Originally Posted By: jsavino
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David,
You had question back in Feb. about draft regulators. I installed oil fired boilers and furnaces for 30 years. They are required. I installed them right out the chimney, with a smoke tee not at the boiler breeching.
They are made to equalize the pressure in the heating equipment. They should open when the burner comes on and close when off. They should be balanced by using a draft gauge and with the use of weights. They may open and close with the wind blowing across the top of the chimney. You will notice this on a windy day, if its set up properly.
Hope that helps you,
John