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Old 05-08-2006, 12:39 PM   #15
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Quote:
Originally Posted by 47WeeWind
Hi Chuck:

Simple is best!
I tend to agree! especially in exchange for *ZERO* electrical consumption. but the idea that these things can suck up the air would make me a little nervous, especially where there ain't much to spare. (the FAA doesn't allow a pilot to operate at that altitude for more than a few minutes without supplimental O2...).

Anyway, my understanding was that these O2 sensors don't need electricity; the pilot goes out when O2 gets low. but thats "fixed" by the factory, and can't adjust for you mountain-campers. the other "features" like the thermostatic operation and all are what use up the juice. but perhaps that varies by brand (?)

now that I think of it, I'm not sure now that the device on mine is a pilot; just the thermocouple and gas supply. I guess its just that it looks like the pilot/thermocouple on the furnace and hot water heater, but I don't think there is ever a steady flame there, now that you mention it. My oldie sounds very much like the "wave 6" you describe. Haven't used it in several years, as there's a small child running around in the trailer. (burn hazzard). Now I'm gonna have to go look!

what I can't get over, though, is the disclaimer on the "mr. heater", which has one of these O2 sensors: "...don't ever go to sleep with this thing on". (something to that effect). maybe thats just a CYA sort of thing on their part, but still...
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Old 05-08-2006, 07:20 PM   #16
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I have an old 6100a (pictures in my gallery) that I took apart and cleaned not long ago. I slept on the gaucho in front of it last year. I read all the warnings on it, and I left the right-front window and the galley window on the "bumps" or upright closures. I woke up and it was 9 below freezing outside. It was comfy in the trailer when I woke. This was March 26, 2005, and I was in Toledo, of all places.

Lamar
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Old 05-10-2006, 12:45 PM   #17
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Thanks for info

Somehow we seem to get into the mountains quite often and I never considered the altitude problem with the ODS style. We are heading to Wyoming and Montanna in June so it looks like the 6100 will be the choice.
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Old 07-20-2008, 09:06 PM   #18
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I plan on doing a good amount of dry camping out west in the mid spring above 5000 feet and in the fall in the northeast.
To conserve my batteries(have 2 solar panels putting out 178 watts and 3 AGM batteries) I am considering installing a catalytic heater. I have a 2006 25' Classic. Possible locations for installation are: 1) remove the magazine rack near the front door and install heater, 2) on the outside wall of the bathroom(halfway between the bedroom and living room).
I'd appreciate any info on this topic.
Thanks.

Mark
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Old 07-20-2008, 10:24 PM   #19
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I would go for a location where you have easy access to a propane line. When the PO installed a CAT heater in my 75 they put a T in the line going to the furnace and installed the heater on the galley wall.
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Old 07-20-2008, 10:34 PM   #20
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Anybody use a cat above 9000ft?

I would really like to do some dry camping at the base of the ski area next year. Furnace with fan would just be too difficult from an electricity perspective so the Cats seem appealing.
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Old 07-20-2008, 10:34 PM   #21
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Originally Posted by halimer View Post
...I'd appreciate any info on this topic.
Thanks.Mark
mark see post #3 in this thread.

or check these out...

http://www.airforums.com/forums/f427...-ir-38149.html

http://www.airforums.com/forums/f427...tml#post435009

cheers
2air'
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Old 07-20-2008, 10:48 PM   #22
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Quote:
Originally Posted by joe3957 View Post
I would really like to do some dry camping at the base of the ski area next year. Furnace with fan would just be too difficult from an electricity perspective so the Cats seem appealing.
I have used mine above 9K, but I have an older unit that does not have an O2 sensor. The newer one, for safety, will shut down when the amount of O2 in the air drops below a certain percent. This could cause problems at higher altitudes.
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Old 07-20-2008, 11:22 PM   #23
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catalytic heaters at altitude....

many of the newer models are designed to operate UP TO 12,000 feet,

meaning the combustion and 02 sensor should work normally.

and the "amount" of oxygen in the air at these HIGHER altitudes doesn't really change.

it is still ~21% for dry air.

what DOES happen however, is that the atmospheric pressure drops.

in other words the air doesn't get thinner, it gets 'lighter'...

as this pressure drops, the partial pressure of 02 drops too...

normally, oxygen crosses into the blood stream (and red blood cells) as a result of this PRESSURE gradient.

so folks who have trouble at altitude can't really improve the situation by breathing faster or more....

they need to go LOWER or have supplemental oxygen, or both.

smokers (lungers), folks with heart disease, those who are anemic or have circulation issues are more likely to have issues at altitude.

using a catalytic heater at altitude is basically the same as at sea level, except...

