Installing 2nd stove

[EricHahn]

We are getting ready to install a second pellet stove in our basement. It will be close, but not directly under, our first stove. That one is an insert installed inside a brick fireplace. The basement unit will be run up and directly out, because running it through the fireplace results in a run that is too long.

My concern is that the exhaust from the basement unit will be too close to the air intake of the other one--about 6-8 feet away. I don't want to be breathing in pellet fumes from the new stove, in the upstairs unit.

Would increasing the length of exhaust pipe help? We could vent it higher than the intake of the other one.

Thank you.

 

[Lake Girl]

Minimum clearance to air inlet for another appliance is 3'. That said, if it is downstream on the prevailing wind from the exhaust vent, you may want to use adjust lower or higher. Standard chart of clearances courtesy of England Stoves:
(broken link removed to http://www.heatredefined.com/assets/images/general/VentTermination_Pellet.pdf)

Hope you are using 4" pellet vent for the basement install ...

 

[EricHahn]

Additional info that might be helpful:
It will be 4" vent and 3" air intake. Total EVL = 28

 

[bogieb]

My downstairs stove is directly under my main floor stove. However, everything runs out thru a basement window that is 4-5' to the side so the pipes from the stoves are 6-8' apart, and the basement pipes are lower than the main floor stoves. (yes, the window is properly blocked and caulked). I don't have any issues and they are directly facing the prevailing wind.

IMHO, If you can get the exhaust above the other OAK, that would be icing on the cake, but if not, you should be fine.

 

[alternativeheat]

Yes it would be nice from the standpoint of the install to have proper separation. But you aren't ever going to smell the exhaust of the basement stove through the combustion of the second upstairs stove anyway, not happening.. If you get a smell in the house it will be from some crack in a wall etc but not because of combustion of your fireplace stove breathing exhaust of the basement stove, if that were the case you would already smell it with the one stove.. Now if the upstairs stove has no OAK, it could draw exhaust from the basement stove into the house due to negative pressure in the house, pretty much regardless of the two stoves orientation to one another. Just run OAK on both stoves and you bypass all that negative air mess.

 

[johneh]

Dumb question here
A pellet stove is a sealed unit from intake to exhaust right
so how could or would you smell air being drawn into the upstairs stove ?
The intake is under negative pressure would it not just be sucked into the fire box
and sent out through the exhaust !
Or am I not reading his question right ?

 

[Lake Girl]

You are reading it right but if you are drawing in exhaust upstairs from the downstairs pellet stove, it may be oxygen deprived and could mess up how the upstairs stove burns.

 

[alternativeheat]

Yep, both stoves really should have an OAK (outside air kit) for intake supply. Also with many manufacturers a basement install requires an OAK anyway. It's really easy for basement stoves to starve for air unless your basement is loaded with air leaks like mine LOL !

 

[Deezl Smoke]

Dumb question here
A pellet stove is a sealed unit from intake to exhaust right
so how could or would you smell air being drawn into the upstairs stove ?
The intake is under negative pressure would it not just be sucked into the fire box
and sent out through the exhaust !
Or am I not reading his question right ?

That's how I read it too. That the occupant human would breath the exhaust. But Lake Girl is correct, there is a chance that the upper stove would suffer burn quality of the lower stove's exhaust is too close. IMO.