Barometric Damper

[huffdawg]

Anybody using one of these?

http://www.globalindustrial.ca/p/hv...mpaignId=T9A&gclid=CPT8geGihrwCFU9afgod5A4A9g

Huff

 

[STIHLY DAN]

That is not a baro damper. That is a damper meant to close of a flue on a fossil fuel unit when its not firing. Keep the heat from going up the chimney.

 

[huffdawg]

Ya I realized that after I posted ,I tried to edit the title with no luck. Keeping the heat from going up the chimney after boiler burns out is what I want to use it for..

 

[dogwood]

Huffdawg, could you or anyone think of a way one of these devices could be utilized with a standard gas or propane fired dhw tank? I've always been bothered by the water heater's open flue siphoning our homes heated air to the outdoors. I can't figure how you'd provide a signal from a standard dhw heater to the damper to open or close. Interesting device. Thanks for providing a link to it.

Mile

 

[Coal Reaper]

They have them for gas and oil, multiple sizes. I will be putting one in when i have some extra funds to throw at it.

 

[huffdawg]

Huffdawg, could you or anyone think of a way one of these devices could be utilized with a standard gas or propane fired dhw tank? I've always been bothered by the water heater's open flue siphoning our homes heated air to the outdoors. I can't figure how you'd provide a signal from a standard dhw heater to the damper to open or close. Interesting device. Thanks for providing a link to it.

Mile

• Operates with all 24 VAC, 60hz intermittent ignition and standing pilot ignition systems. Looks like it would work if you could find one that is the same flue size that your DHW tank has.
• http://www.globalindustrial.com/site/images/universal/FieldControlsPdf/GVD4-12-INSTALL.pdf
• One of the heating experts on here would most likely give you a more definite answer.

 

[STIHLY DAN]

The flue of your h2o heater should be an open 1, so no need.

 

[BoilerMan]

I think you could certainly use one on any oil-fired how water heater such as a Bock. When there is a call for the burner to fire the damper breaks the call, so it can open, when the end switch in the damper has proven it's open, then it lets the burner fire as normal.

They are not air-tight so any gasser which is not natural draft would likely leak smoke/flyash to the boiler room. That said, if you are thinking of using one of these on a wood boiler, the flue temps may be too high, only for fossil fuelled units. Would stop a lot of standby losses up the flue from a hot oil/gas boiler which are significant.

Motorized dampers are standard equipment on atmospheric gas equipment in order to pass minimum energy efficiency standards.

Hope that makes sense.

TS

 

[Hansson]

I have one Motorized damper on the air intake to the boiler room.
When the boiler starts the damper open.And close when the fire is out.

 

[jebatty]

I thought about a motorized damper, but when my boiler is "off," there is very little air drawn through the boiler to the flue, so little that in a power failure the fire rapidily dies down. Like Hansson, I too have an air intake control: a linear actuator on a sliding window in my shop that opens the window 6" when the boiler is on and shuts the window when the boiler is off.