On Oct 11, 5:22*pm, allanc wrote:
A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

I have calbirated units, I must because the city can fine me for not
supplying tenents with enough heat. You need a marked calibrated glass
mercury or liqued filled thermometer, heating supply places have them
but call first or go online to like Granger. I have tried the ice
method but its not easy to get it exactly. Then I buy thermometers I
can adjust or slide up or down the thermometer in its casing. You can
then adjust the digital to match. 1 degree is important to me since I
pay thousands a month in Ng, tennants lie and say they are always
cold, I just had one couple say they were cold when it was 74 in his
apt and he had his T shirt on. They proceeded to run their electric
heater to keep the place 79, ran up a 800$ electric bill, moved and
stiffed everyone. 1 degree makes a difference in my gas bill. Stores
sell uncalibrated humidistates and thermometers.