Heating and cooling systems installed in a home may range from central furnaces, boilers, electric baseboards to heat pumps. The most common type of heating/cooling (HVAC) system used in USA is the central furnace  – which may be singles stage or multi stage. A heat pump is used in regions with moderate climate where the summer/winter is not extreme at any time.In this article, we guide you through heat pump thermostat models ideal to control the heat pump in your home.

Only about 10% of homes in America uses electric baseboards for heating (these homes would be either old constructions or located in places where electricity is cheap).


Quick Review - Heat PumpThermostat


Heat Pump – How it functions?

A heat pump is simply a heat exchange system which can be used to heat or cool a place. Heat pumps use the outside air to heat/cool a home during winter/summer.

 A heat pump can be used for cooling, heating and dehumidifying. The working principle of a heat pump is same as that of a refrigerator. In simple words, it makes the cool place cooler and hot place hotter – by pumping out the heat from the cooler area to hotter area. Therefore, during winters when it is cool outside and warm inside, it pumps out the heat from cool outdoors to warm indoors, making your rooms cosy and warm. Similarly, during summers, when it is warm outside and cool inside, it will pump out the heat from cool indoors to warm outdoors making your place nice and even cooler.

Heat pumps use air, water or ground as a medium to pump out the heat. Accordingly they are classified as air source, water source and geothermal heat pumps. The most common model is the air source heat pump.

Compared to electric baseboards and furnaces, heat pumps offer better efficiency in terms of electricity use, as they don’t use resistance heating. Also, with new advancements, high efficiency heat pumps are available that provide better dehumidifying feature than the air conditioners.

Thermostat for Heat Pumps

A thermostat helps in regulating the room temperature by turning the heating/cooling system ON/OFF intermittently (by sensing the current room temperature with the help of sensors that comes with every thermostat). In the case of a heat pump, a thermostat switches the heat pump ON/OFF to maintain the desired room temperature constantly.

Thermostats always improve the energy efficiency of heat pumps as it regulates the system really well. A good thermostats helps to save energy and money in the long run. While choosing a thermostat, the most important fact to keep in mind is “not all thermostats are compatible with heat pumps”. You’ve to choose a thermostat that is compatible with your heat pump.

In this article, we help you choose the right thermostat for your heat pump. Let’s first see some important facts you should keep in mind while selecting a thermostat for heat pumps.

How to choose the right Heat Pump Thermostat?

The very first thing to keep in mind is not all thermostat models are compatible with a heat pump system. There are thermostat models that do not support hvac systems with a heat pump. You’ve to read the specifications very clearly before you order your thermostat.

The wiring required for a heat pump is different from other heating/cooling systems like a central furnace system. So the thermostat you’re considering should support the wiring required for a heat pump. You’ve to check with the manufacturers specifications or check the model number online to see if it supports a heat pump system.

Heat Pumps with Auxiliary or Emergency Heating

A heat pump is really an energy efficient system and works well with moderate climates. But if the climate goes to an extreme, say a really cold winter, then heat pumps will take longer than usual to heat your rooms properly. To manage such situations, some heat pumps comes with auxiliary/emergency heating option. When aux/emergency heating mode is turned ON, rooms are heated really quickly. But this option (aux heating) is not energy efficient and adds to energy expenses. However, aux heat mode is really quick and heats the rooms much faster.

If your heat pump has aux/emergency heat option, then you’ve to choose a thermostat model that supports the same. Keep in mind there are thermostat models that support a heat pump but not compatible with an aux/emergency heat system. So if you’ve a heat pump with aux heat, choose a thermostat that specifically supports heat pumps with aux heat.

Smart Thermostat or Budget Friendly Programmable Model ?

Finally, if you’ve met the most important matter of shortlisting a couple of thermostat models that support your heat pump, then its just a matter of choosing which all features you want and your budget. There are smart thermostats (like Nest, Ecobee, Honeywell Lyric, ) which comes with a full load of useful features like self learning, auto programming, wifi & controlling via mobile app, geo-fencing , voice control etc. But those features comes with a price tag as well. If your budget is low, you can go with normal programmable thermostats which are more than enough and serves the purpose of regulating temperature & heat pumps.

Let’s have a look at some of the heat pump thermostats available in market.

Smart Thermostat for Heat Pumps

#1 – Nest – 3rd Generation Smart Thermostat

 

Heat Pump Thermostat
Nest Smart Thermostat for Heat Pumps

Our first pick as the #1 choice for a heat pump thermostat is Nest 3rd Generation smart thermostat. This model supports heat pump systems and heat pumps with auxiliary/emergency heating. In the case of heat pump with auxiliary heating, this model supports upto 2 stages of heating/cooling with aux heat for heat pumps.

