Placement of a Thermometer on a Harmon Mark 3 Coal Stove.

 
Thechap
Member
Posts: 63
Joined: Thu. Nov. 22, 2007 5:11 pm
Location: Waynesboro, Pa

Post by Thechap » Tue. Oct. 25, 2016 10:30 am

Does anyone know the placement of a thermometer on a Harman Mark 3 coal stove. Does it go on the side of the stove or the flue pipe?

I really appreciate the help.

Chap


 
User avatar
coaledsweat
Site Moderator
Posts: 13763
Joined: Fri. Oct. 27, 2006 2:05 pm
Location: Guilford, Connecticut
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

Post by coaledsweat » Tue. Oct. 25, 2016 11:25 am

I would have one on each, you are measuring two different things.

 
User avatar
freetown fred
Member
Posts: 30293
Joined: Thu. Dec. 31, 2009 12:33 pm
Location: Freetown,NY 13803
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut

Post by freetown fred » Tue. Oct. 25, 2016 11:45 am

Indeed!

 
Thechap
Member
Posts: 63
Joined: Thu. Nov. 22, 2007 5:11 pm
Location: Waynesboro, Pa

Post by Thechap » Tue. Oct. 25, 2016 4:54 pm

And one more thing is everyone don't mind. What maximum temperatures should I be looking for?

 
User avatar
SawDustJack
Member
Posts: 116
Joined: Fri. Jan. 15, 2016 6:12 pm
Location: Cape Cod
Hand Fed Coal Stove: Newcastle/Ironhouse;Warm Morning 617a
Coal Size/Type: Stove/Nut

Post by SawDustJack » Tue. Oct. 25, 2016 4:58 pm

It depends on what you want to know. I have mine just above the door to watch the stove temp itself. Helps me dial in my air.

 
Thechap
Member
Posts: 63
Joined: Thu. Nov. 22, 2007 5:11 pm
Location: Waynesboro, Pa

Post by Thechap » Tue. Oct. 25, 2016 5:03 pm

I don't want to over fire the stove. There isn't anything listed in the manual.

 
User avatar
lsayre
Member
Posts: 21781
Joined: Wed. Nov. 23, 2005 9:17 pm
Location: Ohio
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Lehigh Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75

Post by lsayre » Tue. Oct. 25, 2016 5:31 pm

Thechap wrote:I don't want to over fire the stove. There isn't anything listed in the manual.
A general rule of thumb is that if you keep the stove adjusted so the thermometer above the door doesn't exceed 500 to 550 degrees F., you shouldn't be over-firing it.


 
Thechap
Member
Posts: 63
Joined: Thu. Nov. 22, 2007 5:11 pm
Location: Waynesboro, Pa

Post by Thechap » Tue. Oct. 25, 2016 5:47 pm

Thanks Larry

 
User avatar
lsayre
Member
Posts: 21781
Joined: Wed. Nov. 23, 2005 9:17 pm
Location: Ohio
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Lehigh Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75

Post by lsayre » Tue. Oct. 25, 2016 5:56 pm

If you find that you absolutely need to, you can press it to 600 degrees on occasion. I wouldn't make a habit of it though.

And if it begins to faintly glow in the dark anywhere, you are assuredly seriously over firing it. At that point you are at about 750 degrees (or more).

 
scalabro
Member
Posts: 4197
Joined: Wed. Oct. 03, 2012 9:53 am
Location: Western Massachusetts
Baseburners & Antiques: Crawford 40, PP Stewart No. 14, Abendroth Bros "Record 40"
Coal Size/Type: Stove / Anthracite.
Other Heating: Oil fired, forced hot air.

Post by scalabro » Tue. Oct. 25, 2016 6:17 pm

IIRC my H MKII owners manual advised a maximum exhaust collar flange outlet temp of 550 deg F. I'm sure the MKIII is the same.

 
User avatar
coaledsweat
Site Moderator
Posts: 13763
Joined: Fri. Oct. 27, 2006 2:05 pm
Location: Guilford, Connecticut
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

Post by coaledsweat » Tue. Oct. 25, 2016 6:53 pm

Thechap wrote:I don't want to over fire the stove. There isn't anything listed in the manual.
You'll be sweating bullets before it overheats! ;)

 
titleist1
Member
Posts: 5226
Joined: Wed. Nov. 14, 2007 4:06 pm

Post by titleist1 » Tue. Oct. 25, 2016 7:33 pm

this is when you need an ir temp gun so you can shoot both spots and drive the cat nuts. seriously, if you are using one of the popular magnetic wood stove gauges it probably isnt too accurate, especially if used on the flue pipe. I have a cheap barbeque probe thermometer threaded into my flue pipe, it gives a nice accurate reading.

 
Thechap
Member
Posts: 63
Joined: Thu. Nov. 22, 2007 5:11 pm
Location: Waynesboro, Pa

Post by Thechap » Wed. Oct. 26, 2016 12:16 pm

I have the air control knob turned out about two thirds to one turn. The temp will get up to 500 with the air control knob turned out this much. When I bank the stove I fill it to the top of the fire brick.

So, what am I doing wrong?

 
User avatar
2001Sierra
Member
Posts: 2211
Joined: Wed. May. 20, 2009 8:09 am
Location: Wynantskill NY, 10 miles from Albany
Hot Air Coal Stoker Stove: Keystoker 90 Chimney vent
Coal Size/Type: Rice
Other Heating: Buderus Oil Boiler 3115-34

Post by 2001Sierra » Wed. Oct. 26, 2016 12:24 pm

Here is an example of 3 styles of thermometers and values they read.

Attachments

Thermometer.JPG

White dial thermometer has probe inside chimney pipe, other 2 measure surface temps

.JPG | 158.5KB | Thermometer.JPG

 
KingCoal
Member
Posts: 4837
Joined: Wed. Apr. 03, 2013 1:24 pm
Location: Elkhart county, IN.
Hand Fed Coal Stove: 1 comforter stove works all iron coal box stove, seventies.
Baseburners & Antiques: 2014 DTS C17 Base Burner, GW #6, GW 113 formerly Sir Williams, maybe others at Pauliewog’s I’ve forgotten about
Coal Size/Type: Nut Anth.
Other Heating: none

Post by KingCoal » Wed. Oct. 26, 2016 4:00 pm

2001Sierra wrote:Here is an example of 3 styles of thermometers and values they read.
so, about 75* higher on the probe than the IR on the skin.

i wonder if that's a common amount of spread between the 2 types of sampling on round pipe ?

thanks,
steve


Post Reply

Return to “Hand Fired Coal Stoves & Furnaces Using Anthracite”