Venstar T3900

This Venstar programmable thermostat uses a c wire (24 vac) for its primary power. A "C" wire is required. It can not be used with a 2 wire system. A convenient home/away feature allows for quick setpoint adjustments. A vacation feature provides the ability to override the regular schedule and setback the thermostat during a vacation period.

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CR Expert Take

How did it perform in our expert lab testing?

Overall Score

The Overall Score for this model is derived from our expert lab test results.

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Current Range of Tested Programmable Thermostats

What goes into the Overall Score?

Manual operation

/ 5

Programming

/ 5

Display

/ 5

Ease of setup

/ 5

About

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.

Features & Specs

Features

Touch screen

Events per day

Early recovery

Yes

Auto changeover

Yes

Auto daylight savings

Air filter reminder

Yes

Password protection

Yes

Specs

Primary power

C wire (24 VAC)

Backup power

Two wire compatible

C wire required

required

Power sharing

Warranty (yrs.)

1 yr

Price & Shop

Venstar T3900

CR Expert Take

Overall Score

What goes into the Overall Score?

About

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