how to vent through a chimney,any suggestions?

[Dr. Buddington]

I don't know if you have that option, but if there your plumbing is nearby, there is a clean out in the main pipe which you can vent in. Remember, sewers aren't fill with shit to the top, there is quite the airflow.
The only reason I'm suggesting this is that if there is a pork chopper FLIRing your house, that chimney is going to be like a bright glowing tower on their screen.

 

[whodair]

i used the stink pipe successfully for about 12 yrs. never needed carbon scrubber...i used a "t" pipe, split into my pvc sewer line. 24/7 ...certain diesel strains actually started to smell outside of my house. i believe the chimney may need to be 35 ft high to not require odor scrubbing

 

[Chimney]

dfgdgf

 

[AOD2012]

hmm.... the piping for my sewer line is all the way across on the other side of the basement, not really an option for me now. yea i definitely have two separate chimneys, one for the fire place, another for the water heater. so do you guys think i will be good without adding any extra piping? it would be a lot easier for me to not do that. and also there is definitely no way that the separate chimney for the water heater will have any connection with the fireplace chimney right? im guessing there isnt because then that would leak carbon monoxide into my house right? thanks people for any more input

 

[transplant]

Yes, you will be ok, vent to chim, no extra pipe needed, if you got gassed from water heater it woulda happend by now. There should be trap door on chiminy in basement take it off & run as big as pipe as you can into it & blow thAt shit out of your house 24/7! Ps make shure you seal off where it enters the chiminy.

 

[AOD2012]

thanks a lot for all the help people.

 

[dunkybones]

I vent through my chimney without problems. Your heater vent has it's own dedicated flue, your fireplace has another one, even if it's all running through the same brick chimney. I have three flues running through my chimney, one for each fireplace and another for the furnace. You don't have to run a new duct through the chimney, the chimney is a duct. You probably won't have much luck trying to get the damper out of the way, they are mortared in when the chimney is built. The chimney draws air even when there is no fire, they're designed that way so you don't get smoke belching back at you when you're trying to start a fire. I left the flue open on my fireplace and blocked off the front with plywood sealed up with weatherstripping, my firplace is stone, so the irregular surface made it a little more difficult to get a decent seal. I punched two duct holes in the ply, one for the 6" can fan pulling through the lights, and another venting the portable a/c. I don't have an air scrubber, but my chimney is a good forty feet above street level, as my house also sits on a little hill. Every now and then there is the slightest odor outside, but nothing major, and only when the weather is doing something wierd. If you're at ground level, or have close neighbors, I'd consider some kind of scrubber to stay on the quiet side.

 

[foomar]

Only big problem i have found is condensation within the flue , warm saturated air dumps all the moisture on the cold bricks which then runs back down the flue on a cold day.

Did some serious damage before i realised and cost thousands to repair in less than a year , the hydro was drinking six gallons a day and most of it was saturateing the brickwork and promoteing damprot on the embedded roof and cieling timbers which eventually collapsed.

Worth consideration if you have a cold climate or winter , was not safe to use the house insurance and it could have been much worse.

Managed to drop a stack of six inch plastic drain pipes down from the top and seal it in with a sump below to catch future runoff , twenty foot pressure difference will suck an empty coke can up and straight out the top most of the time and rarely need the fan now.

A woodstove venting to the same stack runs all year round to provide hot water and hides any weedy odours with no filters needed.

With shorter pipe sections or useing flexible continuous it could have been done from inside the house with a little ladder work to finish the top.

 

[fishheadbob]

Your heater vent has it's own dedicated flue, your fireplace has another one, even if it's all running through the same brick chimney. I have three flues running through my chimney, one for each fireplace and another for the furnace. You don't have to run a new duct through the chimney, the chimney is a duct.


I'd feel better if you said that each one is supposed to have it's own dedicated flue. I've seen a lot of awful installations where building codes, safety, and common sense were all ignored. Things like 3 appliances on one flue. Lots of times in older buildings, one unlined chimney was all they had.
An easy way to look inside your chimney from inside the house is with a flashlight and mirror, a lot easier than getting your head wedged in there.

 

[dunkybones]

Your heater vent has it's own dedicated flue, your fireplace has another one, even if it's all running through the same brick chimney. I have three flues running through my chimney, one for each fireplace and another for the furnace. You don't have to run a new duct through the chimney, the chimney is a duct.


I'd feel better if you said that each one is supposed to have it's own dedicated flue. I've seen a lot of awful installations where building codes, safety, and common sense were all ignored. Things like 3 appliances on one flue. Lots of times in older buildings, one unlined chimney was all they had.
An easy way to look inside your chimney from inside the house is with a flashlight and mirror, a lot easier than getting your head wedged in there.

Right you are Fishhead, They are all supposed to have their own flue...

 

[AOD2012]

arite well for now i have it exhausting out of the extra dryer vent. i have spring break in two weeks, and i will be able to check it all out after then. i was thinking about the whole moisture from the exhaust messing with the bricks, which is why im thinking adding piping down there might be a good idea. the fireplace is never used at all so im thinkin that might be the way to go. ill let you people know the dilly when im done.

 

[transplant]

Good Luck! Moisture is somthing to think about...HHMMMM

 

[headband 707]

It's dangerous to vent to your chimney , the danger is the air can come back in. peace out Headband707

 

[AOD2012]

hmmm. headband do you think that if i do put a separate dedicated pipe up the chimney that will stop that from happening? thanks for the input

 

[dunkybones]

AOD2012, is your chimley not lined? Most modern chimneys are brick (or stone) on the outside with a clay pipe (square) on the inside. You can usually see the clay pipe sticking out a couple inches above the top of the chimney.

If you've battened off the fireplace, running a seperate pipe is somewhat redundant, but it won't hurt anything, so long as you can get through the narrow damper section without over crushing the pipe.

As for air coming back down the chimney, that's called down draft, and shouldn't happen if everything is working properly, and even if it does, it should only be momentary, from some crazy wind gust or dramatic atmospheric changes outside.

How tall is your chimney, or how many stories does it run through? Do you have trees growing over the exhaust?

Oddly, I've never had condensation issues, and I live in the mid-atlantic where it's cold in the winter, humid in the summer, and windy all the time.