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Thread: Setting t stat at 69 degrees

  1. #1
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    Setting t stat at 69 degrees

    I told customer setting the stat this low is not a practical set point.. Since these systems are not designed maintain that kind of indoor temp.. Due tightness of duct system and home..

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    A customer was griping that her t-stat was set to 69 and when she was cooking in her kitchen the temp would jump to like 72. HAH. This was a residence i think. Refer her to a refrigeration specialist me thinks. LOL Or she could invest in new windows with low e glass, double walls, attic and crawl encapsulation, or just a window unit in her kitchen.

  4. #4
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    I run mine at 68 at night when I'm sleeping. It has no issues keeping temp.


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  5. #5
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    If money was no object I would keep mine at 68. Someone tell me how to get the degree mark.... was it alt while typing?

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    Quote Originally Posted by Todd Whaley View Post
    A customer was griping that her t-stat was set to 69 and when she was cooking in her kitchen the temp would jump to like 72. HAH. This was a residence i think. Refer her to a refrigeration specialist me thinks. LOL Or she could invest in new windows with low e glass, double walls, attic and crawl encapsulation, or just a window unit in her kitchen.
    Sell he a hood to suck the hot air out instead of it filling up tje house. Then add some make up air to tje ac unit. I see dollar signs.

  7. #7
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    I'm at 68 now for sleeping. Sitting on the couch typing with no shirt and still a bit warm

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    Quote Originally Posted by BaldLoonie View Post
    I'm at 68 now for sleeping. Sitting on the couch typing with no shirt and still a bit warm
    I'm typing with no pants! I win!

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    I was at a restaurant with an all female kitchen staff. Thermostat set for 62* actual temperature about 65*.

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    Quote Originally Posted by Mike19 View Post
    I was at a restaurant with an all female kitchen staff. Thermostat set for 62* actual temperature about 65*.
    If you asked them to live with 62° in the winter they'd form a lynch mob.

  11. #11
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    Quote Originally Posted by Mike19 View Post
    I was at a restaurant with an all female kitchen staff. Thermostat set for 62* actual temperature about 65*.
    Yikes. I showed up at one the other day where they said it was hot. I walked in and they said "SEE IT'S 70 IN HERE!!! I'M HAVING THE CHANGE OF LIFE AND I'M HOT!"

    Sorry lady....regulation says setpoint is 74...

  12. #12
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    Quote Originally Posted by qwerty hvac View Post
    I run mine at 68 at night when I'm sleeping. It has no issues keeping temp.


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    Same here...

  13. #13
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    I'm at 68 now but will drop to 66 when I go to bed. Stays in 70 all day.

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    office 64 for firearms rehap machine shop. I made it happen of course.

    airport offices 68, and "still hot" ! and we 'moved' their heads out of the beam of overhead cutsie dutsie low volt high intensity 'mod=lite' system...

    Showing a house on a 90+ day?--- 66*f shocks them into signing!


    the 64* guy lives 62 in winter ~~~~ ! he just tolerates 64 the rest of the year.

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    Do these people own stock inthe local electric company?

  16. #16
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    My bills are pretty low considering a poor envelope and old flex. Keep mine at 72° If I did a duct blaster it would be atrocious!

  17. #17
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    It all depends on the system, but you can't get past the engineering and physics. 10 SEER and older equipment were typically designed to have an evaporator coil temp 35 degree colder than the air going across it. 68 degree return AT THE UNIT would equate to a 33 degree coil design temp. That doesn't account for the fudge factor of a few degrees either way, poor airflow, etc. 13 SEER and above normally have an evaporator coil temp 30 degrees colder than the entering air, so you have a little more leeway there.

    This all of course depends on system installation. If all of the returns are on the floor, and maybe the home has a basement, then your coil entering air temp will be lower than the t-stat temp by a few degrees. Add in poor airflow, and you will have problems. System freezing, slugging liquid back to the compressor, shortened lifespan.

  18. #18
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    Hold ALT and hit the zero key

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    Quote Originally Posted by Todd Whaley View Post
    . . . tell me how to get the degree mark.... was it alt while typing?
    PHM
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    When faced with the choice between changing one's mind, and proving that there is no need to do so, most tend to get busy on the proof.

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    Remind me again - how much did you say you weighed now? <g>

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    Quote Originally Posted by BaldLoonie View Post
    I'm at 68 now for sleeping. Sitting on the couch typing with no shirt and still a bit warm
    PHM
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    When faced with the choice between changing one's mind, and proving that there is no need to do so, most tend to get busy on the proof.

  20. #20
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    Hell; that sounds like a Dare to me! <g>

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    Quote Originally Posted by tangogreen View Post
    . . . you can't get past the engineering and physics . . .
    PHM
    --------

    When faced with the choice between changing one's mind, and proving that there is no need to do so, most tend to get busy on the proof.

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