Have You Noticed This With Your Harman?

My P43 is the same way. Pretty sure it's normal. Maybe someone with more experience will chime in.

Noticed a good build up in mine and just did a quick pot scrape which stood the flames right back up. Last night is the hardest my stove has ran to date. The pot developed some crusty build ups of clumped ash and IMO the newly fed pellets were burning quicker therefore reducing their push out or off of the pot power.

I simply opened the door and did the quick three second scrape pulling some spent ash off and agitating the pellets still burning. As soon as the door was shut they stood straight up and ripped away. My stove is throwing some serious heat. The flames were slightly "lazier" but still burning very well. They had a bit more wave in stead of the very vertical disposition.

Mine does the same after burning overnight. quick scrape and all is well. the better the pellets the less carbon build up

F4jock said:

Biggest difference I notice is flame height. Mine about tripled as well as getting a little bit lazy. Heat throw still good tho.

Click to expand...

My flames were still as high just waving hello thru the glass. There was a noted difference of the flames straightening up. Became more crisp and rigid vertically. Thinking about the pot depth I tend to agree but I had about the one inch ash line to the lip. A shallower throat might tend to push some hot embers into the pan. Dunno?

If I am remembering correctly, Harman added a row of air holes lower in the pot on newer stoves. might help this situation. my stove is old.

Mine does the same thing. I just help the ash over the edge and the flame looks pretty again.

Mine does the same thing. I generally try to scrape the burnpot daily. If it gets crudded up again and I have an extra minute or if the fire dies down I will do a quick scrape to pull some of that ash out.

My stove prodouces more smoke when the burnpot is full of ash- I can watch it out my dining room window.

My Accentra 52i was doing the same thing also last night. I also noticed that the hopper was a lot hotter than normal.

might want to turn your feed adjuster up a bit so that the pellet charge is sufficient to push more of the ash out, other than that, its pretty normal

Thanks for posting this. I thought something was wrong.

Jason845845 said:

Thanks for posting this. I thought something was wrong.

Click to expand...

It's hard to get these stoves to quit. Keep that in mind and don't worry about much. Enjoy!

Same thing happens to my P68, I knock down the ash bank and she's back to having a nice crisp 6-8in flame. I have a 2008 P68 and it does have a single row of holes way down in the throat of the burn pot.

Same thing here on my 35i. I didnt think it was anything to worry about because once I pull the clumps and build up of ash down into the ashpan, the flame goes right back to "jet" again.

All of the above is normal boys Burn on

Harman Lover 007 said:

All of the above is normal boys Burn on

Click to expand...

HL:
I'm sure this is normal but last night [7 degrees] my flames we're Roaring very higher and longer than I have ever seen.
I would say due to the cold it was working harder but I have it set at 72 degrees/room temp/manual 3.5 feed, and my living room got up to 78-79 degrees.
stove was like a runaway train.... I turned my temps down a bit because that long Burning Roaring flame made me a bit nervous. Plus it was a bit way too warm.
top of the stove was friggin HOT.
I assume stove temp mode would have done the same..?
wondering also if with an OAK, the exstreme cold air coming into the stove was just adding to the Huge long Blaze...or Aggitating it so to speak...

Tonyray said:

HL:
I'm sure this is normal but last night [7 degrees] my flames we're Roaring very higher and longer than I have ever seen.
I would say due to the cold it was working harder but I have it set at 72 degrees/room temp/manual 3.5 feed, and my living room got up to 78-79 degrees.
stove was like a runaway train.... I turned my temps down a bit because that long Burning Roaring flame made me a bit nervous. Plus it was a bit way too warm.
top of the stove was friggin HOT.
I assume stove temp mode would have done the same..?
wondering also if with an OAK, the exstreme cold air coming into the stove was just adding to the Huge long Blaze...or Aggitating it so to speak...

Click to expand...

Hmm, I didn't have that experience and I'm running an OAK with the low of -18 this morning. Have it on 73 or so, auto light, 4 feed, in the basement. Maybe I'll turn it to manual tonight and see what that does to pellet usage (I burned about a bag in 12 hours just heating the 600 sq/ft).

Tonyray said:

HL:
I'm sure this is normal but last night [7 degrees] my flames we're Roaring very higher and longer than I have ever seen.
I would say due to the cold it was working harder but I have it set at 72 degrees/room temp/manual 3.5 feed, and my living room got up to 78-79 degrees.
stove was like a runaway train.... I turned my temps down a bit because that long Burning Roaring flame made me a bit nervous. Plus it was a bit way too warm.
top of the stove was friggin HOT.
I assume stove temp mode would have done the same..?
wondering also if with an OAK, the exstreme cold air coming into the stove was just adding to the Huge long Blaze...or Aggitating it so to speak...

Click to expand...

I was burning on stove temp 7 over night on my harman p35i with blazer pellwts a lot of black on my window . As well as lot of ash .. Called my dealer he mentioned its not good to be burning on number 6 for long periods of time

What is the highest number the dealer recommended running at? Are they less efficient at higher heat levels or its just harder on the stove?

Tonyray said:

HL:
I'm sure this is normal but last night [7 degrees] my flames we're Roaring very higher and longer than I have ever seen.
I would say due to the cold it was working harder but I have it set at 72 degrees/room temp/manual 3.5 feed, and my living room got up to 78-79 degrees.
stove was like a runaway train.... I turned my temps down a bit because that long Burning Roaring flame made me a bit nervous. Plus it was a bit way too warm.
top of the stove was friggin HOT.
I assume stove temp mode would have done the same..?
wondering also if with an OAK, the exstreme cold air coming into the stove was just adding to the Huge long Blaze...or Aggitating it so to speak...

Click to expand...

Where is your temp probe? If it is in a location that is more affected by the extream cold, ie next to a cold oak, or near a drafty window, then the stove might have been ramping up because it thought your room was colder than 72.

My p43 is running pretty hard right now with the temps between - 10 and - 30. At - 30 she is just about full tilt, running on room temp auto, feed rate of 5. Going through 2.2 bags a day. (of 2.4 theoretical max)

When burning that hot I notice that the stove itself is incredibly hot, like hurts your face sitting in the chair next too it. And the flame is huge, it was alarming the first time I saw it that high.

Also at extream temps the heat distribution in the house is affected. When +30 to - 10, the house will stay within 2 degrees of the set point. At - 30 my house varies by 5 or more.
Your millage will vary depending on home construction, size, layout, ext regarding temps and heat flow.

dlavigne7324 said:

I was burning on stove temp 7 over night on my harman p35i with blazer pellwts a lot of black on my window . As well as lot of ash .. Called my dealer he mentioned its not good to be burning on number 6 for long periods of time

Click to expand...

I was running on feed rate 5 with blazers with no issues. I imagine that if too high your air/fuel mixture may be too rich, causing smoking and dirty glass.

I was assuming number 6 was the stove temp number. if it was the feed rate..that would make more sense