Am I REALLY Burning Too Hot? (PICS)

Chiefcamper · By: **Chiefcamper** On: Tue Dec 25, 2012 3:38 pm

Hi All and HAPPY HOLIDAYS!!!!!

Hopefully CaptJaq, Ringer, and anyone else I forgot w/ a Godin will chime in. But I'm interested in your opinion no matter what stove you use.

I've been burning my Godin Petit Grand Oval (3727) at one turn out on the draft knob.

The temps on the stove surface regularly hit 700 degrees w the pipe being about 100. As the pile burns down, the temps will drop.

Can't find a Godin Manual that's not written in French LOL, but stamped on the lid, it only states that if the stove or pipe glows red then I'm overfiring (no crap LOL) but it seems even at 750 or an occasional 800 I'm no where near getting anything to glow.

I seem to have absolutely no problem with these numbers. The heat radiating from the stove does not feel like it's overfiring but the thermometers tell the story like it is. I guess reading that some are operating their stoves between 300 and 600 have me second guessing myself or at least questioning the others.

In any case, do you really think I'm gonna burn my house down or kill my stove? Everything else feels fine. Room temp, pipe temp, only using 25 lbs a day.

What Do You Think. Carry on in my usual fashion, or start heating the rest of the house and turn the stove down?

Thanks Much!!!!!!!!!!!!!!!!

Chief

carlherrnstein · By: **carlherrnstein** On: Tue Dec 25, 2012 3:45 pm

Looks really good to me, for what my opinion is worth...

merry christmas

Smokeyja · By: **Smokeyja** On: Tue Dec 25, 2012 4:46 pm

Thats what my thermos are normally at on the WM 414a

lobsterman · By: **lobsterman** On: Wed Dec 26, 2012 9:23 am

You might have a closer look with a laser pointer temperature gun so you can map out the whole stove. Those spring thermometers can be quite off especially if they have been fired hard or dropped. I just checked my No. 6. It is pretty cold out (20s) and I have been running her easy for the overnight, sipping coal and maintaining the room temp at 68. Load of stove coal, everything dampered down, 370 in the lower back of the barrel is the highest temperature I can find, 180 at the stove exit where it enters 30 inches of horizontal stove pipe with a manual damper and fins. After the damper and fins I am at 100 and at the elbow where it enters the chimney I am at 80. I am not saying your stove can't take it but 700 sounds very hot to me for sustained operation. On the other hand, 25 lb a day coal usage sounds very reasonable.
PS this is 12 hours into the burn after loading last night. She will continue like this easily for another 12.

lobsterman · By: **lobsterman** On: Wed Dec 26, 2012 9:36 am

lobsterman wrote:You might have a closer look with a laser pointer temperature gun so you can map out the whole stove. Those spring thermometers can be quite off especially if they have been fired hard or dropped. I just checked my No. 6. It is pretty cold out (20s) and I have been running her easy for the overnight, sipping coal and maintaining the room temp at 68. Load of stove coal, everything dampered down, 370 in the lower back of the barrel is the highest temperature I can find, 180 at the stove exit where it enters 30 inches of horizontal stove pipe with a manual damper and fins. After the damper and fins I am at 100 and at the elbow where it enters the chimney I am at 80. I am not saying your stove can't take it but 700 sounds very hot to me for sustained operation. On the other hand, 25 lb a day coal usage sounds very reasonable.
PS this is 12 hours into the burn after loading last night. She would continue like this easily for another 12 but I will shake her up for a bit warmer daytime burn.

KaptJaq · By: **KaptJaq** On: Wed Dec 26, 2012 11:44 am

25 lbs of coal a day is only about 12,000 btu/hr. That is a comfortable rate for your stove. The cylinder of the stove is the hottest part of it because there is the sheet metal skin, then the 1.25" fire brick, then the burning coals. No air space or insulation at all. A friend has a 3731 and I have seen the skin glow orange. I could barely stand next to the stove long enough to shut it down. He had been burning wood in it and this was the first time he burned coal. Left the air open the same way he does for wood and went to prepare dinner. When I arrived I could smell the hot stove and went to check. Let it cool down a little, then gave it some air, and he was good to go again. Also gave him a bunch of hints on burning coal.

You will start to get a dull red glow somewhere above 900 degrees, orange is well above 1,000.

As long as the stove is in good shape, with the skin of the stove in the 800 or less range (I keep mine about 700) and the pipe in the 200 or less range you should not have any problems.

KaptJaq

EDIT: I have a copy of the manual that Drolet (they were the North American distributor of Godin) used to include with the stoves they sold. If you want an electronic copy PM an e-mail address to me.

Boots · By: **Boots** On: Wed Dec 26, 2012 12:27 pm

wow, and i was . worried abut 600°f temps between my boiler and barro during extended high fire runs.

Chiefcamper · By: **Chiefcamper** On: Thu Dec 27, 2012 9:38 pm

Thank You for the Input All.

After some research (Thanks Jaque and Everyone) at 1lb coal per hour at appx 13,000 btu per lb I seem to be burning fine I guess.

Stove is rated for 10KW which equals about 34K BTU (nominal burn) per hour.

Which in oversimplified terms means I could be burning close to twice as much coal as I am w/out overfiring the stove's rating give or take depending on who says what as far as How many BTU's you get out of a lb of anthracite.

Also taken into consideration is I shouldn't get twice as much heat out of burning twice as much coal?

Anyway looks like I'm plenty safe in the 600-800 degree range, which will do my house just fine.

