Tag: low voltage vs line voltage

Is your wiring compatible with a smart thermostat? Our guide to low voltage, line voltage, and more

You’ve probably heard the term “low voltage” or “24v” while researching smart thermostats – but if you’re early in your research, you might not yet know the difference. The difference is critical: today’s best-known smart thermostats (from manufacturers like ecobee, Nest, and Honeywell) are designed only for low voltage systems. You’ll need to be sure…
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What if I don’t have a C-Wire?

The C-Wire, or “common wire” enables the continuous flow of 24 VAC power to the thermostat. It’s a wire that (if you have one) runs all the way from your furnace to your thermostat. Questions about the C-wire are by far the biggest drivers of traffic to this site, so I’ve written this article to help you…
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