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Author Topic: CL6048 Temperatures Readings  (Read 1758 times)

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Offline Bart May

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CL6048 Temperatures Readings
« on: January 11, 2009, 09:01:39 AM »
Im been taking a close look at water temperatures on my CL6048.
From the day I installed my CL6048 the  19x21 heat exchanger did not seem like it was producing enough heat.
The furnace blower just ran continuously and the house would never get that warm or around 70 degrees.
(I have a very difficult house to heat).

The OWB Heat exchanger is rated at 140kbtu.
This exchanger did not make the air near as hot as the 140kbtu oil furnace did.
(they both use the same blower and CFMs).
The oil furnace alone puts out air at about 125 degrees. With one 19x21  exchanger I got about 100 degree air coming out of the same duct.

So I added a second  19x21 OWB heat exchanger just below the first one.
This second exchanger brought the air temperature up the about the equivalent of the oil furnace.

There seemed to be about 10 degree of water temperature loss between the OWB and the water temperature at the manifold in my basement.
Central Boiler says the CL6048s gauge is accurate + or 3 degrees.
I have 75 of Themopex buried at 18 .

This morning I decided to place my digital cooking thermometer right down into the top of the OWBs water tank.
I found there is actually about a 10 degree difference in reading between the cooking thermometer and the CL6048s gauge.
So this means the hottest I can make the water is 185 and not 195 degrees.

Im interested in members similar experience or ideas.

Bart/VA

Offline whitepineheating

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Re: CL6048 Temperatures Readings
« Reply #1 on: January 11, 2009, 12:12:10 PM »
Bart, hope I can help.....I have sold c.b furnaces in Michigan for going on 7 years now.  I do not have a home we can not heat, and have never put 2 exchangers in one plenum.  The 1st. thing I would look into is your heating system  . Do you have enough heat runs and more important cold air returns back to your furnace.  We had to add some extra feeds and cold air returns to a few jobs because there heating system did not have what they needed for the type of home they had.  Lots of windows, open floor plan, lots of open space.  Your furnace with 185 water temp. will heat your home.
Kevin

Offline Bart May

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Re: CL6048 Temperatures Readings
« Reply #2 on: January 11, 2009, 02:54:25 PM »

whitepineheating,


Thanks for your advice.
My oil heat system is brand new.
The duct exhaust are 8 x 8  for 1500 of floor space.
My second floor has no heat expect what goes up the large open stair case.
(but thats OK Im just talking about downstairs for now)
My return is a single 33x 33 about 4 height in the center hallway (Very Open).
I dont think I have any CFM air flow restrictions.
My homes outside walls are clay block with horsehair plaster directly over top of the block, (No Insulation).
Each room has 4 huge single pane windows 2x 6.
Basically Im heating the air inside the house and not the walls or windows. 
I plan on adding a 22x25 heat exchanger to my upstairs heat pump, and maybe another to the basement.
I know that will make the 6048 eat allot more wood.
Hey but that cool, Im very happy with my 6048.

Thanks Again, Bart

Offline stonebroke

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Re: CL6048 Temperatures Readings
« Reply #3 on: January 11, 2009, 04:55:25 PM »
You might have better luck heating a tent.

Stonebroke

Offline Bart May

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Re: CL6048 Temperatures Readings
« Reply #4 on: January 11, 2009, 05:14:04 PM »
At least the tent stops the wind. :D :D :D :D
I love my old home.
I just need cheap heat and and lots of it.
The 6048 is a life saver, or a back breaker when it comes to hauling wood.  :'(
Thanks Folks!


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