I also did some research on the formation of anthracite today. Holy Muffins we are sitting on a freakin mine here in Northeastern Pa with the one of two veins (by far the biggest) running right under my house and only covering 3 counties in the entire US. Washington State also having some.

Some estimates saying that 95 percent of anthracite erroded before us humanoids started mining it

Well I'm off to post another Humble question about my stove,

Thanks Again and KEEP POSTING!!!!!!

Joe

Chiefcamper · By: **Chiefcamper** On: Thu Dec 27, 2012 9:51 pm

Just an Add On as far as insulation,

I DID cement between the firebricks, (not the front port), so maybe I'll take a small chisel to it.

KaptJaq · By: **KaptJaq** On: Thu Dec 27, 2012 11:38 pm

Which stove do you actually have? The first message has model number 3727 which is the French domestic version of the Large Oval. Your signature has model 3734 which is the export version of the same stove. The domestic versions of the Godin stoves were imported to North America up to the 70's by local independent importers. At that time, pushed by demand caused by the Arab oil embargo, Godin teamed up with Drolet of Canada and created export versions of their stoves. US manufacturers came on line with their own hand fired coal stoves and, by the early 90s, Drolet stopped importing the Godin product line.

KaptJaq

Chiefcamper · By: **Chiefcamper** On: Fri Dec 28, 2012 1:14 am

Wish I knew for sure Jaq,

Here's what I have in liturature from the last owner;

Spare parts List, Godin, Large Oval, 3734 (old style 3727) List Price (Hand written) 945.00 plus 227.95 Freight

Owners manual; ref 3734 Manufacturer Godin S.A. Guise France, Importer Russo Products (Mass.) Here the Large Oval is listed as model 3734

Another Sheet printed January of 2000 (shipping copy) with a diagram of all 8 firebricks labeled "3734 & 3727 Large Oval

Stamped on front grate: 3727

Stamped inside front door: 3726

Tag on Back of stove: Warnack Hersey Models 3730a,3732,3733,3734

Solid Fuel Burning Space Heater
"Godin, Guise, France
Specs and install info are written in both French and English

So The tag seems to indicate it's an Export version 3734, although I don't know what the actual difference between domestic and export models would be. My Guess is this stove was imported well after 1970 as it looks fairly new but how would I know for sure?

I've ordered Parts from Lawton Imports (UK) and they seem to carry everything Godin including Petit, Grand Petit,(?) Oval and Round entire stoves listed as multi-fuel. I would guess the stoves are still available.

Getting Tired, Must Sleep and go to work in the morning

What You Think?

Joe

KaptJaq · By: **KaptJaq** On: Fri Dec 28, 2012 9:43 am

Sounds like you have a stove that was imported during the 90s after Drolet dropped the line. Warnack Hersey is a testing service that verified things like output and CTC (clearance to combustibles). The tag indicates the models they tested. They did not certify the stoves until, AFAIK, the early 90s.

Godin still manufacturers the ovals - large(3727) & small(3726) and the rounds - large(3121/wood - 3721/wood+coal) & small(3720) in their "Traditional" line. They are still popular in Europe which is why Lawton has parts in stock. When I help people with Godins and I can't find what I need here I usually get the parts from France.

It also sounds like it was refurbished at some time, new fire bricks, etc. A lot of the parts are interchangeable within the traditional line. The same door is used on the 3726 & 3727. Usually only a stove right out of the factory will have the same model number on each cast iron part. Once a shop works on it they use whatever they have in stock that fits.

Your pictures show a very pretty stove that appears to be in excellent condition. My 3721 was installed in 1978, was burned on weekends until 1989, sat in a corner unused from 1989 to 1999, and has been burned 24/7 since. Mine is the workhorse version, the cylinder and many of the cast parts are not enameled. I do put stove black on it each spring and it serves me well.

KaptJaq

jjs777_fzr · By: **jjs777_fzr** On: Fri Dec 28, 2012 11:28 am

I'm skeptical of the magnetic temp reading that high. By chance can you pickup a laser pointed temp gun ? I use the centech model from HF and it serves me very well. It appears dead accurate - at least when aimed at a pot of boiling water where it measures 211-212F.
I'd be surprised to see the stove reading 700F and the vent pipe reading 100F as shown in the pics. (I know I know efficiency but that's bordering crazy).

KaptJaq · By: **KaptJaq** On: Fri Dec 28, 2012 12:33 pm

jjs777_fzr wrote:I'm skeptical of the magnetic temp reading that high. By chance can you pickup a laser pointed temp gun ? I use the centech model from HF and it serves me very well. It appears dead accurate - at least when aimed at a pot of boiling water where it measures 211-212F.
I'd be surprised to see the stove reading 700F and the vent pipe reading 100F as shown in the pics. (I know I know efficiency but that's bordering crazy).

700 for the cylinder is normal, especially if the thermometer is at the same level as the burning coal. The 100 degrees on the flue is also not to far off from where I would expect. He has his air supply down very low. Guesstimating from the pics, the outlet is about 4.25", steps up to 6", then, near the thermometer, steps up to 8". The draft is very slow and has plenty of time to cool before it gets to the thermometer. I assume he has a fairly long flue because with that size pipe and a short flue I would expect draft problems.

KaptJaq

KLook · By: **KLook** On: Fri Dec 28, 2012 12:57 pm

I have to ask what the black iron pipe running down the wall and plugged behind the stove is.

Kevin

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