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Nest 3rd gen model will turn ON the aux heat system only when it is necessary (only when the outside temperature falls below the aux heat lockout temperature). By default Nest will activate the heat pump balance which then automatically determines the aux heat lockout temperature. You might already know that Nest is a self learning thermostat and it learns your living habits to program itself automatically. A nest thermostat usually takes 7 to 10 days (from the day of installation) to learn patterns and to program itself to give you maximum energy savings.

Read our full Review  – Read Nest 3rd Gen Review  – Nest 3rd Gen vs Nest E compared 

Nest E Thermostat – Nest has a budget friendly smart thermostat named Nest E – which is also compatible with heat pumps and heat pumps with aux/emergency heating. You can read review of Nest E and comparison with Nest 3rd Gen in the link given above.

If you look at the backside of Nest Thermostat, you can see labels (O/B , AUX/E) – which means this thermostat is compatible with heat pumps (O/B) and also compatible for heat pumps with aux/emergency heating (AUX/E). So a convenient way to check if a thermostat model is compatible with heat pumps is to check its wiring labels. If you see O/B – it is heat pump compatible and if you both O/B and AUX/E – it is compatible for heat pumps with aux heating.

#2 – Ecobee 4 – Smart Thermostat for Heat Pump

Heat pump smart thermostat
Ecobee 4 – Smart Thermostat for Heat Pump

Ecobee 4 is our #2 choice but this thermostat is as good as Nest 3rd Generation model by all means. Ecobee is a Canadian company making smart thermostats for North American regions and they are really good at it! Ecobee 4 is their full featured smart thermostat model and it supports Heat pumps (4H/2C – 4 stages of heating & 2 stages of  cooling) and also Heat pumps with auxiliary/emergency heating (2 stages of aux heating).

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Notes: Ecobee 4 supports accessories (that usually comes with heat pumps) like a humidifier, dehumidifier, ventilator, ERV or HRV

Ecobee 4 Highlights:

  • Builtin Amazon Alexa – Ecobee4 comes with built in Alexa which enables voice control of the device. You can also avail full feature of Alexa like read news, search the web and like more!
  • Learning Ability – learns your living habits and programs itself via machine learning. Ensures maxium energy savings.
  • Away Home Control – control the device via Internet using mobile app. Ecobee4 is also compatible with Google Assistant, Apple HomeKit, Samsung SmartThings.

Read our Full ReviewReview of Ecobee 4 Thermostat – Ecobee 4 vs Ecobee 3 Lite Comparison

Ecobee 3 Lite (Budget Model) – Just like Nest E, Ecobee also has a budget friendly smart thermostat named Ecobee 3 Lite – which is a trimmed down version (in features & build quality) of Ecobee 4. This model Ecobee 3 Lite is compatible for Heat pumps (2 stages Y1 and Y2) and also for Heat pumps with aux heating (2 stages of aux heat – W1 and W2).

Note: Ecobee 3 Lite does not have accessory terminals to control whole humidifier, dehumidifier or a ventilator.

#3 – Honeywell (RTH9585WF-1004) Smart Thermostat

Heat pump smart thermostat
Honeywell – Smart Thermostat for Heatpumps

The 3rd one in our list is a model from Honeywell, with model name RTH9585WF. This is one of the best selling model of Honeywell with smart features, WiFi control, touch screen, voice control using Amazon Alexa, long distance control via internet using mobile apps and a lot such features offered by Nest and Ecobee models. The only major drawback is its conventional box shaped design which is not appealing & contemporary! Nest & Ecobee follows sleek, round shaped, minimal design pattern for all of their models – which is definitely trendy & suits any modern interiors. 

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Note: This model is in fact an upgrade of the best selling model – Honeywell RTH9580WF. Both are still available for sale in online stores. But we believe the newer model RTH9585WF is the best choice and value for money.

Compatibility:- This model RTH9580WF works with both Heat Pumps & Heat pumps with Aux/Emergency heating. This model is compatible upto 2 stages of heating. For cooling, you can set the “cooling changeover valve” mode  – which is set by default (refer installation manual for more details).

Aux/Emergency Heat – Honeywell thermostats refer to Aux/Emergency heat as “backup heat” in its software. You’ve to connect your heat pumps Aux/E wires to W2-Aux/E terminal of this Honeywell thermostat. Backup heat mode will show up in software only if this wire is connected. If your heat pump has two separate wires labeled Aux and E, then connect them together to W2-Aux/E terminal of thermostat (RTH9580WF)

Read our full review of – Honeywell RTH9585WF – Smart WiFi Thermostat.

Highlight Features:

Essentially Smart – Almost all essential features of smart thermostat except ‘self learning’ of Ecobee & Nest. Essential features like voice control (compatible with Amazon Alexa), WiFi control, remote control using mobile apps (iOS & Anddroid versions), touchscreen, holiday scheduling, smart energy savings are available in this model.

