How to Replace a Thermostat in Your home

The thermostat of the HVAC unit in the home is an important component that controls the comfort level in the home. The thermostat will control the switch on and switch off of the unit as well as allow you to save energy in the home by offering varying adjustment options. When this portion of the unit breaks down, it needs to be replaced. A thermostat can be replaced by the home owner if the right steps are taken. Below is a simple guide to installing a new thermostat in the home. 


First you will need to prepare for the new installation. You will need to check the current make and model of your unit. This will be the easiest installation. If you choose to install a new unit type, the installation may be a bit more difficult. The make of the thermostat will usually be marked on the front of the thermostat. You can then visit the website of the system to identity the model if need be. 

Usually, thermostats are fixed to a sub-base. If you purchase the same unit type, you will be able to keep the sub-base, which will save you money and help with installation. The sub-base is the portion of the unit that houses the wiring and is fixed to the wall. Once you have identified your unit type, order a new thermostat for installation. 

Prepping the Area

The old thermostat must first be removed to begin the new installation. Sometimes the thermostat will pull right off of the unit and other times you may have to remove screws. Determine which needs to be done and proceed. Once the plate has been removed, you will be ready to add the new unit. 

Replacing the New Thermostat

The new thermostat is now ready to be set in place. With most models, you will have tabs that will hook on to the thermostat to hold the unit in place. You will need to hand the new thermostat on the top at the tabs and then attach to sub-base. You will then swing the unit top down and press the bottom inward to attach. The thermostat should snap easily in place. You can then attach screws if they are needed. 

The ease of installation will be based on the type of thermostat you have. Read any directions carefully and if you still have issues, contact a local HVAC technician. You may be able to receive assistance over the telephone without having to pay for service.  Or you may know a handy man that can help you install the unit. Either way, take your time and make sure the thermostat is installed correctly so your unit will work as it should from the time of installation. 

Once your new unit is in place, you will need to record the time of installation. Check the unit at least once a year to ensure the thermostat is working well. Keeping record will allow you to remember how old your thermostat is and alert you of when a new installation may be needed. 

Common Standards to Look for in Any HVAC System

What are you going to look for in an HVAC (heating, ventilation and air conditioning) system? 

#1 Comfort level.

Remember, you are concerned with is a high level of air quality in your air conditioning system, whether it is central air or something else, and you are also looking for a high level of comfort.

 After all, what good is an air conditioning system if you can’t be cool or warm at any given time? And what good is it if you are constantly in need of AC service? 

#2 Annual Fuel Utilization Efficiency rating.

Let’s say you have contacted an HVAC contractor to execute an air conditioning replacement. What are you seeking? One thing might be the AFUE, which is the Annual Fuel Utilization Efficiency rating. 

This is an average rating, and most reliable systems will be in the 90% range or higher. 

#3 Seasonal Energy Efficienc Ratio.

There is also the SEER, or Seasonal Energy Efficiency Ratio, which is calculated with a formula that relates to BTU’s (British thermal units) and watt hours. In layman’s terms, if you had a SEER unit with a rating of 18, it would be using half as much energy as one that had a rating of nine (9).

 Needless to say, you can save on air conditioning repair over the long run with a newer, more efficient system. 

All residential air conditioners that are sold in the United States must have a SEER rating of at least 13. Many of the older units are below that, so you may want to contact an air conditioning contractor to replace it. 

We are certified HVAC air conditioning service people. In addition to that, we are available for emergency service as well. Whether you are looking for a new, more efficient air conditioning system, or need to take advantage of our 24/7 service for AC repair, please don’t hesitate to be in contact.