The Venstar
T3900 is part of the
Thermostats test program at
Consumer Reports. In our lab tests, Programmable Thermostats
models like the T3900 are rated on multiple criteria, such as those
listed below.
Manual operation:
The ease of manually controlling the thermostat's temperature set-point, heating/cooling schedule, home/away and vacation features - when they are available.
Programming:
The ease of creating a heating and cooling schedule considering, navigational, contextual and informational elements that make programming easier, and the number of steps.
Display:
The ease of reading the display considering, character size, spacing, layout and contrast.
