Replies

1. 
   RyanC | Dec 04, 2006 02:38am | #1

   Ya know, I was thinking about this the other day.  The reaction of a hydrocarbon (such as propane) and oxygen ,like when you burn something, is a combustion reaction  which always produces water and carbon dioxide.  So where does the carbon monoxide come from.  Am I missing something obvious here?

   -Ryan C.

   EDIT: I just followed your link and its for a 1/8 in. 3-wing slot cutter.  Just thought you might want to know.

   
   

   ---

   Edited 12/3/2006 6:43 pm ET by RyanC

1. 
   Rich14 | Dec 04, 2006 02:51am | #2

   The link changes every time I correct it.Try this.<a href='http://www.homedepot.com/prel80/HDUS/EN_US/diy_main/pg_diy.jsp?CNTTYPE=PROD_META&CNTKEY=misc%2fsearchResults.jsp&BV_SessionID=@@@@1269218466.1165189631@@@@&BV_EngineID=ccghaddjiegljlgcgelceffdfgidglm.0&MID=9876' http://www.homedepot.com/prel80/HDUS/EN_US/diy_main/pg_diy.jsp?CNTTYPE=PROD_META&CNTKEY=misc%2fsearchResults.jsp&BV_SessionID=@@@@1269218466.1165189631@@@@&BV_EngineID=ccghaddjiegljlgcgelceffdfgidglm.0&MID=9876target='_blank'>http://www.homedepot.com/prel80/HDUS/EN_US/diy_main/pg_diy.jsp?CNTTYPE=PROD_META&CNTKEY=misc%2fsearchResults.jsp&BV_SessionID=@@@@1269218466.1165189631@@@@&BV_EngineID=ccghaddjiegljlgcgelceffdfgidglm.0&MID=9876</a>Or if anyone wants to take the trouble, go to HomeDepot.com, search on that site for "propane heater" and look at the indoor, 28K BTU model.Sorry for the link problem.Rich

2. 
   pcooper | Dec 04, 2006 04:25am | #3

   I have a propane heater in my over built shop, rarely gets turned on for more than an hour or so. After I turn it off, I can go five or six hours without it, and run a dehumidifier most of the time anyway. I'm so well insulated that a 100# cylinder will go all winter long. Maybe that is the key to not having to worry about too much moisture in the shop from the propane?

1. 
   gspman | Dec 04, 2006 04:45am | #4

   I have a Rinnai 553 direct vent propane heater in my 24x28 shop here in NH.  I've had it only a week or two, but it's small, quiet, and it goes down to 50 degrees and up to 68 in about 10 minutes.  I love it.  It's the size of a small suitcase, mounted on a shelf (code says 18" off floor, due to being technically a garage).  The flame and the blower both modulate, so it's not that all-on or all-off type of thing.  Hasn't run very much so far, but it's only a few weeks. ..

3. 
   MikeHennessy | Dec 04, 2006 02:55pm | #6

   "So where does the carbon monoxide come from."

   Carbon Dioxide (CO2) is produced by burning carbon in an atmosphere containing sufficient oxygen to fully combine. Skip the ventilation, those oxygen molecules floating around in the air are used up, and the carbon binds to a single Oxygen molecule leaving CO. That's why heating devices always say to use with plenty of ventilation.

   Mike HennessyPittsburgh, PA

1. 
   RyanC | Dec 04, 2006 03:26pm | #7

   Ah! Ok, thanks Mike.

   -Ryan C.

2. 
   BilljustBill | Dec 04, 2006 06:05am | #5

       Rich,

      I heat with Propane, here in North Central Texas.  I have an old Lennox "Pulse Heat" central system I transplanted into the shop, since it has an original owner "lifetime" warranty...  It is a system that pulls in outside air and is still so efficient in pulling out the combustion's heat, the flu vent is made from PVC.  One place on the web I skipped across some years back showed a picture of an attic vent almost frozen over with ice buildup and "Hoar Frost" from the water vapor coming from an unvented propane heater.  'Wished I'd save the picture, it was scary!

      I've found that insulation of the workshop is the key.  You can heat just about any place, including a wide open patio, but it's just a matter of how much Propane you're willing to buy.

      What I'd like to hear about is what price per gallon are the forum members paying?  Last month, I paid a $1.92 per gallon for a purchase of over 100 gallons.  Last week, I heard on a CNN program that if two of the countries near Iraq get into it, by Feb. gasoline could be at $4.00 a gallon...  Who knows what it's going to...

      Bill