Bubba wrote:
On Fri, 16 Jan 2009 14:23:24 -0600, Ken wrote:

ransley wrote:
On Jan 16, 7:37 am, Ken wrote:
I have a Tri-level home with two separate furnaces and air conditioning
units. One unit controls the lower two levels and another the upstairs
level. The lower unit has a thermostat located at the bottom of the
stairway leading to the upstairs, and the upstairs had a thermostat at
the TOP of those stairs.

Ever since I moved into this home (30+ years ago), I have had uneven
heat/cooling of the upstairs rooms. When the heat or cooling would go
on, the room temperature would be some 8-10 degrees different from what
the thermostat was reading. Eventually the thermostat would be effected
by the temperature change and would turn off the heat or AC. The only
problem was it ran much longer when it would come on, and the uneven
room temperatures.

Recently I read that a thermostat should NOT be installed at the top of
a stairs. Obviously heat from the downstairs would tend to rise and
impact on the upstairs thermostat when cooling was taking place. The
question I have is why the uneven control while heating is taking place?
One would think that when the upstairs furnace was on, the stairs
would have little or no impact due to the heat rising up?

Finally I decided to do something about this uneven temperature
problem. I took a digital thermometer and looked for a location in the
same hallway upstairs that was more representative of the true
temperature. That is, much warmer than being sensed by the thermostat.
After relocating the thermostat some 10 feet away from the stairs the
temperature is much more even. I am very happy with the result.

My question is this: I can understand the impact of the stairway on
cooling the upstairs, but why did the heating of the upstairs respond
poorly as well? I feel I am overlooking something simple, since I know
it DOES impact it by the results I achieved.
I am only guessing, put the thermostat in a room like the bedroom,
halls are drafty. Heat rises, cool AC air falls so summer will be
different by alot. The thermostat can be calibrated for temp reading
if it is wrong and an anticipator setting on many or swing temp
setting can make heat more even. Factory settings are a start point to
your comfort.
I guess it is all a moot point now, since the problem has been solved.
I did not mention it before, but when I was playing with the digital
thermometer I took it to the area where the thermostat originally was
located and it was reading the same temperature. This was done to
ascertain if the thermostat was reading true. When I found another
point in the hallway that was closer to the temperature in the bedrooms,
I decided to move the thermostat.

Wasnt Bubba the Hvac pro helpfull.

Yes, he was helpful. Like a dose of the Clap!! Guys like him wonder
why people are reluctant to call them for help. They don't exactly
exude confidence.

Hey Ken,
You sound jealous but then I can see why. My dual fuel system I
installed works wonderful. Its nice and warm and even throughout the
house. Its also fairly inexpensive to operate. Strange how that
happens. All the systems I install have a way of working like that.
Gee.......how can that be possible?
Im so sorry to hear that yours isnt working the way it should.

I am sorry that your ability to read and comprehend is so poor. If you
will re-read my post you will see, "After relocating the thermostat some
10 feet away from the stairs the temperature is much more even. I am
very happy with the result."

I suspect you do not listen to customers any better than you do to
people posting on the news groups.

It
seems you had the cheapest hack install yours. As they always say,
"You get what you pay for".

No, quite the contrary. The units were installed by professional HVAC
people who claim to have been licensed. Are you licensed??? If so,
perhaps you attended the same classes they did and might be alumni?

PLEASE take the laxatives, for I would hate to read in the paper that
someone died due to a **** head explosion and ruined a nearly full bag
of chips and an open can of beer!!


You an ransley certainly make a cute
couple.
Bubba