Choosing A Smart Thermostat For Your AC


Although smart air conditioning (AC) thermostats are good, they come in different forms with different functionalities. Below are some of the issues to consider when choosing a smart thermostat for your AC.

Number of Temperature Sensors

A conventional thermostat has a single temperature sensor, which presents a problem. The temperature sensor is typically installed in an interior wall, such as a hallway. Homeowners expect the sensor thus placed to read the temperature of the entire home. Unfortunately, some houses (such as big houses) have temperature variations across different rooms or areas. A single sensor might fail to serve such homes adequately.

For this reason, some manufacturers have thermostats with multiple sensors. You place the sensors in different rooms or areas of the house. The sensors read individual temperatures of their areas, and you can even use them for personalized or independent cooling of rooms.

Compatibility with Chosen AC

Not all smart thermostats are compatible with all ACs. Confirm that a thermostat will be compatible with the AC you want before replacement or installation.

C-Wire Requirement

The common wire (C-wire) is a dedicated electrical wire that provides power to electrical installations that need to be working all the time. For example, a connected thermostat may require continuous power so that it doesn't lose its Wi-Fi connection. Some homes don't have a C-wire in their electrical wiring, and some ACs can work without a C-wire.

If your existing setup lacks a C-wire, buy a thermostat that doesn't require it or update your electrical wiring first. The latter option will make sense for many households since most modern thermostats require a C-wire.

Integration with Other Systems

These days, people integrate their cooling thermostats with other systems or appliances in the house. For example, you can connect the AC thermostat to your:

  • Smart home hub/controller
  • Smartphone or tablet
  • Smoke detector
  • Automatic vents
  • Security systems

Unfortunately, all these smart home systems or gadgets come from different manufacturers, and they are not all compatible. Confirm that the thermostat you want is compatible with the systems you want to connect to it.

Extra Features

The core functions of smart thermostats are the same — you can program them or connect them to the internet for automatic or remote control. However, many of these thermostats also have extra features, such as:

  • Geofencing systems that allow a thermostat to sense your presence and initiate cooling whenever you approach your home
  • Proximity sensor that allows the thermostat to sense your presence and light up its displace
  • Learning ability that allows the thermostat to master your cooling needs for future automatic control of the cooling system

These are just a few extra features— there are others. For more information about air conditioning, talk to an AC technician.


19 March 2020

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