hot coals but no heat transfer?

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CowboyAndy

CowboyAndy

New Member
Feb 29, 2008
744
Chateaugay, NY
I have a newmac forced air furnace. when we get down below 10 degrees or so, i cant keep up. the temp in the house starts falling, but if i go to add wood there are so many coals, and they will melt your face off. but that heat doesnt seen to be transfering to the main trunk on top of the furnace. it gets to the point where i have to shovel the coals out by the bucketful to get enough wood in for a somewhat decent overnight burn (4 hours max below zero temps)

why am i not getting heat transfer from the coals?
 
CowboyAndy said:
I have a newmac forced air furnace. when we get down below 10 degrees or so, i cant keep up. the temp in the house starts falling, but if i go to add wood there are so many coals, and they will melt your face off. but that heat doesnt seen to be transfering to the main trunk on top of the furnace. it gets to the point where i have to shovel the coals out by the bucketful to get enough wood in for a somewhat decent overnight burn (4 hours max below zero temps)

why am i not getting heat transfer from the coals?
Click to expand...



I get this as well. I open the bottom air wide open and some time the ash pan door as well.
 
CowboyAndy said:
do you get more heat out of it or does that just help to burn them down? btw i dont have an ash pan...
Click to expand...


both I just throw as much air as needed to burn it down, but the blowers are getting enough heat to stay on, and its a lot easier than shoveling them out.
 
I get a decent amount of heat on coals with our furnace, but when its cold not enough. What I do is rake the coals forward towards the front of the door (Wherever you have incoming air) then add a small split or 2 of softwood and open the air up. Do this a couple of times and it will give good heat and burn down the coals at the same time. Once you get to a point where there not too many, then level them out and load up.
 
laynes69 said:
I get a decent amount of heat on coals with our furnace, but when its cold not enough. What I do is rake the coals forward towards the front of the door (Wherever you have incoming air) then add a small split or 2 of softwood and open the air up. Do this a couple of times and it will give good heat and burn down the coals at the same time. Once you get to a point where there not too many, then level them out and load up.
Click to expand...

I would second this, I have used many of these over the years, they are just about standard issue in most farm houses around here. The HX in these units like flame since they are very tall inside. Also check that your fan above the door comes on and that the flow is not obstructed at the bottom of the door. (in those units the air flows through the inside of the door.
Hope this helps.

Henk.
 
hogstroker said:
laynes69 said:
I get a decent amount of heat on coals with our furnace, but when its cold not enough. What I do is rake the coals forward towards the front of the door (Wherever you have incoming air) then add a small split or 2 of softwood and open the air up. Do this a couple of times and it will give good heat and burn down the coals at the same time. Once you get to a point where there not too many, then level them out and load up.
Click to expand...

I would second this, I have used many of these over the years, they are just about standard issue in most farm houses around here. The HX in these units like flame since they are very tall inside. Also check that your fan above the door comes on and that the flow is not obstructed at the bottom of the door. (in those units the air flows through the inside of the door.
Hope this helps.

Henk.
Click to expand...
i had thought of that, thinking that it was plugged with ash/creosote or something, but the passages are clean as a whistle.
 
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