Hearthstone Heritage burn time and heat output

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BrowningBAR

BrowningBAR

Minister of Fire
Jul 22, 2008
7,607
San Tan Valley, AZ
FROM PREVIOUS THREAD:
[quote author="Den" date="1330977061"]Ah, the ol' "useful output" debate. I dunno how much it's worth. . .I just like it when my stove stays warm and waits patiently for me to come and stoke it, rather than going cold after the fire is gone. :)[/quote]

I don't know of anyone that would consider 100-140 degrees useful. Starting up a soapstone at sub-150 degree temps is pretty much a cold start. I don't care if it can sit at that temp for 20 hours, it is no different than sitting at room temp.

The Heritage will stay over 300 degrees for 4-6 hours. It will remain warm for up to 8 hours. After that, the stove is sitting at 100-140 degrees. I find this to be not much different than a cast iron stove.
 
I don’t recall how long my old Homestead retained heat but I know my Keystones can still have a 250-300 stove top after 10+ hours and it’s still putting out enough heat to keep my house temps steady. I would of thought the Heritage would be similar, maybe it’s that old leaky house that’s sucking the heat out of that stone?
 
Todd said:
I don’t recall how long my old Homestead retained heat but I know my Keystones can still have a 250-300 stove top after 10+ hours and it’s still putting out enough heat to keep my house temps steady. I would of thought the Heritage would be similar, maybe it’s that old leaky house that’s sucking the heat out of that stone?
Click to expand...

Oh, that is definitely possible. But the Keystone is a lot more efficient than the Heritage.
 
On our Mansfield in the showroom, the useable heat (to me, where a stove is just hot enough where you dont want to lick it) can be 8-10 hours or so if I load it right. The neato heat (wow, feel over here, its still warm!) can be 15-20 hours.
 
I now have a mental image of Frank running around waiving his arms with his tongue hanging out.
"buh I din't tink it whas still ot"
 
Jags said:
I now have a mental image of Frank running around waiving his arms with his tongue hanging out.
"buh I din't tink it whas still ot"
Click to expand...

I now picture Franks to look like a very young Ron Howard.
 
Franks said:
On our Mansfield in the showroom, the useable heat (to me, where a stove is just hot enough where you dont want to lick it) can be 8-10 hours or so if I load it right. The neato heat (wow, feel over here, its still warm!) can be 15-20 hours.
Click to expand...

Ah.... the "neato heat" factor. have to admit we had some friends from town over a while back, and she noticed the stove was still warm. She grew up with some sort of steel wood stove. I had not done anything with the stove in 24 hours when she felt it up, and she was amazed that the thing was still noticeably warm.

I kind of disagree on the stove at 150 is doing nothing. It may not be heating the whole house, but since the heat pump blows air cooler than that when running in normal mode, that 150 or so degree stove is heating the room it's in at least as well as the heat pump would.

I have found our Mansfield is probably not lickable 8-10 hours after loading if I have done my part. I loaded last night at 10pm, was aired down at 10:20 or so. Got up at 7:30 this morning to a warm house and stove top still over 200 (25F for a low, windy). Raked coals, opened air, walked dogs, put on 5 good sized splits, took off in about 5 minutes, stove top back to 500 by 8:30 or so.
 
If you need more heat than a 200 degree stove then restoke it. It is an absolute fact that a 200, even a 100, degree stove is adding btus to the room so long as the room is cooler than the stove. Here's the deal, the stove gets to 400 a LOT quicker from 200 than it does from 100. That first couple of hundred degrees takes a long time. This is why I prefer to keep the stove warm or hot, not cold.

What was the point of this thread again?
 
Highbeam said:
It is an absolute fact that a 200, even a 100, degree stove is adding btus to the room so long as the room is cooler than the stove.
Click to expand...

Never said it wasn't a fact. But 100-200 degrees is not heating a house during the winter. And for me, 9 hours later, he stove is well below 200. 6 hours later it is usually below 250.


What was the point of this thread again?
Click to expand...

The point was to not side track the other thread since the point of the thread was which stove to buy and not the finer details of soapstone/non-cat/cat/cast iron.
 
My Mansfield keeps the house warmer than the old steel after the fire has gone out. I can't compare it to cast never had one.

Never dawned on me to lick it to see if it was hot.
 
Our 30 and the fireplace around it sometimes stays around 100-150 for the whole day after an overnight load has burned down. In our case it is a blessing because the downstairs gets no solar gain whatsoever but the upstairs soaks up a lot of sun. That low heat for a long time keeps the downstairs just right until time to dig out some coals and relight at sundown. Without overheating upstairs during the day.
 
BrowningBAR said:
sub-150 degree temps is pretty much a cold start. I don't care if it can sit at that temp for 20 hours, it is no different than sitting at room temp.
Click to expand...

I read the above as you stating that a sub 150 stove is not adding heat to the room. Which I believe to be totally false. You don't have to like stone stoves, but you can't say that a warm stove heats as well as a room temp stove. Try taking a bath in 150 degree water, it's not as hot as 400 but still making btus.

The thread title is misleading, this theory applies to all stoves with high thermal mass. Yes, even cast iron behaves similarly if there is enough of it.
 
Highbeam said:
BrowningBAR said:
sub-150 degree temps is pretty much a cold start. I don't care if it can sit at that temp for 20 hours, it is no different than sitting at room temp.
Click to expand...

I read the above as you stating that a sub 150 stove is not adding heat to the room. Which I believe to be totally false. You don't have to like stone stoves, but you can't say that a warm stove heats as well as a room temp stove. Try taking a bath in 150 degree water, it's not as hot as 400 but still making btus.
Click to expand...

Bad comparison. If I spent my time laying on the stove, then I'd agree. But, I'm sticking to my point that a stove sitting at under 150 is not producing usable heat and offers me little benefit. Also, that specific quote was referring to starting up the stove.

The thread title is misleading, this theory applies to all stoves with high thermal mass. Yes, even cast iron behaves similarly if there is enough of it.
Click to expand...

How is the thread title misleading? I simply made another thread so I did not junk up an existing thread. This thread is about Heritage burn times and heat out put.
 
This situation and stove output analysis is not relative to the stove, it's relative to the amount of btus that are rapidly getting sucked out of the room/house and transferred outdoors. All it means is the house is losing btus faster than a 150F stove puts out, be it steel, stone or cast. Someone in a more conventionally constructed and insulated house could be fine with this slow release of heat.
 
And lets not forget masonry heaters, which are designed to heat the whole house or at least a large area.. and never get above 150F. If a maonry heater is heating at 150, then so is any other object. The only difference is size.
 
This thread reminds me of the old Jeep marketing. It's a soapstone thing, you just wouldn't understand.

Soapstone evens out the heat. When it's absolutely rolling along, you can stand next to it and not be over taken by the heat. Try that on a cast iron stove.

Hours after a cast iron stove has stopped giving off heat, the soapstone is still giving you something. Depending on the room size, it could potentially keep a room somewhat warm 12 to 15 hours after loading. I know mine does.

Sure it takes a while to recover after I reload, but it's not a big deal. The radiant heat from the door glass gives me warmth about 20 minutes after reloading.

I have had both stoves. I will never go cast iron again. It's stone all the way.
 
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