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Thermostat question Ronald' 02-01-2007
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Posted by Edwin Pawlowski on February 1, 2007, 3:54 pm



> The actual temperature is exactly the same as indicated on the
> thermostat - measured with 2 different thermometers. The last I looked,
> this thermostat was commonly sold in stores. I called the outfit that
> installed the furnace. They now supply a different brand and type of
> thermostat. It seems that I will be crawling out of the dark ages.
>

In that case, the indicator dial is probably off. Set it to 76 to reach 73.
Problem solved.

Best bet is still a programmable if you want to save some heating money. In
my house, they go up to 70 degrees first thing in the morning, then drop
back to 68 for the rest of the day, then to 64 at night for comfortable
sleeping. The heat comes on 15 minutes before I get out of bed. Works
well.



Real Goods Solar, Inc.
Posted by Felder on February 1, 2007, 6:41 pm


> The actual temperature is exactly the same as indicated on the thermostat -
> measured with 2 different thermometers. The last I looked, this thermostat
> was commonly sold in stores. I called the outfit that installed the
> furnace. They now supply a different brand and type of thermostat. It
> seems that I will be crawling out of the dark ages.

Programmable is the way to go. We had an old mercury t-stat when we
bought our place and had problems getting the temperature set. It
would usually get hotter than the preset temperature. The programmable
we have now is dead nuts on. Very consistent. It's set for 68 when
we're home and that's the reading we get on the t-stat unit in the
hallway and on the thermometer in the living room. I love it. It
pretty much paid for itself last year when natural gas prices were so
high. Now we're looking at getting a new furnace this spring. Our
current one is old (at least 20yrs.), but is very reliable. It's just
not very efficient and I worry about the condition of the heat
exchanger.

-Felder



Posted by TH on February 1, 2007, 1:48 pm


I bought a new one last year, Honeywell.
On Feb 1, 8:54 am, trad...@optonline.net wrote:
> On Feb 1, 8:36 am, twinmount...@webtv.net (---MIKE---) wrote:
>
> > If you have a Honeywell mercury thermostat, Make sure it is level. A
> > slight "tilt" will change the settings.
>
> > ---MIKE--->>In the White Mountains of New Hampshire
>
> > >> (44° 15' N - Elevation 1580')
>
> Ever see a mercury thermostat with adaptive recovery?

Ooops, wrong thread, my bad! But still, he said it was a new
thermostat. They stopped selling mercury thermostats a long time ago.



Posted by David Martel on February 1, 2007, 8:44 am


Ronald,

You say that the temp never reaches the setpoint but you also say that
the furnace is "cycling". What is causing the furnace to shut off before it
reaches the setpoint? Remove the thermostat and jumper the heating wires.
Does the furnace cycle or does it keep running. If the furnace shuts off
call a furnace guy. If the furnace doesn't cycle then the problem is with
the thermostat.

Dave M.



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