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How much ventilation is needed when using a propane heater?
#7023279
01/03/18 08:11 PM
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Joined: Jul 2008
Posts: 22,257
Texas Dan
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The recent tragedy that resulted in the death of a father, son, and grandfather from carbon monoxide poisoning brings to mind a question that I'm sure others have asked themselves before. That is, how much ventilation is needed when using a propane heater.
The industry standard is 1 square inch of ventilation for every 1,000 BTUs of heater output.
Sound correct?
"Some people will never like you because your spirit irritates their demons."
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023296
01/03/18 08:23 PM
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Joined: Nov 2011
Posts: 11,010
Texas buckeye
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you pretty much have ot think of air as a liquid, and how much ventilation would you need if you were trying to fill the area with water given enough time...it doesn't take much. and in most situations, anything is better than nothing. A small leak of air will fill into a CO2 rich environment so I would guess your 1 sq inch/1000 btu is pretty accurate.
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023311
01/03/18 08:37 PM
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Joined: Feb 2013
Posts: 4,694
krmitchell
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I don't know an exact figure but I keep at least 1-2 windows open in the blind anytime I'm using a heater. If I close the windows I just turn the heater off.
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023348
01/03/18 09:02 PM
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Joined: Sep 2004
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Buddy
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when I use mine at the cabin, I have a window cracked to allow fresh air. I know when the heater buddy runs out of fuel, the cabin cools off pretty good from that window being cracked. But after the incident from this weekend, I believe I will take a CO2 detector with me and place in the cabin for now on.
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023349
01/03/18 09:03 PM
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Joined: Sep 2007
Posts: 1,358
bronco71
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That sounds about right, my motor home has a built in furnace and the door has a window with a permanent opening across the top about 18"w x 1.5". I believe this opening is for venting.
Also many years ago I installed a wood stove in my mobile home and had to install a special vent kit to meet the code. It was about 3"x 6" and went from the firebox thru the floor and drew air from under the trailer so that the fire would not suck all the oxygen out of the living area.
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Re: How much ventilation is needed when using a propane heater?
[Re: Buddy]
#7023355
01/03/18 09:08 PM
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Joined: Feb 2013
Posts: 4,694
krmitchell
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when I use mine at the cabin, I have a window cracked to allow fresh air. I know when the heater buddy runs out of fuel, the cabin cools off pretty good from that window being cracked. But after the incident from this weekend, I believe I will take a CO2 detector with me and place in the cabin for now on. Yea I just bought a new detector for my trailer at the lease. $25 bucks on Amazon and will be here tomorrow for this weekend.
Last edited by rexmitchell; 01/03/18 09:21 PM.
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023360
01/03/18 09:11 PM
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Joined: Dec 2008
Posts: 22,630
Cast
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I have a large Dearborn heater in my cave. It’s a very tight insulated building with a garage door. I also have a CO detector in there. I’ve run several hundred pounds of propane through it over the years with no complaint from the CO detector. I figure the garage door leaks enough to ventilate the building.
Now, is it possible that my heater is just tuned correctly and does not emit CO? Doesn’t the absense of a yelllw flame mean it’s burning clean?
Cast I have a short attention spa
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023363
01/03/18 09:14 PM
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Joined: Aug 2016
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Dalroo
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I've been thinking about this as well. I run an 80,000 btu propane heater, but my shop has two ridge vents and 3 roll up doors that do not come anywhere close to sealing tight. No problems running the heater yet, thankfully, and if 1" per BTU is a good rule, with the gaps in my doors there is more than enough fresh air leaking in.
Regardless, even though I don't sleep in shop and most time would think I am aware enough to notice a change, I am going to go buy a CO (fixed) detector just because.
Last edited by Dalroo; 01/03/18 09:24 PM.
Dalroo Deep in the Heart of Texas How about that Brandon!
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023371
01/03/18 09:18 PM
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Joined: Dec 2008
Posts: 22,630
Cast
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Cast I have a short attention spa
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023377
01/03/18 09:23 PM
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Joined: Nov 2016
Posts: 641
Buck25-06
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I can not advise someone on something this potentially dangerous.You should get advice from a propane supply company.
I know allot about everything-Everything about nothing!!!!
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023514
01/03/18 10:43 PM
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Joined: Dec 2006
Posts: 2,057
ChrisB
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I ran a buddy heater in my old camper many times. I just cracked a window and opened a roof vent. I also installed a CO detector to be extra safe.
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023548
01/03/18 11:02 PM
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Joined: Nov 2005
Posts: 5,306
DLALLDER
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If you stay awake an excellent CO detector is you!!! The first sign of a head ache, turn the heat source off and open whatever will get fresh air in cold or not! Sleeping is a different story!!!!
