If you are living in the US, then a proper home heating system is a must during those chilly winters. Most of the American households depend on furnaces for the same. Furnaces are used mostly for central heating system. These systems work by blowing heated air through ducts that use grills or air registers to deliver warm air, throughout the house. This duct warm air heat distribution system is powered mostly by electricity, natural gas or fuel oil. In terms of AFUE(annual fuel utilization efficiency), the furnace powered by electricity has a higher efficiency in the range of 95% to 100%, since it is free of flue loss through a chimney unlike the ones powered by gas or fuel oil. However, with growing electric prices across different parts of the country, the choice of an electric furnace seems uneconomical.

Nonetheless, the energy consumed by these furnaces can be controlled by controlling their temperature setting, using a proper thermostat. Thermostats are nothing but temperature sensitive devices that maintain the temperature at a set point. You have numerous options to choose from a variety of thermostats, which may leave you confused.

Here are some points that you can consider while choosing the right thermostat for your furnace.

How to choose the right thermostat for your furnace?

1. Know your heating system

The first and foremost thing you must do is to check what kind of heating system you are using at your home. Basically heating furnaces are of two types: one, which is common is the single stage heating system and the other one is multi stage heating system.  How to know which one you have at your home? If you have single stage heating it means you have a furnace that has only one level of output. A multi stage heating system has a primary heating system like a furnace and a secondary heating system like a solar panel which acts as an emergency heat setting system.

Also, if your house has an older construction you are likely to use baseboard heaters or furnaces that work at line voltage of 120V or 220V.

2. Study about the various thermostats available in market.

Now days, the market is flooded with variety of thermostats. Knowing your heating system helps in deciding which kind of thermostat will suit you the best. Thermostats now come with clear labels suggesting with which system they work best. Some of the commonly found labels include:

  • Works with Single stage heat or cool: This label indicates that the thermostat can be used if you have a single stage heating and cooling system.
  • Works with 2 Stage or multi-stage heat or cool: This means that the thermostat can be used if you have a multi-stage heating or cooling system.
  • Works with 24mV: This thermostat is mostly used for fire-place or wall furnace
  • Zoned HVAC: If your Heating and/or cooling is individually controlled in different areas by the same HVAC system, then the thermostat with this label is to be used. 

3. Choose the best model that fits your needs.

From manual to programmable, there are variety of thermostats in different shapes and sizes available in the market. Manual thermostats work with mercury relay switch and are the most economical one. The programmable thermostats on the other hand, is quite heavy on the pocket as it offers many functions and claims to have the best efficiency in cutting down the energy usage.

Here in this article, we have picked up a few thermostat models and reviewed them. This will guide you in choosing the best thermostat for your furnace.

Smart Furnace Thermostats

The smart thermostats are the buzz these days, and if you have a good budget this is the option. They are programmable, learning thermostats. They learn from your habits and program the schedule accordingly. They are the most energy efficient thermostats available.

Some of them are listed below:

Nest Learning Thermostat – 3rd Generation

Smart Furnace Thermostat by Nest

If you have a 5 wired system at your house with either 1, 2 or 3 level heating system, then this learning thermostat is best you can have. It comes with a new feature called the “far-sight” along with the “Away mode”. The “far-sight” feature senses the near/far field activities, and accordingly it switches to “Away mode” or illuminates to show you the temperature at which it is set. The “Away mode” helps in saving energy. This thermostat takes couple of days to learn your schedule and after that it programs the temperature accordingly.

The heating/cooling, humidity, away/home mode, history, set up of schedule etc can be controlled from anywhere through an application in your phone/tablet.

Ecobee4 – Alexa Enabled Thermostat

Smart Furnace Thermostat by Ecobee

This smart thermostat comes with an in-built voice service feature, so all you have to do is ask your thermostat to set a timer that suits you. Additionally, it will read you the news, turn the lights on/off and adjust the temperature whenever you ask for it. It is powered with far-field technology, that means you can ask for the services you need from the thermostat from across the room too. It claims to save up to 23% on heating and cooling since it can work with your local weather conditions in real time when connected to internet. You can check and control the temperature of the thermostat from anywhere using application in your android devices. Installation is fast and easy as it gives a step by step guide to install in your phone.

Emerson Sensi Wi-Fi Thermostat

Smart Thermostat for Furnace

The Emerson sensi Wi-Fi works like a traditional thermostat which makes it convenient to use. It is a 7 day programmable thermostat that feature geo fencing for location based temperature setting. It comes with 2 AA battery needed for its operation. It addresses the issue of wide temperature swing which most of the smart thermostats have by introducing a feature called the “cycle rate setting”. Once you have downloaded the application on your phone, it will walk you through the installation process step-by-step. Compared to other smart thermostats, it is cheaper yet reliable, programmable and easily understandable.

Wi-Fi Furnace Thermostats

Wi-Fi furnace thermostats are becoming the standard equipments at homes now. They use your home Wi-Fi connection and let you remotely check and control the temperature settings. This eases the pain of programming the thermostat every time. All you need is to enter the temperature and set the timer, in the application downloaded on your mobile. The thermostat will program the schedule on its own.

