Barometric Damper Adjustment Error

Post by **coaledsweat** » Sat. Dec. 15, 2007 9:01 am

gaw wrote:I don't have an EFM, but that should not make a difference. My damper hangs open about a third of the way almost constantly at this time of year. When the stoker runs it will do a little flutter when the blower first starts, as if you were to bump it closed with the flick of a finger, but it quickly returns to its partially open position. At times it may move back and forth but never fast, its just a smooth motion. The only time it shuts quickly is when I open the ash door or open the fire door because this breaks the draft. I am using a Fields RC.

That is how it should work, when the fan starts, the firebox will go to positive pressure initially and then return to a negative draft as the chimney catches up to the increased air flow.

e.alleg · Post by **e.alleg** » Sun. Dec. 16, 2007 12:47 am

spc wrote:Ebay has 7" RC for $16.30 shipped. Item number: 110205174033

If there is a way to install this in my 8" pipe I'll buy it.

Post by **coaledsweat** » Sun. Dec. 16, 2007 8:46 am

http://www.fieldcontrols.com/draftcontrol.php

gaw · Post by **gaw** » Sun. Dec. 16, 2007 8:52 am

e.alleg wrote:
spc wrote:Ebay has 7" RC for $16.30 shipped. Item number: 110205174033
If there is a way to install this in my 8" pipe I'll buy it.

Not sure about the 7 but the 8 and 9 inch can be put on 1 inch larger and smaller pipe. All the dampers I bought came with a T mounting piece. In other words you attatch it on a strait piece of pipe, it is a make your own T and is easily put on the larger and smaller pipe sizes. The only problem is if you have a good draft you may not be able to maintain the draft setting you want with a smaller damper than the diameter of your stack pipe.

e.alleg · Post by **e.alleg** » Sun. Dec. 16, 2007 8:58 pm

I bought it, for $15 it's worth a try and the manual says it can fit 6,7,8" pipes. The 8" ones are $85 at the hardware store

e.alleg · Post by **e.alleg** » Fri. Dec. 21, 2007 1:23 am

I installed the field controls RC damper tonight and sealed off the old one, the new damper works great. It adjusts the draft accurately and smoothly, no more scratching my head.