Jotul F3CB getting too hot.

[FiyahBurnah]

So I made a cold air drop this weekend between the basement and my 1st floor. Two vents connected by an inline duct fan. Both vents can be closed.

I am only adding that data because this weekend the jotul is getting really hot. Like, it almost got to 700 hot before I could get to it and open the door all the way to let it cool (air was already shut down 100%).

I've been experimenting with smaller splits and that along with the air drop maybe is causing this? I shut off the drop fan to see if that helps.

How hot is 'too hot' (manual seems to just say 'glowing' is too hot though maybe I missed it) and I'm now thinking perhaps I need a damper on it?

Thanks for feedback.

Gratuitous thank you pic for looking at thread:

 

[Chuck the Canuck]

So I made a cold air drop this weekend between the basement and my 1st floor. Two vents connected by an inline duct fan. Both vents can be closed.

This sounds interesting... I assume you are heating from the basement? Perhaps some pics??? Please....

 

[begreen]

Smaller splits + colder outdoor temps + strong wind will do it. Go back to the larger splits and try burning down the coal bed further before reloading.

 

[BrotherBart]

My F3 in the basement ran from 650 to 700 all the time on the 30+ foot flue. Sometimes I was afraid that flue was going to suck a split up the liner. I put a key damper on the pipe.

 

[FiyahBurnah]

My F3 in the basement ran from 650 to 700 all the time on the 30+ foot flue. Sometimes I was afraid that flue was going to suck a split up the liner. I put a key damper on the pipe.

Thanks. What do you run it at now?

 

[FiyahBurnah]

This sounds interesting... I assume you are heating from the basement? Perhaps some pics??? Please....

Not hearing from basement. Just wouldn't mind having some of the basement head move up.


Upstairs air vent

downstairs

 

[BrotherBart]

Thanks. What do you run it at now?

It is a plant stand now. When I quit keeping my office down there I put a pellet stove on the flue so I can turn it on and off when I need to do something there now.

 

[FiyahBurnah]

It is a plant stand now. When I quit keeping my office down there I put a pellet stove on the flue so I can turn it on and off when I need to do something there now.

Sorry. I meant, when you put a key damper on it what did you run it at?

 

[BrotherBart]

It hung out around 600 with the primary air at 1/4.