Exhaust blower questions

[hyfire]

Smoke smell from exh blower area, is this possible?

 

[hyfire]

I could see may a NEG pressure in the center front of the fan blade, but on the back maybe not? Need some experts to chime in...

 

[hyfire]

Looking closer at this design its positive pressure at the shaft, so some leakage is going to happen.

 

[midfielder]

Seems like it should draw around the shaft. But, it's push from there out, so pipe joints have to be tight. Most are like that. I removed my blower (for noise reasons) from the stove and put a custom unit on the top of my stack. Draw's all the way back to the OAK input now.

 

[hyfire]

Well I was looking at it and the heat exchanger air box is divided the input side and the output side, the shaft is exiting on the postive pressure side. Come to think of it If it was made to the motor sit on the suction side then it would draw in. Certain stoves maybe that way..I;'m not sure. You have a good idea.. that thing must really suck...........pics?

 

[midfielder]

Haha - suck it does. It can even do a decent impression of the leaf blower trick if I crank it,. lol. There's a good solid state control on it and between that and the draft butterfly, I have pretty good control of airflow through the stove...