Jotul F500 V3 Oslo conundrum

[JamesGuido]

in december, we replaced our near 30 yr old vermont castings encore defiant with a jotul f500 v3 oslo stove.
we really like the jotul so far, and i don't see a reason why that'd change anytime soon.

however, i am stumped on one function of this new stove...
the primary air control lever on this stove can be completely in the closed position (to the far left side) yet the fire still burns perfectly.
during start-up, i can leave it at the closed position and it'll fire up fine.

the video shows how nice the fire burns with it "shut down".

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the temp on stove top is approx 400ºF, on the flue 20" above at the same time is about 375ºF
doesn't seem like this is normal... like this shouldn't happen.
seems like there may be an air leak somewhere...
the ash door is completely closed, haven't emptied the ashes in three weeks (burn everyday, all weekend long).
the side and front doors are closed completely.

in 2 hours, i can burn approximately 35 to 40 pounds of dry oak in this closed position...
am i missing something... ??

 

[kennyp2339]

New 2020 complaint stoves have larger static air openings to make sure all fuel gases are burnt as cleanly as possible. If you have a higher then recommended draft (.05inwc) then you'll see the side effects greater, best thing to do first is to test your draft with a manometer.

 

[Ctwoodtick]

Fwiw, your video looks like my 2013 Jotul rockland on low.

 

[Bad LP]

My insert will not starve the fire of air. I run it ‘closed’ all the time.
Strange? Yes. I know that for a chimney fire you close off the air supply. In my case I’ll have to create some steam should that happen.

 

[Sailrmike]

in december, we replaced our near 30 yr old vermont castings encore defiant with a jotul f500 v3 oslo stove.
we really like the jotul so far, and i don't see a reason why that'd change anytime soon.

however, i am stumped on one function of this new stove...
the primary air control lever on this stove can be completely in the closed position (to the far left side) yet the fire still burns perfectly.
during start-up, i can leave it at the closed position and it'll fire up fine.

the video shows how nice the fire burns with it "shut down".

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For more detailed information, see our cookies page.

Accept third party cookies

the temp on stove top is approx 400ºF, on the flue 20" above at the same time is about 375ºF
doesn't seem like this is normal... like this shouldn't happen.
seems like there may be an air leak somewhere...
the ash door is completely closed, haven't emptied the ashes in three weeks (burn everyday, all weekend long).
the side and front doors are closed completely.

in 2 hours, i can burn approximately 35 to 40 pounds of dry oak in this closed position...
am i missing something... ??

F 500 V3 Oslo CF

I pulled the trigger on a new Oslo last night!!! The good folks at Preston Trading Post will be delivering a week from Friday, and I can't wait to get that baby onto my hearth. I had a great conversation with the owner about Jotul's combustor r&d, as well as some of their manufacturing...

www.hearth.com

I had a similar experience, once even a small load catches, there's no slowing it down. Too much air allowed in the stove: ash house unregulated ports (2), dog house, airwash, secondary.

 

[CSJ_PA]

F 500 V3 Oslo CF

I pulled the trigger on a new Oslo last night!!! The good folks at Preston Trading Post will be delivering a week from Friday, and I can't wait to get that baby onto my hearth. I had a great conversation with the owner about Jotul's combustor r&d, as well as some of their manufacturing...

www.hearth.com

I had a similar experience, once even a small load catches, there's no slowing it down. Too much air allowed in the stove: ash house unregulated ports (2), dog house, airwash, secondary.

What did you guys end up doing? I am running a newly installed Jotul F500 Oslo V3 and have the same issues. I am pushing 28 ft flues and am thinking a butterfly flue damper is my best bet. (checked for leaks, can't find any)

 

[CSJ_PA]

in december, we replaced our near 30 yr old vermont castings encore defiant with a jotul f500 v3 oslo stove.
we really like the jotul so far, and i don't see a reason why that'd change anytime soon.

however, i am stumped on one function of this new stove...
the primary air control lever on this stove can be completely in the closed position (to the far left side) yet the fire still burns perfectly.
during start-up, i can leave it at the closed position and it'll fire up fine.

the video shows how nice the fire burns with it "shut down".

To view this content we will need your consent to set third party cookies.
For more detailed information, see our cookies page.

Accept third party cookies

the temp on stove top is approx 400ºF, on the flue 20" above at the same time is about 375ºF
doesn't seem like this is normal... like this shouldn't happen.
seems like there may be an air leak somewhere...
the ash door is completely closed, haven't emptied the ashes in three weeks (burn everyday, all weekend long).
the side and front doors are closed completely.

in 2 hours, i can burn approximately 35 to 40 pounds of dry oak in this closed position...
am i missing something... ??

