On Tuesday, November 17, 2015 at 8:24:20 AM UTC-5, TimR wrote:
Wait...I'm confused. You were the one that said "I'm one who thinks run
time is a useful measurement. It gives you the best indication whether
your equipment is sized properly..."
Yet it appears that you don't know what "run time" is actually measured,
so you don't really know that "It gives you the best indication whether
your equipment is sized properly".
Do I have that right?
Suspect that you would want it tracking the run time for the blower
itself since, as long as it's running, it's doing its part to clog the
filter/air cleaner. If he doesn't need something fancy to graph the
use, hours per day, peak hours, etc. a simple hour meter connected to
the motor should do it.
Record the hours when you change out the filter, etc. It ain't classy,
but it works.
On 11/17/2015 9:01 PM, Unquestionably Confused wrote:
Forgot to add, that the blower runs longer than the burners in every
system I've ever seen in order to keep the plenum (?) from getting too
hot and warping or whatever. Which is why tracking the blower on state
is going to give you the results desired... or should<g>
On Monday, November 16, 2015 at 5:56:20 PM UTC-5, DerbyDad03 wrote:
Well, seems he's talking about people who don't run it 24/7, which
would be most of us. Or people who at least don't run the fan
separately while doing the test. You don't need to do this for
months. You just need to do it one day when it's one of the coldest
or hottest days. But I can get a general feel for it without
the thermostat having an hour timer, just from observing how long
the furnace is running for an hour, without even using a watch.
Beyond some general observation,
probably not much value in more refined data because IDK from
that how you're going to pin down that it's oversized by XX BTU anyway.
But it could be useful so that if you have say a 100BTU, you know that
you can go down one size. It also assumes that the existing furnace
is working at it's rated efficiency, etc.
On Mon, 16 Nov 2015 04:45:02 -0800 (PST), trader_4
Why does evenything have to be high-tech?
Most people just change their filters when they look dirty, or change
them 2 or more times a year, based on the calendar or when the heating &
cooling seasons begin.
On Monday, November 16, 2015 at 4:20:59 PM UTC-5, TimR wrote:
Yeah, I'm sure the thermostat manufacturers all have that in mind....
Or it could be that they figure that consumers wouldn't use it, don't
need it, how would they explain what it's for, etc..... A filter
change indicator based on fan time, that I can see some consumers
thinking they could use.
I know a heating cycle run time can be recorded on some thermostats. Run
time meter sounds like a winner. I have a vacuum gauge on my system, but I
sully go by head calculation, or just look at filter. I used to ave one of
those whistlers long ago, when too much vacuum occurred.
What troubles me, I heard this whistling the other morning. Me and cats
were disturbed. Never heard that. Sounded like coming from attic. I better
check radon fan in attic.
"Chicago Bob" wrote in message
I don't need a complex programmable thermostat. All I want is to know how
many hours that fan has run so I know when to change the air filter. The
fan runs frequently in the summer and winter, but very infrequently in
the spring and fall. How often the fan runs is determined by temperature.
You can go weeks - or months - without the fan running at all.
I do not want hard on for 4 hours I will be happy for half hour!?!?
On Mon, 16 Nov 2015 03:28:03 -0800 (PST), Uncle Monster
I bought one of those, but then when I tried to slide the filter into
the filter holder, the whistle made it an inch too thick. If I cut
the whistle shorter, I think it would have fallen out of place. How
do people get the whistle into the air stream?
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