Here we have listed out a few Wi-Fi thermostats with a brief review of each.

Honeywell RTH6580WF

Furnace Thermostat #WiFi

This thermostat model from honey well’s  connects your HVAC system to the rest of your home’s Wi-Fi connection. Unlike other thermostats, this one needs a C or common (return) wire to work. Also, it needs to be powered from 24V ac. In case of power outage, the thermostat will resume where it let off after the power resumes. The coolest feature it has is that it comes with in-built voice recognition system that will lower or raise the temperature whenever it is asked to do so. Also you can remotely access to control and monitor the temperature through the application on your device.

Honeywell RCHT8610WF2006 Lyric T5 thermostat

WiFi enabled Furnace Thermostat

The Honeywell RCHT8610WF2006 lyric T6 thermostat blends easily with your lifestyle and adapt to it to schedule programs for you. If you don’t want that, you can always program your schedule yourself also. Lyric app is compatible with both android and iOS devices and helps in remotely controlling the temperature and timings. What makes this model unique is that it uses the geo fencing technology that tracks your location, and turns on whenever it senses that you are coming back home. You can use your phone to trigger this feature based on your arrival departure. When it senses that you are not at home, it will switch to “away” mode automatically.

Honeywell RTH9580WF thermostat

Honeywell RTH9580W smart thermostat offers you flexibility in scheduling the temperature settings. If you want the thermostat to be set up at home or business place, you just have to program accordingly. With an easy to read customizable colour touch-screen, this thermostat is quite convenient to use. It is compatible with 110V or higher heating systems with a common wire. It connects to your WIFI connection so that you can remotely access and control the temperature settings from literally anywhere. Unlike some other thermostats where you need to turn the dial to change the settings or schedule, this thermostat has touch screen tabs at the top of the screen that help in navigating through the settings and schedules.

Digital Programmable Furnace Thermostat

The digital programmable thermostats are the ones that let you program the schedules according to your convenience. However, they wont adapt to your habits like smart thermostats. They come with in built schedule program, which can be used also.

Here are some of our picks in this category.

Lux Products TX9100U Universal 7-Day Programmable Thermostat

Furnace Thermostat #Digital

LUX TX9100U thermostat comes with a 7 day programmable memory and blends in easily with your home. Its large lighted one touch display makes it easy to use. Instruction sheets are provided which help while programming the thermostat. You can use it even if you have a multi stage furnace. One of the unique features of the thermostat is its smart recovery that enables it to reach the set temperature at a specified programmed time. It has vacation hold option, that shuts off the thermostat for a maximum of 30 days.

Honeywell RTH6450D1009 5-1-1-Day Programmable Thermostat

This energy saving thermostat is a low voltage thermostat. IT has soft touch button surface with large backlit display, making it convenient to use. It provides precise control over the temperature, and is compatibile with both heating and cooling systems. It comes with a programmable memory that lets you program your schedule, according to your wish. Installation is easy as it comes with an instruction manual for the same.

Honeywell RTH2300B1012/E1 5-2 Day Programmable Thermostat

This thermostat comes with a 5-2 programmable memory, meaning you can program for 5 weekdays and 2 weekends separelty. It has an inbuilt schedule which you can use. However, it is not compatible with multistage systems or electric baseboard heating systems. It is mainly designed to control the gas furnace or AC. The programming can be done easily. It gives consistent comfort since it has an accurate temperature control of +/-1 degree Fahrenheit

Non- Programmable thermostat

If you are looking for a thermostat that is very basic yet digital, this is ideal for you. It is easy on pocket and very easy to use. They cannot be programmed and hence are not as energy efficient as the other programmable thermostats. You can set a temperature and it will cool down or heat your room accordingly.

Here’s a list of some non programmable thermostat and a brief review of each of them

Honeywell RTH111B1016/E1 Digital Non-Programmable Thermostat

Non Programmable Furnace Thermostat

This non programmable digital thermostat provides a very simple control over the temperature. All you have to do is select a temperature that you want your room temperature to be and adjust it whenever you wish to change it using the up/down buttons. This thermostat is compatible with all single stage heating system but it does not work with electric baseboard furnaces. It is slim and has compact design.

Honeywell TH3110D1008 Pro Non-Programmable Digital Thermostat

Furnace Thermostat #Non Programmable

This thermostat from Honeywell leaves you out of the pain of programming the schedules. Just select one temperature that you desire and you are good to go. A large backlit display is provided which is easy to read. It is cheap and worth the money. It has a precise control over the temperature of +/-1 degree Fahrenheit for constant comfort. It has slide switches which lets you choose the heat or cool mode.  It requires 2AA batteries for battery back up in case power outages.

Let’s wind up!

We have discussed some of the thermostats here to give you a general idea of what to look for your furnace. If you are looking for an energy efficient thermostat, then as already discussed investing in a smart thermostat, will save you on your energy bills in the long run. However, if you want an energy efficient thermostat but also not ready to invest high buck then going for a simple programmable thermostat would be a good option. Non-programmable thermostats are easy on pocket and also the easiest to use. Its upto you to decide which one suits your needs the best.

Hope this article helps you in making a wise decision!