overfiring Hearthstone heritage

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nkasala

New Member
Nov 15, 2024
4
Becket MA
wondering if anyone else runs into this issue with Hearthstone Heritage, when i put in a good load of hardwood i struggle to keep temp bellow 600 degrees, one some occasions I'm pushing almost 700+, i have primary damper closed off completely, and its just a secondary burn in the upper portion of the stove, i also have a flue damper that a can close, but even then the fire seems to go full steam ahead, the actual Catalyst temp seems to be about where i would expect, 3/4 through temp range, should i be concerned, and does anyone else have this issue?

also i have a blower on the stove, i keep it on high when temps get over 550, helps but not enough
 
The first thing to do is to verify that the thermometer is correct. Some are wildly inaccurate. If it is, then try packing the stove tightly with thicker splits, and closing down the air sooner. The flue damper should have a notable influence. How tall is the flue on the stove?
 
The first thing to do is to verify that the thermometer is correct. Some are wildly inaccurate. If it is, then try packing the stove tightly with thicker splits, and closing down the air sooner. The flue damper should have a notable influence. How tall is the flue on the stove?
I have verified the temp, keep air closed off unless the stove under 200 degrees, the flue is about 20 to 25 feet straight up, stove is brand new and all the seal seem tight, my next step will be looking into possible barametric damper, but also wonder if combustion temp is within range, if the stove temp is that important
 
I have verified the temp, keep air closed off unless the stove under 200 degrees, the flue is about 20 to 25 feet straight up, stove is brand new and all the seal seem tight, my next step will be looking into possible barametric damper, but also wonder if combustion temp is within range, if the stove temp is that important
Obvious downfall is the wood burns faster tho
 
The cat will calm down over time. Check with Hearthstone tech. There may be an air restrictor to reduce the primary air.

I have verified the temp, keep air closed off unless the stove under 200 degrees, the flue is about 20 to 25 feet straight up, stove is brand new and all the seal seem tight, my next step will be looking into possible barametric damper, but also wonder if combustion temp is within range, if the stove temp is that important
A barometric damper is not a good solution for a wood stove. Diluting the flue gases with cool air is a recipe for creosote accumulation.
 
A new stove may take some trial and error to figure things out. I would experiment with turning the stove down sooner. How large are your splits? Larger tightly packed splits help slow things down verses smaller loosely packed splits.