Nest is Compatible with Most Heating and Cooling Systems The good news is that Nest designed its thermostat to run with many different 24-volt systems, including older ones. This covers heating and cooling systems that run on: Natural gas.

Is Nest thermostat compatible with HVAC?

The Nest Learning Thermostat is compatible with the biggest range of home comfort systems, such as heat pumps, furnaces and air conditioners.

Which HVAC systems are compatible with Nest?





Google Nest thermostats are designed to work with most 24 V systems, even older systems.



These include:

  • Dual fuel systems (heat pump with furnace)
  • Dual transformer systems (Systems that have more than one R wire)
  • Whole-home humidifiers and dehumidifiers (compatible with Nest Learning Thermostat only)


How do I know if my Nest is compatible with AC?


Quote from Youtube video: System to see if your hvac system is compatible with the nest thermostat go to nest.com. Works select nest thermostat.

How do I connect my Nest thermostat to HVAC?

Connecting the HVAC system wiring to the Nest Thermostat base is easy using the press connectors. Simply insert the wire into the connector as far as it will go until the press connector stays in the down position. The Star connector on the Nest Thermostat can control a number of different applications.

Is Nest thermostat being discontinued?





On May 7, 2019, it was announced that Works with Nest would be discontinued effective August 31, 2019. Users are being directed to migrate to Google accounts and Google Assistant integration instead; doing so will remove the ability to use Works with Nest.

Does Nest require AC wire?

With a Nest Thermostat E or Nest Learning Thermostat, you’ll need to install a C wire if the thermostat has power issues or its battery often drains.

Does Nest work with ductless systems?

Yes, some of the most popular ductless systems are compatible with the Nest Thermostats. However you will often need to purchase both the Nest Thermostat and a compatible adapter.

Is Nest compatible with heat pump?

Compatibility. The Nest Thermostat E works with 85% of 24V heating and cooling systems, including gas, electric, forced air, heat pump, radiant, oil, hot water, solar and geothermal.

Does Nest thermostat work with split systems?



You can now easily control VRV/VRF, Split, Multi-Split HVAC Systems with Nest thermostat via CoolAutomation’s HVAC gateway devices such as CoolMasterNet and CooLinkNet.

What is the difference between RH and RC on Nest thermostat?

There is no standard for the colour of the RH wire, but most units use a red one. The RC wire, on the other hand, refers to “red cooling”. It’s the same with the RH wire in that it powers the thermostat. For the RC, it powers the cooling system.

Does Nest need RC and RH?

The Nest Thermostat E only has an R connector, which is typically where an R wire would go. If you have separate heating and air conditioning systems, you might have separate Rh and Rc wires that come out of the wall and are connected to your system.

How do I install a Nest thermostat without a C wire?



You can install a Nest Thermostat without a C-wire by using a C-wire adapter, that mimics a traditional C-Wire without you having to wire it. If you are not a handyman, it saves a lot of money that you would otherwise have to spend on a professional installer too.

Does Nest thermostat need power supply?

The Nest Thermostat must be plugged into mains power or wired into a heating system’s power supply to function. Without a constant power supply, it won’t be able to control a home’s HVAC systems. It does have a built-in battery to cover power outages, but this won’t continuously run the device.

What is C-wire?

WHAT IS A C-WIRE? A C-wire, or a common wire, runs from your low voltage heating system (24v) and carries continuous power to your thermostat. In today’s electric market, most newer heating and cooling systems have C-wires, which guarantees compatibility for the installation of all smart thermostats.

Can I use a Nest thermostat with only 2 wires?

The Nest Thermostat is compatible with 2 wire low voltage HVAC systems that are either heat only systems or cooling only systems.

What is the OB wire on a Nest thermostat?



O/B connector can be used to control several different system functions, depending on what type of system you have. For example, you can use the star connector to connect a wire that controls a humidifier or dehumidifier, or emergency heat.

Can Nest thermostat work without wifi?

Nest will function without a Wi-Fi connection. However, it cannot be used as a “Smart” thermostat and only as a regular thermostat. You can still control the HVAC systems using the thermostat interface. It might still be able to implement the schedule and settings that have been set.

Is Honeywell thermostat compatible with Nest?

The devices most commonly called “smart thermostats”, such as thermostats from Nest, Ecobee, Honeywell, etc., are only compatible with “low voltage” 24v HVAC systems. You should be certain that your HVAC is compatible before you try to hook up a smart thermostat.

Is there a monthly fee for Nest thermostat?

Is There a Monthly Fee For Nest? There is no extra subscription to get full functionality out of your Nest thermostat.

How do I know which Nest thermostat to buy?



In the Nest app

  1. Select your thermostat on the app home screen.
  2. Tap Settings .
  3. Select Technical info.
  4. Refer to the numbers next to the “Display model” of your thermostat. The first digit of the number tells you what thermostat you have: xx is a 1st gen Nest Learning Thermostat. xx is a 2nd gen Nest Learning Thermostat.