Same here. What did you guys end up doing? I am running a newly installed Jotul F500 Oslo V3 and have the same issues. I am pushing 28 ft flues and am thinking a butterfly flue damper is my best bet. (checked for leaks, can't find any)

 

[JamesGuido]

actually, we did nothing and it seems to have settled in quite nicely... the only thing i started doing since i posted this back in feb2021, i never emptied the ash pan. now, when i want to "kill" the fire, i move the air control lever to the left and it's noticeably dying down.
however, i haven't found the need to do so, but in case i need to leave suddenly and i have a nice fire / heat going, knowing it works is good.

musta been just like a breaking in period and or the full insulated ashpan.
i have since read about other Jøtul F500 v3 stoves with possible air intake with the ash pan.

 

[bigealta]

On another thread a guy put a magnet over each of the 2 ash pan unregulated ports. He reports much better performance in his f500 now. Hope this helps you guys.

here is that thread

New Jotul F500 V3 Owner

I finally retired my trusty VC Encore 2190 that I purchased in 1994 and plan to install it in the barn after I rebuild it. My new Jotul was installed a couple weeks ago. Installation was painless since I took careful measurements and ordered the short leg kit with the stove. Everything mated...

www.hearth.com

 

[ratsrepus]

meeting EPA regs by over firing your stove. I used to have to stick a rag in the back of my Jotul to slow it down.

 

[MEngineer24]

Sad to see the regs are causing these types of issues. Don’t get me wrong I’m all for clean burning but I wish in all cases we could hit that sweet spot of clean burn with optimum efficiency/fire control. Wishful thinking I guess.

 

[ratsrepus]

Sad to see the regs are causing these types of issues. Don’t get me wrong I’m all for clean burning but I wish in all cases we could hit that sweet spot of clean burn with optimum efficiency/fire control. Wishful thinking I guess.

a blaze king can do just that

 

[bholler]

Sad to see the regs are causing these types of issues. Don’t get me wrong I’m all for clean burning but I wish in all cases we could hit that sweet spot of clean burn with optimum efficiency/fire control. Wishful thinking I guess.

Many companies have met those regs without these issues. It isn't the regulations that caused them it's the design of the stove

 

[bholler]

a blaze king can do just that

And regencies and pacific energies and on and on.

 

[ratsrepus]

thats the biggest reason I got rid of mu F500. at times uncontrollable.

 

[bholler]

thats the biggest reason I got rid of mu F500. at times uncontrollable.

The old one (if installed with the proper draft) was very controllable. If you had excessive draft yes it will be hard to control but that is a problem with the install not the stove.

 

[begreen]

Lots of people here have been running the F500 for over a decade without control issues. firefighterjake could be the longest here.

 

[ratsrepus]

The old one (if installed with the proper draft) was very controllable. If you had excessive draft yes it will be hard to control but that is a problem with the install not the stove.

if i remember correctly the dealer said not to use a damper

 

[begreen]

The old one (if installed with the proper draft) was very controllable. If you had excessive draft yes it will be hard to control but that is a problem with the install not the stove.

Or a problem with the operator if the stove is not turned down in a timely fashion. It's a manual operation, not thermostat limited.

 

[bholler]

if i remember correctly the dealer said not to use a damper

Did they test your draft? If it's to high it needs to be brought into spec. The easiest and most effective way to do that is with a damper. Yes jotul says don't use a damper. But they also tell you to install with the proper draft. Sometimes a damper is needed.

 

[ratsrepus]

Lots of people here have been running the F500 for over a decade without control issues. firefighterjake could be the longest here.

i realize that

 

[bholler]

Or a problem with the operator if the stove is not turned down in a timely fashion. It's a manual operation, not thermostat limited.

Very true

 

[begreen]

if i remember correctly the dealer said not to use a damper

If so, the dealer was in error. This is from the F500 manual. (sorry for the all caps, some odd copy/paste thing happening)

OTHER TIMES, CHIMNEY HEIGHT CAN CREATE EXCESSIVE DRAFT WHICH CAN CAUSE HIGH STOVE TEMPERATURES AND SHORT BURN TIMES. EXCESSIVE DRAFTS CAN BE CORRECTED BY INSTALLING A BUTTERFLY DAMPER. IF YOU SUSPECT YOU HAVE A DRAFT PROBLEM, CONSULT YOUR DEALER.

 

[bholler]

If so, the dealer was in error. This is from the F500 manual.

OTHER TIMES, CHIMNEY HEIGHT CAN CREATE EXCESSIVE DRAFT WHICH CAN CAUSE HIGH STOVE TEMPERATURES AND SHORT BURN TIMES. EXCESSIVE DRAFTS CAN BE CORRECTED BY INSTALLING A BUTTERFLY DAMPER. IF YOU SUSPECT YOU HAVE A DRAFT PROBLEM, CONSULT YOUR DEALER.

Wow I am surprised they say that. In most cases they will not give a damper the ok. (Which in my opinion is stupid) but I understand why.

 

[begreen]

Like Blaze King, they recognize the need to keep the draft within spec. Regency has the same thing in the F2450 manual.

Too tall a chimney may prompt excessive draft which can result in very short burn times and excessive heat output. The use of an inexpensive flue pipe damper may be helpful in reducing excessive draft.