Yes, a big by-product of combustion is water and the way to avoid getting the cabin walls and overhead covered in condensation is something like Sean's solution or some other vented method. Someone did a stoichiometric equation once, demonstrating the amount of water produced per pound of propane....pretty interesting: With perfect combustion of propane and oxygen, One Propane molecule five oxygen molecules C3H8 + 5O2 becomes (sorry about the lack of subscripting) three carbon dioxides four waters 3CO2 + 4H2O Or, put another way and figuring the weight of the molecules, if you burn a pound of propane you get over 1 1/2 pounds of water! (the increase is due to the oxygen that joins in) Of course, that is assuming perfect combustion, which you won't quite get. Tod Mills M17 #408, 1987 galley model BuscaBrisas -----Original Message----- From: montgomery_boats-bounces@mailman.xmission.com [mailto:montgomery_boats-bounces@mailman.xmission.com] On Behalf Of Larry E Yake Sent: Wednesday, September 26, 2007 8:02 PM To: montgomery_boats@mailman.xmission.com Subject: Re: M_Boats: Heater I tried the same heater, Tod, but found that having the hatch open far enough to make me satisfied I wasn't going to suffocate let in more cold air than the heater could warm up. I didn't realize catalytic heaters produced moisture. It would be nice to find something that helped eliminate condensation while warming the cabin. Larry On Wed, 26 Sep 2007 18:40:06 -0400 <htmills@zoominternet.net> writes:
I tried a Coleman SportCat catalytic heater, but the amount of water vapor produced negated the benefits of some heat, I thought, so I quit using it.
Tod Mills M17 #408, 1987 galley model BuscaBrisas
-----Original Message----- From: montgomery_boats-bounces@mailman.xmission.com [mailto:montgomery_boats-bounces@mailman.xmission.com] On Behalf Of Nebwest2@aol.com Sent: Wednesday, September 26, 2007 9:41 AM To: montgomery_boats@mailman.xmission.com Subject: M_Boats: Heater
Yes it's true,
Sleeping on the boat while it was on the trailer (boat is unable to weather
vane) the wind came up pretty strong from the stern. Our CO alarm did go off even though the heater was outside. We finally figured out the wind must have been blowing across the heater and up to the weather boards allowing a little exhaust in?? Turned the trailer around, aired out the boat, reset the alarm, and didn't have any other problems. As long as the heater is outside, and I have the CO alarm inside I feel comfortable. But that's just me. You have
to make your own decision. I know a lot of folks that "crack" the hatch and use things like Origo heat pals or Coleman catalytic heaters inside. That I wouldn't be comfortable with. You'll have to make your own call.
Gary's advice is sound. You can't get CO poisoning if you don't make any CO!
************************************** See what's new at http://www.aol.com _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.13.28/1021 - Release Date: 9/21/2007 2:02 PM
No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.13.28/1021 - Release Date: 9/21/2007 2:02 PM
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.13.28/1021 - Release Date: 9/21/2007 2:02 PM No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.13.28/1021 - Release Date: 9/21/2007 2:02 PM