Barometric Help

I think the baro is undersized,...I think. Not just talking draft but volume and velocity

I've said it before so I'll say it again,...EVERY coal appliance should come with a manometer!

Carbon12 wrote:I think the baro is undersized,...I think. Not just talking draft but volume and velocity

What? I thought the baro was a 10 inch that led to a 6 inch chimney.. Of course I've been drinking too. Its Sunday..

9 inch Baro damper. 10 inches flu at breech. I'm still thinking about this. Not sure. Somebody get that man a manometer, STAT!!!

I can't imagine many residential heating situations where a whoppingly huge 9" barometric damper could not regulate the draft. Something else is likely wrong here. For the past 10 years that you did not have problems what diameter of barometric damper did your stove have?

Flap closes when unit is fired and combustion blower tends to pressurize that area. Opens when firing stops. I would suspect base of chimney partially blocked or pipe protruding into the chimney too far. Strong draft so baro opens but not capable of any volume.

When I originally set it up, key stoker said it would not be a problem. Up until I changed the layout I never had a problem.

Gentleshepherd wrote:When I originally set it up, key stoker said it would not be a problem. Up until I changed the layout I never had a problem.

You made changes so will have to verify that chimney has not changed.

Keystoker approved a 10 inch to 9 inch to 8 inch to 7 inch to 6 inch pipe setup???? I have always heard that you never reduce pipe size. The 9 inch baro is closing because the 10 inch output is pressurizing the 9/8/7/6 pipe run. It had better be a tall chimney and sucking hard.

Kevin

Ok. As I said before, I have not had any problems with the prior setup - thought I would changeup the prior piping to a different route. The ONLY thing I changed was to add a 9 inch reducer to the starting elbow and a 9 inch T. Everything else is the same as the original setup. The original set up had a 10 inch T off of the starting elbow with a 9inch reducer for the Damper and a 9 inch reducer funneling down to a 6 inch inlet to my chimney. This worked for many years - NO issues.

I had a friend who does HVAC come over to see if he could help and immediately he pointed out that my T that I purchased was incorrect, it was made for a HVAC system and not a furnace setup. I looked at my former 10 inch T and he was exactly correct. Instead of being a true straight T my 9 is a curved T to aid in the flow of Hot Air not exhaust gasses. My Bad for not seeing the difference immediately.

I reconnected the former 10 back up and it works like a charm! Just as it did before.

Lesson Learned.

Thanks for your assistance these past 2 days.

I do have another question but I will start a new post for that.

Thanks again for your help.

...glad everything is working better...but Im still alittle puzzled on how Keystoker ....in good faith...could tell you that its ok to deck your flu down from 10". to. 6".
...I would LOVE to see them document that to you in writing.

...be safe

...glad everything is working better...but Im still alittle puzzled on how Keystoker ....in good faith...could tell you that its ok to deck your flu down from 10". to. 6".
...I would LOVE to see them document that to you in writing.

...be safe

X2......

Kevin

Keep in mind that it was 17 years ago when I purchased it. I had it inspected by a local installer to make sure it all was functional and he said it was. I have not had a problem with it, except for this weekend.

NOT arguing that. It is just improper. A 10 inch outlet requires a 10 inch pipe. The machine is designed around that much flow or it wouldn't have a 10 inch outlet. If you have a draft issue at some point, a 6 inch pipe will not produce enough draft to remove the fumes. Make sure your CO detector is up to date and working.

Kevin

It is and it's never gone off. I guess the draft from the chimney is good enough to make this beast work. My house is about 3000 square feet and it does a phenomenal job of heating it.