Understanding PPM

Renfro

Well-Known Member
My house was built in 2007. After talking to my father, he said that the entire house is relatively sealed up to protect against the frigid winter air. I opened a window. Opened it only 7 inches but it's a 5ft tall window
A home built on 2007 should have a fresh air intake built into the HVAC system. If this is blocked or the blower for it is dead then thats a major issue.
 

MR.NICE.GUY.1990

Well-Known Member
Furnace is broken, smh. We utilized 2 propane heaters in two sections of the house to heat it. It's a huge house. The basement is pretty much sealed off. Is the broken furnace the cause of the problem? Roughly 65°f on average here. Thanks for all the help btw guys.
 

HydroRed

Well-Known Member
If you have a high efficiency furnace, there will be a PVC pipe outside where the exhaust blows out from. If that is blocked or if your exhaust blower isnt working sufficiently then your Co2 & Co numbers will be up there like they currently are.
 

HydroRed

Well-Known Member
Furnace is broken, smh. We utilized 2 propane heaters in two sections of the house to heat it. It's a huge house. The basement is pretty much sealed off. Is the broken furnace the cause of the problem? Roughly 65°f on average here. Thanks for all the help btw guys.
Well, theres your problem is that you are using fossil fuels to heat your home and its likely not getting the proper exchange it should be getting like if you were running a furnace.
 

Bernie420

Well-Known Member
I thought that a ppm of 380 was normal, maybe the meter isn't that accurate but you are still in the danger zone there maverick.



What level of co2 is dangerous?
CO2
350-1,000ppm Concentrations typical of occupied indoor spaces with good air exchange
1,000-2,000ppm Complaints of drowsiness and poor air.
2,000-5,000 ppm Headaches, sleepiness and stagnant, stale, stuffy air. Poor concentration, loss of attention, increased heart rate and slight nausea may also be present.
 

Renfro

Well-Known Member
I thought that a ppm of 380 was normal, maybe the meter isn't that accurate but you are still in the danger zone there maverick.



What level of co2 is dangerous?
CO2
350-1,000ppm Concentrations typical of occupied indoor spaces with good air exchange
1,000-2,000ppm Complaints of drowsiness and poor air.
2,000-5,000 ppm Headaches, sleepiness and stagnant, stale, stuffy air. Poor concentration, loss of attention, increased heart rate and slight nausea may also be present.
380 to 400 is normal for outdoors away from a city. In a city you may have outdoor levels at 600 to 800 IME. Indoors all bets are off as fresh air intake volume is often inadequate, especially in older homes or homes that are very well insulated and lacking proper exchange air in the HVAC or HVAC isn't operating.
 

ttystikk

Well-Known Member
380 to 400 is normal for outdoors away from a city. In a city you may have outdoor levels at 600 to 800 IME. Indoors all bets are off as fresh air intake volume is often inadequate, especially in older homes or homes that are very well insulated and lacking proper exchange air in the HVAC or HVAC isn't operating.
The global CO² level is now 412ppm, as measured at the CO² observatory at Mouna Loa in Hawaii.

I find that extremely disturbing.
 

MR.NICE.GUY.1990

Well-Known Member
I've increased my fan speed and moved my intake fan near the open window. I've got it down to 2450 ppm in my tent. My temp is 68° f which is a little on the cold side. I'm thinking about insulating the window, and pulling fresh air through the window. Probably have to get a little heater
 

ttystikk

Well-Known Member
I've increased my fan speed and moved my intake fan near the open window. I've got it down to 2450 ppm in my tent. My temp is 68° f which is a little on the cold side. I'm thinking about insulating the window, and pulling fresh air through the window. Probably have to get a little heater
Part of the problem is the propane itself, which produces twice as much CO² per BTU of heat as natural gas does. That's why propane is the preferred fuel for CO² burners.

An option worth looking into is to crack a window in the lowest room in the house, place the propane bother in there and then draw air from the top level of the house. Doing this slowly will reduce the CO² level in the house and provide essential fresh air for the burner (essential for compete combustion, as incomplete combustion is how you get carbon monoxide).
 
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MR.NICE.GUY.1990

Well-Known Member
The two propane burners are wall mounted, built in setups, one being an actual fireplace like setup in the living room. Our basement is the lowest room, but theres no window to crack, just a large door, and we have a blanket over both entrances to the basement to keep heat upstairs. It's what we do when it starts getting shitty out like it has been. I have digressed, I cracked a window nearest the two propane burners, in an attempt to mimic the above plan.
 
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