[quote="franco b"]My advice would be to have someone knowledgeable test the smoke and CO2 in the old burner to see if new would be better. Your oil supplier should have service personnel able to do that. Why diesel and not no. 2 oil which has no road tax?
My brother in law has a large farming operation and I buy my fuel from him so no road tax. I guess I have never priced #2 so not sure if there is much of a cost difference. My B-I-L gets a very discounted price due to volume. About the fire brick, inside the burner you can see there have been a lot that have fallen....never fixed because I thought that would just be more surface area of heat? Educate me on the fire brick???? Not being a smart azz, I am confused? Sounds like I could benefit from a new burner unit. I will try and get some pics of the burner and the inside so you can see the firebrick.