Moved into a new home last Dec, so far we didn't change the furnace
filter (Heating), usually what will be the time period for each
filter?. Also Is it hard to change (I can see "filetr door" sign on
the furnace)?. Please let me know how often we have to change this
We have HONEYWELL thermostat system installed,, in the Summer,
air-conditioning is OK, just before the winter, we moved the system
button from off to Heating (In the summer it will be cooling or off),
then we can see heat comes througth vents for couple of hours, after
that we are not seeing much heating coming through heat vents, very
rarely, like three or four times per day, each time for 3 to Minutes,
but if I set it to "Hold" at 74degree, then heat is coming through
vents almost always, what was the reason we are not getting much heat
without putting "hold"?. I am wondering do we have to turn on any
other switch or something besides thermostat switch?. Here temp are
dropping to 24 night time and 55 day time, but we are getting much
heat. Also onemore thing I objerved is, when the heat is coming
through vents, at the same time cold air is coming through fan vents?.
Is this common?. My fan is set to auto on the HONEYWELL thermostat.
We are new to home, please suggest me what to do, thanks in advance.
Some filters need changing every 2-3 months some every year, depending
on filters size , design and indoor conditions. Look at its condition.
You should get a pro out to clean your system and advise you, a dirty
system will loose you efficiency.
In alt.home.repair on 11 Nov 2004 20:02:08 -0800
email@example.com (Santa) posted:
You don't say where you live. Would that make a difference?
Try to open that door and see.
Is it cold in the house? If not, it's ok.
There are a lot of Honeywell thermostats, and I'm not acquainted with
one that has a Hold button. (The whole purpose of the thermostat is
to hold the temperature where it is set for.)
Maybe the reason it stays on is that 74 is a higher temperature than
the you just had it set at. If you left it on 74 all day, once the
inside temperature (at the thermostat) reached 74, the furnace would
probably not run much more than it is running now, four or five times
a day for 3 to 6 minutes.
If other houses in the n'hood were built with the same furnace, you
can ask those people. If the houses aren't too old, I'm sure some
have the thermostat manual. The man I bought my house from had
manuals for everything he bought and most things the builder had
bought, and I will give them to the next owner.
Things the builder bought that I have manuals for were the steel
fireplace, the bathroom fans, the furnace/ac, the garbage disposal
etc. Maybe I should count the dishwasher, because the builder
installed it, but the guy bought the house before it was finished, and
I think he picked out the make, model, and color. But the thermostat
that came with the house was too simple to need a manual.
When you have a pro service the furnace, you can ask him to explain
the Hold button, and why it seems to make the furnace run more.
If you still need more info, you can find a store that sells your
thermostat and read the instructions for it. A nice retail store might
photocopy them for you, or if you have to, you can buy one, do the
photocopying and then return it. Wholesale places don't like to take
returns iiuc, at least from consumers, but they'll probably let you
take all the time you need to stay there and read the instructions.
More heat than you need? Or do you mean you are still getting
OK, I see you do live where it is rather cold, colder than Maryland.
What are fan vents. In some houses I think -- or at least it should
be that -- the AC comes out of the ceiling vents and falls to the
floor, while the heat comes out of the floor (or lower wall) vents and
rises past the people to the ceiling. The vents that send out AC air
in the summer return heating air in the winter, and those that send
out the heating air return the AC air. At least that is the way I
think it should be.
But I live in a cheaper house than that, and both the AC and the heat
come out of the same vents. When it is time to return to the furnace,
the air has a choice of two vents, one in the stairwell in basement,
and one in the stairwell near the ceiling of the top floor (the 2nd
Auto is a good setting for the fan. It means that the fan will be on
only when the heat or AC is actually running (actually the fan goes on
a little bit after the furnace starts and also stops a little bit
after. To give time for the air to be heated, and to use the the heat
of the furnace even after the burning stops. The AC might be the same
way. It's all controlled in circuits in the furnace. Unless solar
does things much differently.)
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or not you are posting the same letter.
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