"allanc" wrote in message
...
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.


For openers make up a mixture of ice and water. Before the ice is all melted
check the water temperature. 32F right?

With a normal household thermometer you won't be able to check the boiling
point, but the cold test will tell you if the glass is in the right position
against the scale.