Jotul F500 OSLO now has a damper! Yippe!

[Jim Buckhorn]

Why did I wait so long? Nice secondary burn, temperature in the high numbers of the burn zone. Just need to remember to open the damper when opening the side door.

 

[pen]

Glad to hear things are running better for you!

What sort of problems were you having before this?

Do you have a very tall chimney?

pen

 

[Jim Buckhorn]

No burn problems. Just keeping heat from leaving the house through the chimney. I don't see why someone wouldn't install a damper.

 

[begreen]

All depends on the stack on the box.

 

[richmhv]

Just watch the condition of your chimney. I have a tiny Ulefos stove in the cellar and my sister said to put a key damper in the pipe. She needed one having an old non-airtight stove that would overfire without it. I closed it one night on an overnight burn or should I say attempted overnight burn. In the morning I found liquid creosote running down the wall by the thimble (just a hole through the foundation to an 8" clay flue. This was in 1979, flex liners and such not well known). I never closed it again. I currently have an Oslo in the living room and see no reason to install one. Chimney is min 15', not too tall. Jotul does not suggest the use of one in their manual.

 

[Jim Buckhorn]

That's right. Jotul doesn't suggest that, so I haven't had one. But it has made a difference for this two story (at least 25'). A better burn, higher temp, and hotter coals. This has a flex liner.

 

[cheechblu]

I had a key damper installed this summer, and so far it had cut down on my draft tremendously. I'm getting great secondary burns now and my loads are lasting so much longer. My stove was over firing because of the strong pull from my tall stack, so I definitely needed one. I'm gonna have my damper checked in another month just to make sure it's not clogging. Since this is my first time.

 

[ailanthus]

My experience has been very similar to cheechblu and Jim. On my jotul with a 27' chimney, I've even rigged a sliding cover for the air intake at the rear underside of the stove to further restrict airflow-I only use it occasionally (high winds, full loads of locust, etc).

I can't imagine running it without at least the key damper, though. I have a chimney probe thermometer & as soon as it hits 400, I start closing down both the damper and the primary air.

 

[wingsfan]

I have an Englander 30 with a 26ft stack, and I couldn't control the over burn until I put a damper in. I feel a lot more comfortable now knowing I can shut it right down if things get too hot.