Do I need new combustion analysis after Adding Beckett Sound Cover

Don_175

We have a Beckett AFG oil burner. I’d like to make it quieter. It is below our family room. The exhaust noise isn’t bad, but would like to decrease the mechanical sounds (whirring etc). If I add the sound cover, does the burner need to be tuned up again/adjusted because air flow might be different? Burner is running well presently. Thanks. 

Steamhead

Yes. Any time you change something on a burner you MUST re-test it. You never know what adding the cover will do.

EdTheHeaterMan

There may be a slight combustion air restriction. You will want to know if there is an increase in the Smoke Spot # of the flue gas.

SuperTech

You definitely want to have it re-tuned with a combustion analyzer.  I know from experience that those burner covers definitely make a difference to how much air the goes to the burner.  I would consider adding an Air Boot to the cover as well,  then the burner will draw combustion supply air from the outdoors. This will help increase system efficiency and reduce drafts inside the home.

Greening

We have a cover on our new Riello. It has a thin layer of insulation covering some of the inside. Can't believe how much it reduces noise but it works well.

We just added a outside fresh air intake; that dropped noise a lot too. Highly recommended. There will be local codes around how that is installed.

Don_175

One other question….when going to install the plastic cover, I can put the thermostat wire in the J channel on the metal plate of the sound guard. However, the armored cable for power to the oil burner comes in on the left from above. Can I just make a small hole in the back edge of the top of the plastic cover and slide in the BX cable?

EdTheHeaterMan

They sell longer wires at the supply house.

Or just drill the hole.

This is not Rocket Surgery.