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Old 12-11-2012, 09:37 PM   #31
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Furnace not getting past 76 degrees


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Originally Posted by Technow View Post
Actually I am kind of curious why its called that since I grew up there before I moved to Richmond. Why don't you enlighten us?

The problem with the 70 degrees is my fault.


The "windy city" was named for it's gossip. And do you really think that calling the DIYer "stupid" is the way to go?

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Last edited by beenthere; 12-12-2012 at 04:30 AM. Reason: Removed comment from quote
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Old 12-11-2012, 09:47 PM   #32
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Furnace not getting past 76 degrees


the WINDY CITY = the lying politicians blowing smoke up our ass's. much the way they do today.
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Old 12-11-2012, 11:43 PM   #33
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Furnace not getting past 76 degrees


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Originally Posted by Fix'n it View Post
the WINDY CITY = the lying politicians blowing smoke up our ass's. much the way they do today.
Correct!!!
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Old 12-12-2012, 03:32 AM   #34
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Furnace not getting past 76 degrees


Wow! Whats up with all of you? I thought we were here to try helping someone out not spit in their face get back to helping
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Old 12-12-2012, 07:28 AM   #35
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Furnace not getting past 76 degrees


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Originally Posted by Missouri Bound View Post
The "windy city" was named for it's gossip. And do you really think that calling the DIYer "stupid" is the way to go?
I didn't call the DIYer stupid. I said I was told (left your name out of it) When I sent you a PM to discuss your inappropriate post on a backchannel here is how you responded and what I commented on:


Missouri Bound wrote:

I think it's more of your description which inspired my comment. As written, you implied that a furnace will go off on high limit if you try to heat a room to 90 deg. At least that is how it read. And your other comment about a furnace designed for no more than 70 deg was also incorrect at face value, no matter what you intended to say. I see by your title that you are a HVAC tech. It's very important to remember that this is a DIY room and your knowledge, implied or real won't come off as helpful if you can't relate to the typical DIY'er. You can't and shouldn't expect a typical homeowner to understand the tech side of HVAC. Use the KISS method (keep it simple, stupid) for your answers. His problem was straightforward and expounding on limits and design temp. won't help him at all. The best advice given to him was to get a qualified tech out to inspect and solve the issue....in other words..."a furnace guy". I'm sure your intentions are good but remember it's not a professonal site, just homeowners with questions.
Did I answer your question? "

You could have PM'ed Jagans instead you chose to make fun of him and his post.

Let me clear up my original post:

1. I am sorry if It was misconstrued that a furnace is designed to only attain 70 degrees. That is not correct. A furnace can operate and produce any temperature as long as its temp rise and hi limit are not exceeded.
2. Looking at the "system" as a whole-the ductwork air flow may never support operating within those limits and reach the limits too soon for the desired temperature setting.
3. The furnace as installed on this unknown ductwork may NEVER heat above 76-even when everything was new.

There were some great suggestions for the OP to look at for the airflow issue and even some of those were labeled as stupid. What for? Nobody even knows what kind of furnace it is or work done to it or not done to it.
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Old 12-12-2012, 08:01 AM   #36
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Furnace not getting past 76 degrees


GrowOp Joe. Geez.
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Old 12-12-2012, 08:51 AM   #37
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Furnace not getting past 76 degrees


Hawk:

"Hawk Wind" which basically means that the wind is coming down cold, fast, and hard... like a hawk.

Windy City:

Old Reason: Its on the shore of Lake Michigan, and the winds off the lake are cold, and have to work their way between buildings (Here comes Dr. Bernoulli Again) The wind has to pick up in velocity to get around the buildings.

New Reason: Because that's where Obama is from, and he is nothing but wind.
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Old 12-12-2012, 09:33 AM   #38
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Furnace not getting past 76 degrees


Modern forced hot air furnaces have the burner and blower operating somewhat independently of each other, for better fuel efficiency. The burner is turned on and off using temperature limit switches that sense the temperature of the heat exchanger or of the air exiting it and the heat exchanger is kept within a certain range of temperatures. (Also there needs to be some "safety" to prevent the heat exchanger from getting red hot if the blower should fail.)

The house may be too large or too poorly insulated for the furnace to keep up maintaining the room temperature at, here, more than 76 degrees given the current temperature band for the heat exchanger or the overall BTU output of the furnace.

Check the furnace instructions to see what adjustments are available for the limit switches. Do not exceed the settings in the instructions; overheating of the heat exchanger can cause cracking and then carbon monoxide from the combustion chamber will infiltrate the duct system.

You could insulate the ducts in the unfinished parts of the basement so less heat is released there leaving more heat for the upstairs.
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Last edited by AllanJ; 12-12-2012 at 09:46 AM.
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Old 12-12-2012, 09:39 AM   #39
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Furnace not getting past 76 degrees


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Last edited by AllanJ; 12-12-2012 at 09:41 AM.
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