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Mark Henley
Mark Henley, Journeyman Technician
Category: HVAC
Satisfied Customers: 3217
Experience:  UA Journeyman Pipefitter , HVAC, Refrigeration, DDC controls. 26 years.Commercial & residential
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My fireplace suddenly stopped drawing smoke up the chimmey

Customer Question

My fireplace suddenly stopped drawing smoke up the chimmey the last time I tried to build a fire. It has been working fine for weeks, the flu is open and there does not appear to be any obtruction. What would cause this problem?
Submitted: 6 years ago.
Category: HVAC
Expert:  Jim Hamilton replied 6 years ago.

Check your rain cap. Many times these clog or ice over .

 

Good luck, let me know how you make out.

Customer: replied 6 years ago.
I live in Florida and although we have had some abnormally cold temps lately it is not cold enough to ice over. When I look up the chimmney I can see the sky so there does not appear to be any obstruction.
Customer: replied 6 years ago.
Did you receive my response to your answer?
Expert:  Jim Hamilton replied 6 years ago.

I will opt out and allow another expert to help you. I've not dealt with drafting in your climate.

 

Good Luck.

Expert:  Mark Henley replied 6 years ago.

Hi,

 

One of two things or a combination of both,

 

The chimney is being flooded with too much combustion products ( oversize fire ) or there is an exhaust in the home somewhere that is sucking too much air out. let me know if that helps,

 

Also of the flue is cold it may reverse draft until it heats up,

 

Thanks

 

Mark



Edited by Mark Henley on 1/8/2010 at 5:08 AM EST
Mark Henley, Journeyman Technician
Category: HVAC
Satisfied Customers: 3217
Experience: UA Journeyman Pipefitter , HVAC, Refrigeration, DDC controls. 26 years.Commercial & residential
Mark Henley and 2 other HVAC Specialists are ready to help you