Optimal stove top temp for osburn 3500 insert?

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Torgul83

New Member
Mar 13, 2022
34
North castle Ny
Hey folks,
Proud owner of an osburn 3500 insert and its my first season running it. So far, so good.
I did the ceremonial break in fires, the wonderful smell is no longer.
I've ran my stove top temp to mid 600s F. I'm wondering if this is too hot. Don't want to warp the thing. I'm using an infrared thermometer. The fire brick in the box reads 900s at this stove top temp. I went through the manual and unless I missed it, there is no definitive optimal running temp or temp that is considered "overfire".
Anyone care to share their wisdom?
 
"I have the Osborn 2400i and the Blaze King Ashford insert. These are both cousins of the two units you mentioned. While I am very happy with the Blaze King, I think the Osburn puts out more heat. 2400 sf is a lot to ask of any unit, but I think you’ll do great with either one.

Here’s some input: I find the Osborn firebox accommodates a huge amount of wood almost double what I can fit in the Ashford. The Osburn is a beast of a heater. A full load of well seasoned oak and locust will produce a ton of heat. The heat comes in waves: first 30 minutes heat up, for two-three hours or so of very high stove top temps (500*-700*), the next few hours a slow decline of temp (400*-300*), then it will stay around 300* for a long time with a huge bed of coals. You can reload 8-12 hours later on a large coal bed and restart the process. 300* stove top for a insert is not putting out a ton of heat, but after the 500*-700* temps crank a million BTUs into the house, a few hours of low steady heat is fine."

 
"I have the Osborn 2400i and the Blaze King Ashford insert. These are both cousins of the two units you mentioned. While I am very happy with the Blaze King, I think the Osburn puts out more heat. 2400 sf is a lot to ask of any unit, but I think you’ll do great with either one.

Here’s some input: I find the Osborn firebox accommodates a huge amount of wood almost double what I can fit in the Ashford. The Osburn is a beast of a heater. A full load of well seasoned oak and locust will produce a ton of heat. The heat comes in waves: first 30 minutes heat up, for two-three hours or so of very high stove top temps (500*-700*), the next few hours a slow decline of temp (400*-300*), then it will stay around 300* for a long time with a huge bed of coals. You can reload 8-12 hours later on a large coal bed and restart the process. 300* stove top for a insert is not putting out a ton of heat, but after the 500*-700* temps crank a million BTUs into the house, a few hours of low steady heat is fine."

Thank you.
This is precisely what I've experienced thus far.
Not too many osburn 3500 insert reviews here but I'll do the honors. For an insert, it puts out HEAT. Huge firebox. I fit roughly 10 medium sized splits n/s, and for unusually long splits up 23 inches I can do them e/w no problem.
I have inner wall 24 foot chimney, I didn't get to a block off plate but did stuff the throat of the flu with roxul, and did stuff some ruxul around the stove.
I get to STT of 500 to 600 before I choke it down some and allow for a little dance of flames around the secondary tunes and it maintains this STT for 3 to 4 hours while blowing serious heat. Then as you mentioned, it weans down STT to 300s for many more hours and the blower blows gd heat but not like before. It keeps my large 2400sqft open concept 1st floor in low 70s to high 60s on overnight burns that drop into high mid to high 20F. Waiting to see how she fairs in temps of teens and single digits.
Will keep yall updated as the winter comes along.
Take care friends
 
Hey folks,
Proud owner of an osburn 3500 insert and its my first season running it. So far, so good.
I did the ceremonial break in fires, the wonderful smell is no longer.
I've ran my stove top temp to mid 600s F. I'm wondering if this is too hot. Don't want to warp the thing. I'm using an infrared thermometer. The fire brick in the box reads 900s at this stove top temp. I went through the manual and unless I missed it, there is no definitive optimal running temp or temp that is considered "overfire".
Anyone care to share their wisdom?
I've spoken with SBI on the phone about this topic and for my Osburn 1600 insert the max stove top temp is 840 degrees. 840+ is considered overfire.

I can't say your 3500 is the same exact rating, perhaps the steel is a little different, but I bet the number is similar. Try to keep it 750 or below and you'll be safe. I tend to run my STT between 650-725 when cruising.