Too much draft or user error?

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Hinker25

New Member
Nov 14, 2021
2
Green bay, wi
Hey all, wondering if I have a draft issue. Stove was new in July it is a hearthstone castleton. Used it this weekend. Heats house great but feel like I am not getting the optimal efficiency. Chimney is also new this year and it is installed on the main floor of a ranch style house with 8 foot ceiling. Chimeny is mostly vertical except for 2 bends to get away from the middle ridge of the roof.

My issue is fairly active flames even with air control closed as much as possible. I start a fire and engage the catalyst after the thermometer is in the active region. Turn air control down to low in a few steps. Initial wood burns down over a few hours and time for a reload. Open bypass and put large splits in fairly tight. Close door with air control open to get them charred. Close air down again all the way and engage cat.

At this point the secondary is active for quite a while and can see flames coming up from wood in middle of chamber for at least an hour before it slows down and the cat thermometer goes into the too hot range so I open the bypass to help it cool down.

It's been 2 hours since I did a reload and cat is engaged and air lowered all the way and have wispy flame but mostly glowing embers. It looks like most of the wood is consumed already. I feel like I am doing something wrong especially since the cat gets too hot after the reload with air lowest setting. There is no damper installed.
 
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Hinker25

New Member
Nov 14, 2021
2
Green bay, wi
Here is a picture of the firebox 3 hours after adding 3 large hardwood splits. After I added them I turned air to half right away and the after they were starting to catch I turned air to low and engaged catalytic. It ran really well for 3 hours but I checked back and now it was like this with cat thermometer right on edge of too hot.

16369291040706714862189279756288.jpg
 

begreen

Mooderator
Staff member
Nov 18, 2005
91,415
South Puget Sound, WA
Doesn't look bad. A new cat is going to run hot for the first several fires.
 

Kvic

New Member
Sep 12, 2021
92
Middle Tn
I just experienced the same thing last weekend with a Buck stove installed in July. Don't know how I missed this, as I was scouring the forum looking for answers. I didn't do a reload on my first burn, but the cat got close to the max temp range but eventually dropped. On the second one did a reload and had flames similar to yours but about 30 minutes after the reload and cat got toward 1600 deg. Talk about pucker factor.

I opened the bypass as well to help cool it down, but a response from Highbeam on my thread said not to do that as it could cause damage to the bypass opening.

Looks like fun in store for both of us learning new cat stoves.