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Author Topic: Heatmor 400 BTU extraction  (Read 1170 times)

heat550

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Heatmor 400 BTU extraction
« on: October 06, 2017, 03:11:07 AM »

Has anyone tried just burning slab wood in the outdoor boiler .  I can get 4ft x 3ft x 8ft bundles oak $50
its ruffly 3/4 of a cord per bundle . and I can get them by semi load . my boilers 54 inch deep . so its like
cutting them in half. and stack them in . any thoughts ?? has anyone tried it . is it a trade off of time spent
sawing and splitting . to staking slabs in boiler ? was told there bigger piece also and de barked . going to
look at them next week .  :thumbup:

Heat550
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d5knapp

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Re: Heatmor 400 BTU extraction
« Reply #1 on: October 25, 2017, 06:11:41 AM »

I burned tons of slabwood in my 400 heat....worked great....especially in the fall and early spring. Dead winter I would mix it with splits....but it worked great regardless. I was getting 8ft slabs and all I would do is cut them in half!!
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Stihl M2 290
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LS XR4145

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heat550

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Re: Heatmor 400 BTU extraction
« Reply #2 on: November 27, 2017, 02:46:47 AM »

Getting 18 bundles slab oak :) Im committed to them now :) coming after it freezes up  :thumbup:

Heat550
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d5knapp

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Re: Heatmor 400 BTU extraction
« Reply #3 on: November 27, 2017, 04:29:20 PM »

I got 24 full cord of hardwood slab showing up tomorrow got it for a great price couldn't say no
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Stihl M2 290
Husqvarna 440 xp
Husqvarna 272
All-Wood Oak Series
Allis Chalmers WD45
LS XR4145

Dansville, MI

heat550

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Re: Heatmor 400 BTU extraction
« Reply #4 on: November 27, 2017, 10:19:23 PM »

Have you used them before ? I'm concerned how long they will last.
Because there going to burn hot. Hope stove can transfer it in to the water fast enough. I only burned logs before.. :thumbup:

Heat550
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heat550

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Re: Heatmor 400 BTU extraction
« Reply #5 on: December 18, 2017, 02:12:45 AM »


Got my slabs ya name for the slabs is Dragon Crack . I put the cap on my chimney extension to slow down the high flyers .
they were hitting 30 feet easy . they burn hot :) thats a understatement dam hot ;)  :thumbup:

Heat550


I got 24 full cord of hardwood slab showing up tomorrow got it for a great price couldn't say no
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d5knapp

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Re: Heatmor 400 BTU extraction
« Reply #6 on: December 18, 2017, 07:43:17 AM »

hahahah, that's awesome. mine have been working out great!!! Mix them with some bigger splits about 50/50 and they work aswesome
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Stihl M2 290
Husqvarna 440 xp
Husqvarna 272
All-Wood Oak Series
Allis Chalmers WD45
LS XR4145

Dansville, MI

heat550

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Re: Heatmor 400 BTU extraction
« Reply #7 on: December 18, 2017, 10:53:44 PM »

Did you turn your thermostat down. I'm getting a 20 degree jump after draft fans shut off . I think it's heating do to coals and steel in fire box is so hot. There is some serious heat in them there oak slabs.. I have boiler set at 150f ..cold stove70f to 140f in about 38 mins. On slabs ..

Heat550


hahahah, that's awesome. mine have been working out great!!! Mix them with some bigger splits about 50/50 and they work aswesome
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d5knapp

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Re: Heatmor 400 BTU extraction
« Reply #8 on: December 19, 2017, 05:07:15 AM »

nope i used to have my heatmor set at 175-185. it would overshoot to about 190.

gpt my heatmaster set at 160-180
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Stihl M2 290
Husqvarna 440 xp
Husqvarna 272
All-Wood Oak Series
Allis Chalmers WD45
LS XR4145

Dansville, MI

heat550

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Re: Heatmor 400 BTU extraction
« Reply #9 on: December 20, 2017, 12:52:46 AM »

We're they oak dry slabs ? I might have to check closer.
I'm heating 6600 spft boiler at 150 degrees jumping to
170 degrees on occasion depending on how many slabs I put in.
180 f it be serious over kill but I will try it up to 160 then if it jumps to 180degree I would be pretty safe..

Heat550

quotequoter=d5knapp link=topic=9280.msg80951#msg80951 date=1513685235]
nope i used to have my heatmor set at 175-185. it would overshoot to about 190.

gpt my heatmaster set at 160-180
[/quote]
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d5knapp

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Re: Heatmor 400 BTU extraction
« Reply #10 on: December 20, 2017, 05:45:34 AM »

yes oak slabs
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Stihl M2 290
Husqvarna 440 xp
Husqvarna 272
All-Wood Oak Series
Allis Chalmers WD45
LS XR4145

Dansville, MI

heat550

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Re: Heatmor 400 BTU extraction
« Reply #11 on: December 22, 2017, 04:05:50 AM »

Did you notice with slabs if you put in alot to get a good coal bed 4-5 inchs . then about every 5-8 hours give a stir keep putting  in about 3-5 inchs more of slabs . and treat it like coal bed. it doesn't take much to keep it all going  . and heat coming out of ex changers stink hot
cycle times are about 5 mins of draft fan and 30-45 mins off time . Heat coming out is amazing . in reality it kinda the way you fire a indoor stove on a cold night .  but once that grate is covered with coals it really pounds out the heat. and Im only dealing with about
8 inchs of coals over the whole grate . and yes chimney extension cap glows red just before draft fans kick off . Crazy heat .

heat550


yes oak slabs
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heat550

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Re: Heatmor 400 BTU extraction
« Reply #12 on: December 25, 2017, 09:06:26 AM »

Yep slabs work good at subzero. It takes more but keeps house warm . Seems 400 is good at the heat extraction.

Heatmor

yes oak slabs
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d5knapp

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Re: Heatmor 400 BTU extraction
« Reply #13 on: December 25, 2017, 09:58:23 AM »

Haha nice Merry xmas
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Stihl M2 290
Husqvarna 440 xp
Husqvarna 272
All-Wood Oak Series
Allis Chalmers WD45
LS XR4145

Dansville, MI

hondaracer2oo4

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Re: Heatmor 400 BTU extraction
« Reply #14 on: December 25, 2017, 01:21:59 PM »

Just to clarify, what is your low and high temps set on the aquastat?
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