New 110 blower setup.

Don, what are you using to measure draft, the 460 that came with the boiler?

I have two Dwyer 25 manometers. One in the flue before the baro, and one over the fire.

I drilled and tapped a 1/8 male x compression adapter into the smoke pipe and installed a NPT locknut, then ran 1/8" OD copper tube almost to the manometer then adapted the hose using a 1/8" compression x insert. I did the same on the bottom by drilling and tapping the inspection cover. A locknut isn't nessassary here because there's enough metal to keep things put.

plumber wrote:Don, what are you using to measure draft, the 460 that came with the boiler?

I have two Dwyer 25 manometers. One in the flue before the baro, and one over the fire.

I drilled and tapped a 1/8 male x compression adapter into the smoke pipe and installed a NPT locknut, then ran 1/8" OD copper tube almost to the manometer then adapted the hose using a 1/8" compression x insert. I did the same on the bottom by drilling and tapping the inspection cover. A locknut isn't nessassary here because there's enough metal to keep things put.

I have the exact same set up as you in the flue pipe with a Dwyer 25...in the base I have the 460....I drilled a hole in the top corner of the base and put the probe there...I also recently put the probe thru the hole in the view port door and the reading was the same..

I'm running closer to .02 base, .04-.05 up top now