You can probably go online and find instructions on how to do a DIY installation for just about anything. That doesn’t mean you should attempt all of them. It’s one thing to follow instructions on how to wire up your home’s new sound system. It’s quite another when it comes to installing a new thermostat.
We know what you’re thinking: “How complicated could putting in a thermostat be? Don’t I just have to wire it into the wall?” It’s more complicated than that, but there are other reasons why we don’t recommend going it alone on this. If you buy your own thermostat and then attempt to replace your old one with it, plenty can go wrong. Expensively wrong.