The 4 best smart thermostats that don’t require a C-wire
Upgrading your thermostat to asmart thermostatis a great way to save money on your monthly utility bills, but it’s not a decision to make lightly. Beyond sifting through dozens of products and finding ones that offer all the features you’re interested in, you’ll also need to make sure it’ll work with your existing HVAC system. And if you live in an older home or one without a C-wire, shopping for a smart thermostat can be challenging....