-dryer air will mean LESS moisture inside the trailer.
-more heat will be LOST from the window and vents that need to be open...
-the dryer air AND heat loss, means DRINK MORE FLUIDS or risk dehydration which make the oxygen issue worse.
-high altitude has it's own risks and lowering the 02 inside by combustion can magnify those issues.

since headaches, confusion, rapid breathing, faster heart rates and other things happen with BOTH altitude sickness and hypoxia...

it would be very hard to know which problem is making a person SICK.

a fully vented cat like the one linked earlier is a safer approach.

then only the altitude issues remain.

google 'partial pressure' and oxygen and follow some of the links...

cheers
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Old 07-26-2008, 12:31 AM   #24
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Mark,
We have an 05 25' International and installed an Olympian Wave 6 over a year ago. We've used it almost every month since without problems, especially since we took it off its feet and mounted it on a hinged aluminum plate. Picture here or Dreamstreamr Odyssey Chasing 75 Degrees

Cut the stove/oven gas supply, installed flare tee, provided a gas-service cut-off valve in-line before the heater flexible feed hose.

We do NOT use this sleeping. We have sufficient covers to sleep in any temperature we would expose our camper to, including sub-20s. Why would we choose to be anywhere colder? Trying to Chase 75 Degrees, after all. If we will be in colder temps we'll have to winterize or run furnace to keep pipes and tanks alive. Nah, not in the plans.

We use our catalytic for comfort. The hinged mount allows convenient aiming toward the dinette or either section of the L-sofa. Verrry comfortable. And yes, we vent when running it.
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Old 10-04-2008, 04:10 PM   #25
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We don't keep the furnace on over night when in the back country. After awakening several mornings last month with the inside temp of 37 degrees I'm considering the installation of an Olympic Wave Catalytic Heater. We have an '07 23 Safari and the only good place to mount it would be in the shallow cabinet below the oven, removing the cabinet door. Only the Olympic Wave 3 would fit. Does anyone have any recommendations/experience dealing with this?
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Old 10-04-2008, 07:51 PM   #26
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Why?

Quote:
Originally Posted by Antique Pedaler View Post
We don't keep the furnace on over night when in the back country.
Just curious, why aren't you using the furnace?

We boon-dock in the Adirondack's quite often, and have always used the furnace, usually set at 65 degrees, wake up and still have about 12.5 in the batts. They re-coup to about 12.8 during the day while we are doing other things, and after about a two hr gen run at dinnertime are back ready for another chilly night if needed.
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Old 10-05-2008, 10:52 AM   #27
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[QUOTE=ROBERT CROSS;623991] Just curious, why aren't you using the furnace?

We have an 85 watt solar panel which left us with 50 % battery after three nights and two days of sun. setting the furnace at even 50 degrees over night would have been intermittently noisy and more than the solar could cope with. We don't care to have a generator.
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Old 10-29-2008, 12:25 AM   #28
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Catalytic Heater for Bambi

We've been researching Catalytic heaters so that as we move toward more dry camping we can have heat without having the heavy battery draw of the furnace fan. The Wave 3 mentioned above is the smallest of that family of catalytic heaters that we've been able to find...and it's nice and has great features, but the problem is that we have no appropriate place to install a wall-mounted unit in the Bambi.

We found a good solution for our needs, however, since the Bambi is a small space to heat...the Coleman ProCat PerfectTemp Catalytic Heater. It runs on a standard propane canister and has a small fan built in. (1 canister = ~ 7-8 hours if run continuously, though I can't imagine needing to do that; two "D" batteries run the fan for ~20 hours.) This is a low-tech device...there is no thermostat, so it's off or on, but it does have an igniter so you don't have to light it with a lighter or match.

Of course, as with any catalytic heater it requires a fresh air source via an open vent or window, and its use is not recommend while sleeping, which we don't need to do. And as with any heater, you need to keep flammables away from it. Coleman has other models that are more "bare-bones" versions with no housing and no fan; the guts are pretty much the same but without the fan...those models are more geared toward backpackers and tenters who want to keep down weight and bulk. The housing makes it very stable-standing and the fan helps circulate the heat... We tested it on our last camping trip where we were having sub-freezing nights (mid-to-high 20s) and we were very pleased with its performance...1/2 hour got the Bambi very toasty before going to bed...then we cranked it up again in the AM for a while, and there you have it.

Below are some pics...they'll give prespective it's size...it's about 15" tall and 12" wide & deep, and is light weight. The canister screws in through the back side and the controls are on the back. The face of the heater gets hot, of course, but the housing (heavy plastic) and the metal ring around the heating head do not get hot. The fan is quiet. The dogs were not freaked out by it (unlike the furnace)...in fact, they parked themselves a safe distance from it and enjoyed the warmth it put out.

We found it priced anywhere from $80 to $170, depending on the source.
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