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023640
01/04/18 12:05 AM
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Joined: Aug 2013
Posts: 2,072
cabosandinh
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I used to run a 20 lb propane with dual burner In an 8x20 cargo trailer
Heater is set by the door I cracked the door 1" With smoke alarm high on ceiling And CO alarm at cot height
Everything went fine
Until one day I decided to run propane lantern Inside with the heater going
Almost died and gone to heaven That night
CO alarm alerted me at 2 am
Where I was having shortness of breath
Thought I was having a heart attack
Then alarm goes off
Heater with cracked door is ok Never run lantern inside without the door half open
Carry on
Last edited by cabosandinh; 01/04/18 12:06 AM.
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023702
01/04/18 12:40 AM
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Joined: Nov 2004
Posts: 14,768
jeh7mmmag
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All good information. Anyone think of a wall mount heater or even floor heater that has external vent that could be used in blinds, trailer, cargo box. I know electric would be the best answer but.
�Everybody needs beauty as well as bread, places to play in and pray in, where nature may heal and give strength to body and soul.� ~ John Muir
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023879
01/04/18 03:09 AM
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Joined: Jul 2006
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dogcatcher
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They make propane heaters that are vented, if properly installed and maintained there would be no problem. Unfortunately there are some people think they are qualified to install and maintain them.
Combat Infantryman, the ultimate hunter where the prey shoots back. _____________"Illegitimus non carborundum est"_______________
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7023947
01/04/18 03:47 AM
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Joined: Dec 2016
Posts: 1,841
Adchunts
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I am beyond paranoid about combustible fuel heaters. Have had several acquaintances die as a result of faulty stoves and heaters over the years. Had several carbon monoxide detectors in my small camper, and made my contractor install one in every room in my new house. Cannot be too careful.
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7024399
01/04/18 03:20 PM
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Joined: Aug 2014
Posts: 482
Hunter Daddy
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I was always told that you should crack open at least 2 windows in your deer blind if using a propane heater. As far as a cabin, deer camp or whatever, you should always have a carbon monoxide detector inside THAT WORKS! And keep a window or two opened slightly. Never should your sleeping quarters be "air tight." I was also told that the carbon monoxide detector is best kept about 2 feet above the floor. Also....don't forget your smoke detectors.
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7027344
01/06/18 07:30 PM
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Joined: Jul 2009
Posts: 41
tmkbdd
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Vertical opening. One-inch free area for each 4,000 Btu/hr. input of gas burning appliances in the room.
Horizontal duct opening. One-inch free area for each 2,000 Btu/hr. input of gas burning appliances in the room.
TK
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7027821
01/07/18 03:59 AM
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Joined: Sep 2010
Posts: 1,223
jnd59
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I thought CO was lighter than air. That would mean the detector should be near the ceiling.
No matter how high a duck flies a hammer still breaks a window.
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7027881
01/07/18 05:06 AM
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Joined: Jun 2015
Posts: 18,706
Roll-Tide
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1 inch crack to get steady air plus a co detector close by.
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Re: How much ventilation is needed when using a propane heater?
[Re: Cast]
#7028689
01/07/18 11:26 PM
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Joined: Sep 2007
Posts: 4,294
oldoak2000
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I have a large Dearborn heater in my cave. It’s a very tight insulated building with a garage door. I also have a CO detector in there. I’ve run several hundred pounds of propane through it over the years with no complaint from the CO detector. I figure the garage door leaks enough to ventilate the building.
Now, is it possible that my heater is just tuned correctly and does not emit CO? Doesn’t the absense of a yelllw flame mean it’s burning clean? How old is that CO detector? Also- Is is one of the ones (millions) that have been recalled (defective-don’t register CO)??
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7029137
01/08/18 06:10 AM
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Joined: Sep 2016
Posts: 391
Pintail711
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I would not use a propane heater inside period. Why chance it when you can buy a wood burning stove. Others lives may be worth it but my sure as hell isnt.
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Re: How much ventilation is needed when using a propane heater?
[Re: Pintail711]
#7029163
01/08/18 11:38 AM
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Joined: Aug 2012
Posts: 15,566
TexFlip
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I would not use a propane heater inside period. Why chance it when you can buy a wood burning stove. Others lives may be worth it but my sure as hell isnt. Wood burning stoves also produce CO.
Just to make sure that it is done thoroughly, I go both ways.
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Re: How much ventilation is needed when using a propane heater?
[Re: jnd59]
#7029311
01/08/18 02:01 PM
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Joined: Jul 2008
Posts: 22,257
Texas Dan
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I thought CO was lighter than air. That would mean the detector should be near the ceiling. The CO and gas detector the manufacturer placed in my trailer is just a foot off the floor. A separate smoke detector was placed on the ceiling.
Last edited by Texas Dan; 01/08/18 02:01 PM.
"Some people will never like you because your spirit irritates their demons."
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Re: How much ventilation is needed when using a propane heater?
[Re: Texas Dan]
#7029511
01/08/18 04:04 PM
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Joined: Jan 2009
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Sidebuster
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Be safe, use oil heaters.
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