On Fri, 13 Dec 2013 22:12:19 -0600, The Daring Dufas wrote:
Is it a 1:1 conversion?
Do folks have a recommended thermostat to use as a replacement?
If I had one that I could program to turn on just before we wake up
and go on just before we go to bed, that would be nice.
This is interesting. Again, we will (from now on) be "gentle" with
the thermostat. That means instead of turning it on or off, we'll
just move the dial to lower or higher temperatures.
$50 bucks or so would do it. I would recommend my model, but it is
Checking around gives you primarily Honeywell. Hmmm, their high end
stuff is good, but...$$$
I have never used their cheapostats.
I could offer you a good deal on my spare Honeywell, but I don't think
you need multi-zones/damper controls. :-)
Most electronic replacement thermostats are very versatile and will
operate on most systems except for the oddball proprietary systems.
You can get a programmable thermostat at any of the big box stores
that operate on either batteries or the 24vac from the furnace. If
you like, get a cheap one and experiment with it. ^_^
Programmable thermostats usually have automatic setback and run based on
time of day. I would recommend you do some reading and choose one
with a program you can easily understand. ^_^
I know guys who've installed them in a closet and left the old one on
the wall. My roommate wouldn't quit screwing with the thermostat on the
small window unit we have in the living room so I jumpered the
connections to the darn thing the last time we removed t from the window
for cleaning and repair. I couldn't get him to understand that the
little unit would not cool the house like the central AC system and
that the little unit would work as a dehumidifier if it was left on with
the compressor running. With the compressor off, it was just a noise
maker. Some folks are hard headed. ^_^
Yep! I bought mine when after we left our other house. It was empty
all last Winter so wanted to keep tabs on the house. We left the
Internet connected so I could monitor the house temperature and bump
up on the really cold[*] nights.
After using one, the thing that sold me on the Nest was the ability to
control the second-stage heat. Since no one was living there, I
didn't care about recovery time so turned off the second stage unless
it took more than two hours to recover. If it's that cold, the second
stage was needed. This control (and WiFi remote) completely sold me
on the Nest. However, I haven't sprung for the second one for the
main floor, here.
[*] Well, it's in East-Central Alabama, so I guess not so "really
On Sat, 14 Dec 2013 23:48:48 +0000 (UTC), Danny D'Amico
Heat pumps often have two "stages" of compressor or a resistive
heating element for very cold weather. When this kicks in, the power
meter goes into turbo-$ mode. Some thermostats kick in the second
stage if the delta-t is two degrees or more. Not good, in most cases.
Amazing. It's not just a Southern thing, though the electric rates
(and the need for AC anyway) down here make them very attractive. My
brother, when he was in N. Philly, had one in his house.
Now you are leading him to another disaster programming new 'stst?, LOL!
Simple mind learns better and quick I observed it all the time during my
days as voluteer instructor for apprenticeship board. I used to teach
would be journeyman mechanics electric/electronic basics.
On Friday, December 13, 2013 11:12:19 PM UTC-5, The Daring Dufas wrote:
That's a good point that I never thought of before. And
now that I think about it, you would think they would just have
put the delay into the HVAC eqpt to begin with. I guess the other
side of the argument is that if it was so bad for the compressors,
you would think a lot of them would have failed in the days of old.
I wonder what they actually did? Did they manage to start anyway
or did they have an overload that kicked out and recycled like
My guess is in old days equipment was more crude and pressure in the
system was not as high as now. Many programmable 'stats have settings
regarding this in their service mode menu. Also they have AI logic as
well. That is why set up menu first asks what kinda system it is
connected to. Electrical, NG, forced air, heap pump, how many stages,
etc. Need to answer all this to run the system properly.
One of my store is in a new LEED spec. building. They installed fancy
high efficiency roof top unit by Lennox. The guy who installed it was
having difficulty setting up the 'stat to match the system saying first
time he installed this type system. I told him don't worry. I set it up
and programmed set back times for heating/cooling every day of the week.
Honeywell made ;stat has some unique features added to it for Lennox.
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