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Old 11-22-2015, 09:43 PM   #1
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How long with no fresh air?

Hello fellow airstreamers,
I worry about fresh air in our 16' Bambi. With everything closed up and an external electric heater going (shore power) should I have worries? And what about when we use the propane heater?
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Old 11-22-2015, 10:03 PM   #2
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We always crack a window when sleeping with the furnace on, and quite often do so the rest of the year just for fresh air's sake.

I'm kind of picky about fresh air. I even do it at home if we are using the fireplace.

Dana


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Old 11-22-2015, 10:07 PM   #3
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Same. We always crack a window. We have two adults & a five year old in our 22, so I find we need the fresh air, or we wake up with condensation on the windows
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Old 11-22-2015, 10:09 PM   #4
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I don't know if you're asking about storage or in use but opening the bathroom vent (without the fan) will help and if you have cover over your fantastic fan, crack that an inch or so. Should be all you need!
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Old 11-22-2015, 10:54 PM   #5
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I found this interesting ...
http://members.shaw.ca/tfrisen/how_m...r_a_person.htm
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Old 11-22-2015, 11:02 PM   #6
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If you are lucky enough to have an air-tight Airstream, you should open a window!

Otherwise, just plug the holes with a screen to keep the rodents out?

Dave

Quote:
Originally Posted by Silvr_Lining View Post
Hello fellow airstreamers,
I worry about fresh air in our 16' Bambi. With everything closed up and an external electric heater going (shore power) should I have worries? And what about when we use the propane heater?
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Old 11-22-2015, 11:32 PM   #7
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Originally Posted by Silvr_Lining View Post
Hello fellow airstreamers,
I worry about fresh air in our 16' Bambi. With everything closed up and an external electric heater going (shore power) should I have worries? And what about when we use the propane heater?
HVAC designers use 1 or 2 air changes per hour for residential spaces in general, but 15 air changes per hour for kitchens and bathrooms to deal with odors and water vapor in the air, and 12 air changes for dining areas to deal with odors. This mostly has to do with the size of ducts and AC registers in different rooms, but the same principle can be applied to a trailer as well.

Rather than calculate different rates of air changes for different parts of your trailer, an average of 4 air changes per hour should be considered the minimum for air quality purposes.

One air change is letting in a quantity of fresh air equal to the total volume of the trailer in cubic feet, and exhausting stale air in the same amount. Given the approximate width and height of an Airstream's body, that's approximately a number of cubic feet per minute (not per hour) equal to the length of your trailer. So if you have a 25-foot trailer, to get 4 air changes per hour you want 100 cubic feet per minute of air flow. For a 30-foot trailer, you'd need 120 cfm.

For proper air changes you've got to have both an inlet and an outlet. A 4-inch bathroom vent fan will extract about 100 cfm, as long as you've got a window open to let in the same amount of air. A Fantastic Fan or MaxxFan 14-inch roof vent will move about 180 cfm on its lowest speed setting.

So for Silvr_Lining in a 16' Bambi, cracking open one window and running your bathroom vent should be enough to ensure that the air doesn't get stale. For someone in a 34' Sovereign, leaving a Fantastic Fan running on low and one or two windows cracked open should do the trick.
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Old 11-22-2015, 11:35 PM   #8
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These trailers are far from air tight, so a lack of oxygen shouldn't be a concern (barring any faulty propane fired appliances). You will want to crack windows or a roof vent to reduce interior condensation.
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Old 11-23-2015, 05:34 AM   #9
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It's not even about people liking fresh air.

It's about not getting dead.

The safest heater as far as asphyxiation is electric, obviously.

I don't know how safe it is to sleep in a closed up camper with no heater.

I don't know how safe the propane furnaces are but they at least have a fresh air supply. Are CO2 warning systems just in case there is a malfunction??

The stand alone catalytic propane heaters are dangerous if used in a confined area. you NEED to crack a window. I read that 8 people a year die due to these heaters
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Old 11-23-2015, 06:04 AM   #10
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I use a co detector, not co2, ans still crack a window for condensation relief and peace of mind. If you are worried about your furnace please have it checked by a professional. Others are correct, an electric heater is great if you have hookups or a generator, we use one of the oil filled ones with a small fan behind it on low to circulate the heat. Good luck, have fun.
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Old 11-23-2015, 07:41 AM   #11
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Hello fellow airstreamers,

I worry about fresh air in our 16' Bambi. With everything closed up and an external electric heater going (shore power) should I have worries? And what about when we use the propane heater?

The propane heat brings in outside air to burn, then exhausts that outside. A CO monitor will do just that, detect carbon monoxide (a product of burning propane gas) which could come from the range/oven, a catalytic heater, or (if damaged) the furnace.
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Old 11-23-2015, 10:23 AM   #12
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Thanks all,
It just can get darn cold but I do like to keep a window open a little.
I didn't think about condensation... A VERY good reason to keep air flow going!
-Marc
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Old 11-23-2015, 10:50 AM   #13
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Are CO2 warning systems just in case there is a malfunction??
Perhaps you are forgetting that the stove burns propane inside where it can make carbon monoxide in the trailer. And it's why one shouldn't use the stove for a heat source.
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Old 11-23-2015, 11:03 AM   #14
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I agree with everyone the best thing to do just crack a window. First off, you are getting fresh air and come on what gets better than that. Second I know your asking about it being a safety issue. I would still have window crack. Not 100% sure having all that is to safe.
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