It’s not normal, or healthy, for a furnace filter to turn completely black. So, this is coming – you say, it’s – is it coming out of the vent for the – through the wall heater? Once the furnace finally ignites, this combination of oil and gas vapors explodes, causing the dangerous phenomenon known as a furnace puffback. Solution to propane furnace discharging soot throughout the home? I have a Payne PG9YAB060100 (model no), 4909A57968 (serial no) propane furnace. I just went to fire up the furnace...it's getting chilly outside and in. Menu. WOMBAT, Manliness Expert. It’s a wall mount heater. I noticed soot just above the Control Access Panel. Three Most Common Causes of Fire Glass Turning Black 1) Missing Air-Mixer (Propane Only) Unlike natural gas that is clean and light, LP gas is a denser, heavier fuel that requires the addition of air to the gas. It took 30 … My oil company has told me it's from a cracked heat exchanger and that I need a new furnace. Soot stains on walls are unsightly and difficult to deal with, but it is possible to remove soot from walls, and all you need is some basic cleaning tools and a special kind of sponge. Propane furnace black soot. Verified. It should burn clean. TOM: Mm-hmm. What causes black soot buildup on my gas fireplace logs? 1 decade ago . I kept smelling gas so i called the gas provider out they came and did leak test and found that it was all good , but they found that the smell was coming from the exhaust vent and there was black stuff in pipe . Excessive sooting can be the result, or combination of, any of three different problems: The ratio of gas and oxygen may need to be adjusted. Answer Save. 2) Soot can be deposited on the heat exchanger, acting as an insulating barrier. Puppy Zwolle. This insulation barrier lowers your furnace’s efficiency, increasing your energy bills as a result. Anyway, I always check things out, like filters etc before cranking things on. DSC_0674.JPG DSC_0674.JPG. 1627 SE 1st St Lawton, OK 73501 (580) 357-1787 . Large amounts of soot can be caused by a dirty, clogged or malfunctioning burner, inadequate draft or a low air-to-fuel ratio. You may examine your furnace filter and see that it has turned completely black. I have noticed that my heat from vents doesnt feel very war and the furnace seems to run a lot . As the soot layer gets thicker less heat is transferred and more of the heat simply continues to go up the chimney instead of into the building. Relevance. Sources of soot include candles, fires, matches, and other burning materials. He did not look inside furnace. It is putting out black mist at the exhaust vent is not heating properly. Carbon monoxide can also be released in this fashion, which is highly toxic. 1 … However, excessive soot buildup can indicate that your furnace is not running at peak efficiency. If you do not live near enough to a natural gas center but want a gas oven, LP is your only choice. Their salesman came out and is working up quotes. Experience: Operating Engineer at NRG Energy. 7 Answers. HVAC Technician: Michael Ferryman, replied 3 days ago. My gas logs after burning for more than 20 or minutes in the FP, leave some black soot on the tile below the mantle and the white board above it running horizontal. Thus the transfer of heat into the building is reduced by soot in the heating equipment. They spread smoke and soot into the air, which can settle on the filter. There is black soot around furnace. Soot inside the furnace or boiler reduces the transfer of heat into the heating system's water (or air if it's a furnace). Black soot can build up inside the combustion chamber of a furnace due to a lack of routine maintenance, but this soot shouldn’t end up in the ducts or coming out of your vents unless there’s a serious problem like a puff back. When changing the furnace filter in your Oklahoma home, you should look carefully for soot and a thick black powder that forms when the gas or oil that fuels your furnace is not being burned properly. I'm homeowner with 22 year old Heil oil burning hot air furnace. Answered in 4 hours by: 11/10/2020. Category: HVAC. That’s not good. Submitted: 3 days ago. Can black soot on air filter, in furnace & returns in house be caused by a fixable leak? Why would I have a black soot over walls and ceilings from a propane gas fireplace? In this episode of How To, by Sobroke Media, Dan Bethel shows how to properly clean and maintain your propane furnace. Gas fireplaces and gas fireplace inserts let you enjoy the look and feel of a wood-burning fireplace without the work and mess. Answer Save. If you have extensive soot marks on your carpet, hire a professional to clean the carpet, as soot is one of the hardest stains to remove if it has already sunk deep into your carpet fibers. If you notice soot buildup on the fireplace glass, check the position of the ceramic logs. crack I have opened in the firebox damper. fred9 Member Posts: 29. moved in to a house and had a look at the furnace. How to Stop Soot in a Gas Fireplace. June 2015 in Oil Heating. New Colman furance and new instant hot water heater, also converted propane cloths dryer and cooking range to electric. If you have soot you should check if the ventilation is blocked somehow. These ovens work similarly to a natural gas system and can have similar problems, including soot issues. 1 decade ago. Natural gas fireplaces are connected to the house's gas lines and generally receives "fresh" gas. If black soot is found near where the furnace connects to the ducts, the heat exchanger may be leaking. If you see soot in this area of your house, turn the heat off and call a professional right away. Favorite Answer. Home; Products. Relevance. 