I need help people. it appears the was "something" in my heater flue the other day and it has not been able to get out. There is now a definate smell wafting in the general area. I was blaming Ebert and Jaws until I realized they were spotless and it's all around the combustion heater. Anyone know of a chimney sweep or is there something I can do?? it's in my lounge and it's rotten!!!