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I have black soot coming out of my gas wall heater and the vent on the roof is all black too. Not sure the age of it, could be up to 50 years.

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You need to have a service company come in and service your heater. #1 it needs to be cleand. #2 They need to do a thorough check out of your heating system. I can not stress this enough; your flue and heat exchanger are blocking up and you are at risk for carbon monoxide poisining.

Posted on Oct 10, 2010

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Posted on Jan 02, 2017

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Flame burning too orange


You must get more air to water heater, and check venting .... immediate CO poison danger.
Call qualified plumber immediately.... because deadly carbon monoxide is not being vented properly.
http://waterheatertimer.org/Water-heater-safety-precautions.html#soot

Gene h

Mar 27, 2014 | Water Heaters

1 Answer

Our Rinnai gasheater is in 'n working condition but since we used it the white walls and ceilings are covered with black marks - I am worried that it could be dangerous - any advice?


Unfortunately, you failed to mention the Model Number and whether its a flue-less or Vented unit. In either case, the black streaks you see on the walls and ceilings is soot. If it's a flue-less unit, this is an indication that the unit has not received routine maintenance on a regular basis. The sooting is caused by a dirty or clogged burner or low gas pressure.

Also, burning scented candles and operating the heater at the same time, will cause soot. Not from the heater, but from the candles. All candles soot, but scented candles soot more than others. Combine them with the warm moist heat and they will soot 50 times worse. If this is the case, it's the candles sooting, not the heater. Stop burning the candles while the heater is in operation.

Is the soot dangerous? Yes, to the point that you are breathing it in, when it;s floating in the air. The sooting didn't occur over night, it has been doing it for sometime. You finally realized it, when you saw the black streaks. Stop using the heater until it is professionally serviced by and authorized Rinnai Service Technician and the walls and ceiling are cleaned.

You can either remove the soot yourself or have it professionally done. Then, you should prime paint the walls and ceiling with a sealer like Kilz, before repainting. All curtains or draperies should be washed or dry cleaned. All furniture and carpeting should be vacuumed thoroughly.

I hope this helped you and thanks for choosing FixYa.

Aug 10, 2011 | Heating & Cooling

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Our Rheem gas water heater was acting finicky a few months ago so we called the manufacturer and they sent us a new/replacement kit for the Invensys WIPER Electronic Control & FV Sensor. We replaced...


You're probably in for a service call and/or possibly water heater replacement if unit is more that 5-6 years old.
Your water heater plugs into outlet. Check outlet with cheap circuit analyzer to make sure the unit is receiving correct polarity without line interference.
If unit is in the attic, then add more venting to soffit and roof so pilot is not being snuffed out by hot air. If unit is in basement, then open some doors and a window and see if unit needs more air.
Most gas water heaters require yearly cleaning and service.
Clean the combustion parts and tubes.
Clean the air intake.
Have gas company check gas pressure.
Open following link for possible illustrations:
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot

The problem can be bad gas control valve, air in gas line, low gas pressure, gas shut off handle not fully parallel with gas line, dirty combustion parts, lack of combustion air, improper venting. Or combination of all things. It's an electronic gizmo, anything can be bad or shorted, and repair may not last long.

Without a trained service technician to ohm-test the parts using correct service manual, then we are guessing at the cause.

Power vent water heater implies that you have side wall venting which must be replaced with another side-wall vented unit -or- it implies rapid reheating of water.

If water heater is more than 6 years old, you might be money ahead by installing a new one from local box store. Avoid the power vent and electronics. Local box store will have passive roof-venting type water heater BUT box store does not sell side-wall power vent. If your power vent goes up through the roof, then box-store variety gas water heater will work. Total cost $350 do-it-yourself for 40 gallon gas.
Or get 40 gallon 240Volt electric for $220 and connect to circuit breaker box. Requires no venting, and is easy to repair for years to come.
Or small 120Volt electric that plugs into outlet to tide you over until gas repairs can be made.
Look for scratch-n-dent models and always offer 10% off.
http://waterheatertimer.org/How-to-install-gas-water-heater.html
Shower uses 5-9 gallons hot water.

Aug 01, 2011 | Rheem Water Heaters

1 Answer

Black soot every were how do i clean it and what with


Well, Boat Bob, you can clean the soot off by using a Shop Vac with a brush attachment on the hose. That will take off the biggest portion of it. Then you can clean the remainder of the outside with a damp cloth, but be sure to dry the cabinet afterward. Remove the screws the are holding the face of the of the cabinet on and proceed to clean all of the interior of the heater cabinet fire, with the Shop Vac , being sure to vacuum the burner(s) thoroughly, as well as the pilot assembly and all the mechanical 's. What soot isn't removed with shop vac, should be removed with a DRY cloth. Then use a can of compressed air with a straw nozzle (like you clean your computer with) to blow out the pilot and all around the pilot assembly.

