Ask Experts Questions for FREE Help !
    zombieman's Avatar
    zombieman Posts: 2, Reputation: 1
    New Member

    Feb 23, 2005, 05:56 PM
    Sut buildup?
    I've had the same problem off and on for 2 winters now. I don't really know anything about central heat units. My problem is that black sut is building up in the burning chamber. The flames are kind of tall I guess, and the tips of the flames are actually red. The pilot light continually goes out and relights within a few seconds. It does this 10 times on occasions within a couple of minutes. When I take the panal of the side of the unit there is all kinds of sut inside there. It will actually go through spurts where after I clean the unit by smacking the rails with a socket wrench (causing sut to fall out) it might actually run for a month without any problems. What could the problem be? The heater runs of LP gas.
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
    Uber Member

    Feb 23, 2005, 06:21 PM
    If you are getting soot, your have too much fuel for the air. Older units had sort of an hour glass cut out with a damper you could adjust. If you see anything like that, try opening up the damper until you get a nice blue flame.

    Does the furnace have a good source of combustion air? My 85,000 BTU gas furnace specifies 42 square inches free area to outside air, or 100 from a large house. In a tight house, kitchen and bath exhaust fans may rob the furnace of the air it needs.

    Does it have forced draft, and is so, it is set up and working right?

    Are you sure it has the right jets for LP gas? Many furnaces can run either natural gas or LP, but must have the right jets. Perhaps your LP supplier could help with that.

    A lack of air creates more carbon monoxide and uses more fuel. You want to fix this problem. Call in a good furnace man if you can't find the problem yourself. You may want to contact the manufacturer for an installation and start up guide.

Not your question? Ask your question View similar questions


Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.

Check out some similar questions!

Electrical energy buildup [ 5 Answers ]

I have a lot of electrical pollution and I'm searching for ways to release the buildup within by body. Any suggestions?

View more questions Search