Before you buy
Overview
Mysa for Central HVAC is designed for 24-V systems, including:. Furnaces and air handlers. Boilers or radiant systems. Heat pumps (with or without auxiliary heat). Fan-coil and PTAC units. It supports multi-stage heating and cooling as well as multi-
Compatibility Checker — for Central HVAC
Mysa Central Compatibility Checker - Popup
Compatibility Guide — for Central HVAC
Mysa for Central HVAC is a 24-volt (low-voltage) smart thermostat designed for central heating and cooling systems. Because its features depend on your system’s wiring and voltage, it’s important to confirm compatibility before installation. This gui
Understanding Your C-Wire (and the Mysa C-Wire Adapter)
Every smart thermostat needs reliable power to stay connected and control your HVAC system. For Mysa for Central HVAC, that power comes from the C-wire — short for “common wire.” This guide explains what a C-wire does, how to tell if you already have
What’s in the Box
Your new Mysa for Central HVAC thermostat comes with everything you need to complete a clean, safe installation. This guide walks you through what’s included, what each part does, and which optional accessories may apply to your setup. Each Mysa for
DIY vs. Professional Installation
Mysa for Central HVAC is designed to make installation as easy as possible — whether you’re a confident DIY homeowner or prefer to bring in a professional. This guide helps you decide which option is right for you based on your comfort level, wiring
Understanding Low Voltage vs. High Voltage Thermostats
Before upgrading to a smart thermostat, it’s important to know what type of system your home uses — low voltage or high (line) voltage. The voltage type determines which thermostats are compatible with your heating or cooling system. Installing the w