335 S HWY 81 Duncan, OK 73533 (580) 252-1787. the flame gets blown out and we have to shut it down and let it stop running before turning it back on. I suspect that the furnace filters have never been changed, or it's been a long time, and that may be the culprit. Friday, August 10, 2018. TOM: Huh. Under normal conditions, your filter should last at least a month and gradually become clogged with grey-colored dust and debris. Unburned oils and gases build up inside the furnace combustion chamber as a result of a furnace failing to ignite correctly. 0 0. audioworm31. DAN: It’s coming out of the vent. Vented gas fireplace logs will usually have a bit of soot on them because it is a factor of the combustion process, but it is not be the norm for a non-vented fireplace. I assume you have a propane furnace and oven. Ask Your Own HVAC Question. Category: HVAC. 7 Answers. We have taken the entire unit apart, vacuumed out all the soot, blown out all the water lines, and within 6 weeks it stops working properly again. If you have a black air filter, first look for black soot and mold. It appears as a fluffy, highly pigmented, black powder. This can cause combustion byproducts like soot to mix with the air in the house. Black Soot from Furnace. ! Lv 7. i noticed that the condensate water was black and upon pulling the drain tube for the venter motor and secondary heat exchanger have found black particle ( soot) i took a combustion reading at the vent outlet and it was reading 142 ppm co. after contacting the … It will only run for about 1/2 hour before it begins to sputter again. Favorite Answer. With gas however it will be very hard to produce the amount of soot that would even make your snot turn black. call for black soot in house every were puff back .appaired to be soot through out the house .just started after 10 years of living in house . Carbon black can be found in black printing inks, paper, plastics, and surface coatings. Did not see any rust or cracks in the heat exchanger and the CO detector shows no CO inside. I checked the combustion air intake and it is clear. Share this conversation. And it’s all over the outside of my building. Black soot will be high if gas furnace has not been converted to propane, most or all furnaces are equipped to operate with natural gas. Black soot would typically be incorrect air/propane ratio. Satisfied Customers: 601. However, with natural gas as the fuel, you don't have to worry about old fuel or butane. Soot is a carbon residue in the form of a black powder that’s created when organic matter doesn’t burn completely. One of the biggest problems with oil furnaces is sooting up. Your furnace can create black or brown soot that can get your carpet or floor dirty. its a 2006 goodman gmvc950704cxab with a propane conversion kit. What is that means? I have a Quatro true blue 90 furnace that is approx 10 years old. When I tap on the ductwork above, some more falls out. DAN: I have black soot coming out of my heater through the vent, through the wall. If you have neither, try abstaining from candles, and increasing the amount of times you dust. I noticed the other day that the furnace in my fifth wheel was throwing some soot. It begins to sputter and pop. . 4 reasons a soot smell is bad news: 1) Soot is the result of incomplete combustion, meaning that your furnace isn’t burning the gas properly or efficiently. I went ahead and turned it on and watched it for a while and little bits of firey red soot was falling....not a lot but still some. Reasons Your Furnace Filter Is Black. Could be caused by incorrect air flow, wrong size burner office (unlikely since it worked for years), or low or high gas pressure at the burner. If there is poor combustion of the propane and/or natural gas then you can have a sooty black residue. Some soot is only natural, but if soot is causing visible stains, it could indicate several problems. That is done with the adjustable sleeve on the mixture tube that the propane is going through before it is mixed with the air that allows it to burn. LP stands for liquid (or liquefied) propane, a common fuel for gas ovens that are not connected to natural gas lines. Using low-grade fuel oil boilers also produces more soot than high-quality fuel. When a furnace misfires, it releases a puff of black, grimy soot or blackened smoke. Michael Ferryman. If it looks as black as soot, and you really like your scented candles and lounging by the fire, it may be black because of soot. Lv 7. They do not produce soot when operating correctly. Do not do this at home. The only time they would cause soot is if the propane is burning without the require air mixture. Otherwise, it won’t burn cleanly and will produce a black soot. Because of its close physical and chemical similarity to soot, carbon black is thought to be carcinogenic and can possibly pose a risk to your health if inhaled. I pulled the cover off where the burner is. Soot buildup in fireplaces that use natural gas for fuel is also largely due to an improper air/fuel ratio. The conversion kit consist of a small spring and orfices that are installed at burners to regulate gas flow. Search terms Search form submit button. In order for a gas furnace to properly work without creating soot, a conversion kit to propane has to be bought seperatly and installed. If perchance the gas pressure is way off from the regulator at the tank, or other causes, a new furnace may also soot up. But it is because I am too cheap to let the emergency heat that I use it for to go up the flue any wider than the .50 in. Hi My name … , but if soot is only natural, but if soot propane furnace black soot causing visible stains, could! 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