probably believe that Contrails are evidence chemicals are being sprayed on us to keep us under control.....as compared to water molecules pushed together by planes traveling from one place to another...

  #62  
Old 07-13-2011, 08:54 PM
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I'm not following your logic, propane's latent heat of evaporation is almost 3 times better than r12 (184 btu/lb versus 66 btu/lb), and is compatible with more oils....They designed it to not be as good?
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  #63  
Old 07-13-2011, 08:55 PM
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Quote:
Originally Posted by leathermang View Post
...You probably believe that Contrails are evidence chemicals are being sprayed on us to keep us under control.....
YOU MEAN THEY AREN'T CHEMTRAILS????
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  #64  
Old 07-13-2011, 09:11 PM
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Originally Posted by compu_85 View Post
Cost (less), Cooling (better), Pressures (less then R12 if you go 60/40 with propane / isobutane AKA R600), compatibility with mineral oil, less affect on the environment (no ozone or greenhouse affects).



-J
I agree.
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  #65  
Old 07-13-2011, 09:18 PM
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I agree.
Do you understand they use it for Bar B Que grills ?
  #66  
Old 07-13-2011, 09:23 PM
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A mixture of butane and propane is the best in my opinion.

It is no more or less dangerous than most other refrigerant.

It has produced cooler temperatures for me.

It is far less expensive.

Far less hazardous to the environment than some refrigerant.

And this information could save people hundreds if not a grand or more
in there efforts to have a better performing ac.

Instead of changing condensors, adding fans, changing, or buying new pumps.
They can simply switch refrigerant.
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  #67  
Old 07-13-2011, 09:26 PM
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Well, Dang . . . gotta use my brain . . .

Guess I'm gonna have to look it up in the hazmat book to see which one is more explosive, as in the case of a pressurized tank of R134A, R12, or Propane. I do know that Propane being transported requires placards and is a HazMat load. I also know that over so many cans of refrigerant, and it has to be treated as hasmat, therefore, most shippers now break up the volume, ship them separately, so it doesn't have to be treated as hazmat. I suspect, without having the book in front of me, that propane is the least of DOT's worries.

Oooops, can't find the book, is obviously in my glove box in the Peterbilt parked 10 miles away.

However, a hazmat placard, to my knowledge is not required for the 5-gal tanks on RVs, so I would imagine that DOT doesn't consider that little propane to be a hazard. I also agree with an earlier statement that any piercing of condensor would result in an immediate escape before it would have a chance to catch fire. Also, gas requires a flame or spark to flame up, no just a cigarette head glowing . . . LOL. Also, even if the entire load of 2.5 lbs escaped into the passenger compartment, there are enough escapes for the gas to find, especially if a window is open, thereby, not causing any measurable risk.

But, this has been a fun read, if nothing else!!!!
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  #68  
Old 07-13-2011, 09:29 PM
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Originally Posted by leathermang View Post
Do you understand they use it for Bar B Que grills ?
Yep, sure do.

Do you know what else you can use ?

It is used in bbq grills because it is relatively less dangerous than some other hydrocarbons.

And because its cheaper.
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  #69  
Old 07-13-2011, 09:37 PM
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How do you get it in the system? Are there adapters for gauge sets?
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  #70  
Old 07-13-2011, 10:38 PM
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as an HVAC tech, I deal with propane often. it's the most dangerous form of heat there is.
more dangerous than any other type of fuel, still the most dangerous fuel as deaths and house fires are concerned is Electric due to wiring faults etc burning down buildings.
that said, a propane fuel fired furnace will require more service to keep from becoming hazardous, due to variables and such that cause soot buildup blocking flue gasses. also a leak will remain in the area due to it's heavy gas nature.
Natural gas is different, it will float above the air and dissipate. the only way propane moves is from a fire or with wind...

I'd not want to be in a car accident with propane in my car.
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  #71  
Old 07-14-2011, 12:22 AM
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Quote:
Originally Posted by vstech View Post
...I'd not want to be in a car accident with propane in my car.
Just curious... How do you feel about airbags?
I notice your fleet looks to be prior to airbag date, so I guess I have my answer.
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  #72  
Old 07-14-2011, 12:26 AM
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Originally Posted by Walrus View Post
Just curious... How do you feel about airbags?
I notice your fleet looks to be prior to airbag date, so I guess I have my answer.
You are the author of more than one Wikipedia articles... right ?
Any of them deal with how to retrofit an air bag into our cars safely ?
  #73  
Old 07-14-2011, 12:49 AM
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Originally Posted by leathermang View Post
You are the author of more than one Wikipedia articles... right ?
Any of them deal with how to retrofit an air bag into our cars safely ?
Yep! I be big-time author...(actually, not Wikipedia, but wiki here for the record)!
Was paid handsomely for the articles. Still living off of the residuals...

LOL

(although my 560 does have one...hmmmm)
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  #74  
Old 07-14-2011, 01:03 AM
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Why would you imply that Vstech does not believe in airbags just because his cars are prefactory installed air bag years ?
Especially since I have never heard of anyone retrofitting them into cars that did not come stock with them ?
Most of us acquire the cars we can based on condition and cost ...and happenstance.. since we have to depend on the used car marketplace...
  #75  
Old 07-14-2011, 01:07 AM
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Originally Posted by leathermang View Post
Why would you imply that Vstech does not believe in airbags just because his cars are prefactory installed air bag years ?
Especially since I have never heard of anyone retrofitting them into cars that did not come stock with them ?
Most of us acquire the cars we can based on condition and cost ...and happenstance.. since we have to depend on the used car marketplace...
You missed the point...
I was proffering a bad joke on explosive devices inside the passenger compartment, compared with the allegedly explosive propane refrigerant...

Just as I finished the post, I realized most of his fleet was pre-airbag, so my joke was moot.

You Too Serious, me thinks

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