We expect this model to perform similarly to the tested Honeywell Home T9 ... The primary power for this thermostat is supplied via 24 vac source. A "C" wire is not required if using power ...

The Honeywell ... whether the thermostat provides some sort of password protection - which limits the ability to change the thermostat's settings. Indicates, when using a 2-wire setup, whether ...

To help you find the best smart thermostats, we called on our staff to test models from Google Nest, Ecobee, Honeywell Home ... comes from an additional fifth wire called the “common” wire ...

We are going to help you understand more about the C-wire—and what you need to know before you buy or install a smart Wi-Fi ...

If you replace your standard home thermostat you find the most common setup has either 4 or 5 wires running to your HVAC equipment. These include a 24 volt AC power wire, leads to switch the ...

Google has added two additional terminals to the Nest Learning Thermostat (4 Gen)’s wiring plate (there are now 12 in all) to ...

Jon Reed is a senior editor overseeing coverage for CNET's home, energy and utilities category. Jon has over a decade of experience of writing and reporting as a statehouse reporter in Columbus ...

In recent EDN design ideas, we’ve seen thermostat designs that meld the functions of sensor and heater into a single device: FET, BJT, or even a simple length of fine gauge copper wire. A virtue ...

It's time to turn up the heat as the Northeast braces for a cold front. Here's the best temperature setting for thermostats.

I’ve been working with computers for ages, starting with a multi-year stint in purchasing for a major IBM reseller in New York City before eventually landing at PCMag (back when it was still in ...

The best smart thermostats we've tested can control your home's heating and cooling with your phone or voice—and might help you save on energy costs. I’ve been working with computers for ages ...

Here are the best smart thermostats that will intelligently heat and cool your home and save you money. When you purchase through links on our site, we may earn an affiliate commission.