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Author Topic: Losing 12-15 degrees from Boiler to house... before hitting heat exchanger.  (Read 14920 times)

PMo

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How did you make out?

Hey Hondaracer... thanks for checking in.

So...   You were correct... my indoor gauge was off.   

Tonight my stove was at 191 degrees... and my indoor boiler that I feed was reading 179.  So I am losing 12 degrees from the OWB to the furnace... 

I am not sure how your systems work... but I am pretty happy with 12 degree loss from outside to inside, through the heat exchanger and through the oil furnace.   (especially considering I feed the output of the oil furnace... so that is prob a bit lower then the water temp actual is.)

Does that sound about right to you guys?

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slimjim

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That actually sounds not bad with the plumbing routing that you describe and the heat exchanger, was the system calling for heat at the time?
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Wood boiler sales, service and installation for the Northeastern USA.

hondaracer2oo4

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So the 12 degree loss is after it goes through the hx and the boiler and then is about to head back to the owb to be reheated? What is the heat loss right after it comes into the basement from the owb before it has gone though any hx? We shoot for the the water at the return to the owb to be a 20 degree drop from when it started the journey. This 20 degree drop is with an average number if in house zones calling for heat.
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PMo

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So the 12 degree loss is after it goes through the hx and the boiler and then is about to head back to the owb to be reheated? What is the heat loss right after it comes into the basement from the owb before it has gone though any hx? We shoot for the the water at the return to the owb to be a 20 degree drop from when it started the journey. This 20 degree drop is with an average number if in house zones calling for heat.

the 12 degree loss is what it is at once it transfers to the inside loop and then makes its way to the boiler.   I don't have a reading on what the water temp is at when it goes back to the boiler... I will get one soon.

speaking of this...  here is a question... attached is a pic of my set up...showing the 2 loops and the heat HX...   does this seem like a typical set up.  I have seen some that are no filters are gauges, straight into the HX....  I have seen other with no HX, with the loop going straight into the boiler (which acts as the HX)

Sometimes mine seems like crazy overkill, compared to others I have seen...   I hate to ask the question...  but did I get sold on a bunch of stuff I don't need by my dealer?   








[attachment deleted by admin for space issues]
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hondaracer2oo4

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Looks like a nice set up to me. What is the loop that heads up and out of the picture with the blue pex?
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PMo

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Looks like a nice set up to me. What is the loop that heads up and out of the picture with the blue pex?

thanks

that connects to my well.   I initially installed it near the thermostaic valve to fill the boiler...   I then did a T off of it so I could have it in-between two shutoff valves so I could force water in both directions to try and get rid of air in the line.   

 
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slimjim

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Looks like a nice set up to me. What is the loop that heads up and out of the picture with the blue pex?

thanks

that connects to my well.   I initially installed it near the thermostaic valve to fill the boiler...   I then did a T off of it so I could have it in-between two shutoff valves so I could force water in both directions to try and get rid of air in the line.
That makes filling and purging the air soooooo much easier doesn't it PMo, This is just one of the issues that Roxann has
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PMo

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Looks like a nice set up to me. What is the loop that heads up and out of the picture with the blue pex?

thanks

that connects to my well.   I initially installed it near the thermostaic valve to fill the boiler...   I then did a T off of it so I could have it in-between two shutoff valves so I could force water in both directions to try and get rid of air in the line.
That makes filling and purging the air soooooo much easier doesn't it PMo, This is just one of the issues that Roxann has

Did you name your boiler Roxann?  I was trying to come up with a name for mine... but after the last couple weeks it was not going to be nice...   now that I am up and running..  I will give it a couple weeks of being awesome before I come up with a name I can use in public.   :)

It does make it easy... although, I did it while the system was hot...  and I cracked a gauge.   Lucky I didn't do any other damage... as it was cold well water into a hot system.
 :bash:

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slimjim

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No roxann is another member who is having difficulty with her boiler and install, Regarding namingthe unit, start a thread and let us help, I'll vote for WOODY
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PMo

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No roxann is another member who is having difficulty with her boiler and install, Regarding namingthe unit, start a thread and let us help, I'll vote for WOODY

WOODY might win without even starting a thread... 
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bigdaa

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Noce sit up - what type of filters you are using?
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PMo

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Noce sit up - what type of filters you are using?

Thanks!   They are KEYSTONE FILTERS.   Mine are MODEL BBHTX - 10.   
http://catalog.keystonefilter.com/item/giant-cartridge-filter-housings/reinforced-nylon-g/htgx20-non
Not this big... but this is the closest I could find online

I got mine from my Central Boiler Dealer.   Mainlinehs.com in CT.


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Sprinter

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Wow a 12 degree differential and going thru all of that. Think the pump is a little oversized....
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