For the remaining soot on walls, ceilings, furniture, etc. Gently vacuuming is the best way to remove the lion' share of the soot. Then, if necessary, the walls and ceiling can be washed with a diluted solution of Simple Green and water. Clean small areas at a time.

After that, you need to turn your attention, as to why the heater sooted? Several things come to mind ... No annual professional cleaning and service; Incomplete combustion; Vent pipe partially obstructed; Low gas pressure; Clogged burner(s), Obstructed air intake.

If you'd like further information, here is a link to your Owners Manual, which will help you to Troubleshoot the heater. http://www.empirecomfort.com/EMPIRECOMFORT/pdf2009/manuals/12433-10-0109DV.pdf

Hope this helped you to answer your questions.

Mar 24, 2011 | Empire DV-215 Direct Vent Natural Gas...

1 Answer

I have a black soot on all my walls through the whole house especially the exterior walls. I believe it is caused by my propane fireplace. Im not sure if it is not ventilating properly or what the problem...


Is a Vented or Vent-free gas fireplace? I really suspect it's Vent-free (ventless) as a vented unit, unless the direct vent is clogged exhaust everything, including 85% of the heat out side.

Here are the things that will cause a Vent-free Gas Fireplace to soot.

  • Not having the fireplace cleaned and serviced, at least annually by a qualified technician.
  • Misplaced logs that impinge the main burner flames.
  • Running a ceiling fan at the wrong speed and in the wrong direction while fireplace is burning.
  • Burning scented candles while burning the fireplace.
  • Low Gas Pressure to the burner.
Here are the solutions to the above listed causes:

  • Have the fireplace cleaned and serviced.
  • Check your Owners Manual concerning the proper placement of each log,
  • Run the ceiling fan Counter Clockwise and at the slowest speed. The fan on the side of the switch should be in the UP position for Winter and Down for Summer.
  • Scented candles soot any way. Add the warm moist heat of the Gas Fireplace and they'll soot 50 times worse. The scent is not natural, it has an alcohol base like after shave & cologne. Stop burning scented candles. It has been proven that they greatly contribute to indoor air pollution.
  • Low gas pressure causes incomplete combustion, which causes the burner to soot. Have it checked by your propane provider.
Based on my 15 years in the hearth and home business and having sold and installed hundreds of these appliances, I am will to bet, it's a cleaning and servicing issue or misplaced logs.

Hope this helps you solve your sooting problem. I woud really like to know how it works out for you.
Please let me know at americanhearthandhome1@yahoo.com

Thanks ... Rich

Feb 16, 2011 | Heating & Cooling

1 Answer

We have an indoor pool. We had to change 2 heaters in 5 years because of soot and rusting. Our 3rd heater just died with the same problem. What should we do?


This is usually a venting problem, not just a roof vent for the heater but be sure you have the correct size. I believe yours is a nine inch vent. Be sure the vent is two feet above the roof ten feet from the stack. Usually in a situation like this the room is under vented. For a heater this size you need a lot of air to run it. So you will need a low and high vent in the room. These need to be 400 square inches each to keep air fresh and moving in the room. And lastly be sure you keep your chemicals in a different spot, they are corrosive.
I hope this helps good luck.

Nov 16, 2010 | Hayward H-series Electronic Gas Pool...

2 Answers

What causes black soot to smoke up our complete house with ventless logs


Hi,
Take the pilot and burnner assembly all apart and blow it out with compressed air then reassemble and make sure that the air shutter is totally open. The soot is cause by a bad air/fuel misture that is too rich and cause carbon to form from incomplete combustion. If the burner continues to make soot then reduce the gas pressure to the gas log at the pressure regulator.

Propane, LP, or Natural Gas Regulator Problems


heatman101

Sep 24, 2010 | Empire DV-215 Direct Vent Natural Gas...

2 Answers

Night store heaters creating soot.


Hi soot is incomplete combustion , so there could be something on the elements causing this to burn off soot google the heater there are some things on the web about this , hope this helps

Feb 11, 2010 | Cozy (W352E) Heater

1 Answer

Gas dryer leaves black grease spots on clothes


the soot is coming from the flame at the gas heater box the drier needs to be converted to propane the flame is too large without the conversion kit installed and thus creates soot at the vent. contact a local repair place for this one it can be tricky.

Sep 12, 2009 | Whirlpool LGR5636L Gas Dryer

3 Answers

Natural gas heater


The burners are shot. The heavy metal tubes with the holes that the burner flame comes out of, has burnt through. Instead of little rows of holes, there is at least one large hole in it. Unless someone has changed the gas>air mixture, you need new burners.

Mar 13, 2008 | Empire DV-215 Direct Vent Natural Gas...

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