Outdoor Wood Furnace Info

All-Purpose OWF Discussions => General Outdoor Furnace Discussion => Topic started by: free heat on February 08, 2014, 02:55:05 PM

Title: stack extension help or hurt stove's performance
Post by: free heat on February 08, 2014, 02:55:05 PM
Just wondering what you guys think about an extension on the stack of your boilers. Around me it's about 50/50 if they put one on or not. Does it help or hurt the efficiency of the stove.
Title: Re: stack extension help or hurt stove's performance
Post by: caper on February 08, 2014, 04:35:36 PM
hey pal,i have a heatmaster 5000,i put a nine foot extension on,it works perfect with no issues,however i do worry alil when we get 100km winds,so just make sure its secured real good,other then that no issues what so ever
Title: Re: stack extension help or hurt stove's performance
Post by: Scott7m on February 08, 2014, 04:54:04 PM
Just wondering what you guys think about an extension on the stack of your boilers. Around me it's about 50/50 if they put one on or not. Does it help or hurt the efficiency of the stove.

Most stoves are designed to work well with what comes on them from factory.

Some of ur natural draft stoves may benefit from a taller stsck, no one answer will cover it all
Title: Re: stack extension help or hurt stove's performance
Post by: juddspaintballs on February 08, 2014, 05:07:01 PM
If it's a well insulated chimney extension, then it's probably going to be alright.  If it's not insulated, creosote will build up in it quicker than a short stack and may not as easily light off and burn up thus clearing out the chimney again.  I would say that if you're going to extend it, make sure it can handle the creosote burning off fairly often.
Title: Re: stack extension help or hurt stove's performance
Post by: victor6deep on February 08, 2014, 05:23:54 PM
Just wondering what you guys think about an extension on the stack of your boilers. Around me it's about 50/50 if they put one on or not. Does it help or hurt the efficiency of the stove.

Most stoves are designed to work well with what comes on them from factory.

Some of ur natural draft stoves may benefit from a taller stsck, no one answer will cover it all
[/quot

I agree with scott on it improving natural draft stoves. My stove is fan forced 65cfm and is actually worse efficiency when I add my 4ft insulated extension. If your stove has a 100+ cfm fan I would say it shouldn't make much of a difference.
Title: Re: stack extension help or hurt stove's performance
Post by: MattyNH on February 08, 2014, 07:59:06 PM
well as a high stack owner here…. Being high doesn't not hurt the stove esp being forced draft ..Natural daft I would think work better..It would get that fire going faster..Besides its recommend/law in some state to add the pipe if you have neighbors