Big Display & Touch Screen – Unlike Ecobee & Nest (which are sleek & minimal) this Honeywell model has a bigger display. This is a blessing for people who prefer bigger displays & easy readability while setting up & programming schedules. Big displays also serve well people with vision problems. The touch screen has multi colors & you can set a color that match your indoors.  Note: Touchscreen can be locked (with password) for safety as well.

Drawbacks: 

Not Self Learning – Ecobee & Nest are self learning thermostats. This means you don’t need to program them manually. They learn your habits & schedules and they program themselves a schedule that best suits your lifestyle & at the same time saves you maximum energy bills. In the case of this model (RTH9585WF) – you’ve to program the thermostat manually.

Sensi Smart Thermostat

Heat pump smart thermostat
Emerson Sensi – Smart Thermostat for Heat Pump

The next in smart thermostat category for heat pumps is the Sensi smart thermostat. This thermostat is a product from Emerson thermostats and is designed to work with your existing wires. Therefore it has an easy and quick DIY installation procedure. It does not require a common wire(c-wire) and hence is compatible with most of the heating and cooling systems.

Here’s a list of other features it posses:

  1. Choose the geo-fencing feature and your thermostat will automatically set the temperature according to the local climate.
  2. Reduce the unnecessary energy usage by creating a 7- day programming schedule.
  3. Remote control feature helps you control the temperature and time settings from your smart phones, tablets and computer.
  4. It is not compatible with electric baseboard heaters.
  5. It is compatible with almost all HVAC systems, although a c wire would be required for heat-only , cool-only and heat pump systems without aux.

WiFi Heat Pump Thermostat

All the above listed smart thermostats come with a wi-fi feature. The ones listed below are economical and pocket friendly when compared to the smart thermostats mentioned in the section above but still has the useful WiFi feature inbuilt

Honeywell RET97E5D1005/U Wi-Fi Programmable Thermostat

Heat pump thermostat with WiFi
Honeywell – Heat pump thermostat with WiFi

This thermostat from Honeywell gives you remote access to control the temperature and time.   It comes with a push button interface and can be configured to almost any scheduling environment. Some of its features have been listed below:

  1. It comes with Wi-Fi remote access so that you can use your iOS or android device to control its settings from anywhere. You can mange one or more thermostats using this feature.
  2. It comes with smart response technology that learns to pre-heat or cool your home at pre-programmed times.
  3. It is pre-programmed with schedules that aim at reducing your energy usage.
  4. It is compatible with heating and cooling and heat pumps, but does not work with heat pumps with electric baseboard heat (120-240V).

Honeywell TH6320WF1005

Honeywell: WiFi Thermostat with Amazon Alexa feature

The Honeywell TH6320WF1005 Wi-Fi FocusPRO 6000 thermostat comes with a 7-day programmable memory. It has a large, backlit display with push buttons for easy control interface. Apart from this it also has the following features:

  1. The installation process is easy thanks to its browser interface/smartphone app interface, that guides you through the installation process.
  2. You can set the settings even without a Wi-Fi, as it has all the functions of a conventional programmable thermostat.
  3. Apart from giving you remote access to the temperature settings through your iOS or Android devices, this Wi-Fithermostat sends you updates via email, when asked to do so.
  4. It requires a c-wire, hence is compatible with 3Heat/2 Cool heat pumps and 2 Heat/2 Cool conventional systems.

Touch Screen Heat Pump Thermostats with WiFi

Bosch Connected Control Wi-Fi Thermostat (Alexa-Enabled)

Heat pump thermostat with WiFi
Bosch Touchscreen Thermostat for Heat Pump

This  Wi-Fi thermostat from  Bosch, allows easy scheduling to make your home cosy and comfortable during chilly days. Like all the Wi-Fi thermostats mentioned above, this one also provides remote access (through mobile App) to control its temperature and time settings. Some other key features of this thermostat are:

  1. 5-inch colour touch-screen display.
  2. Alexa-Voice enabled, this means you can control the thermostat with your voice when you are at home.
  3. You can manage schedules of up to 4 thermostats using the BCC100 mobile app.
  4. It is compatible with Heat Pump (4 Heat, 2 Cool) or Conventional (2 Heat, 2 Cool) systems, any 1-wire internally powered humidifier or dehumidifier, and most 24 VAC HVAC systems. 

Honeywell TH9320WF5003 WiFi 9000

Heat pump thermostat with touchscreen
Honeywell – Heat pump thermostat with touchscreen

This product from Honeywell is aimed to increase your energy savings. It comes with a 7-day programmable memory that can be used to reduce your energy consumption. Also, you can change the color of its customisable touchscreen to suit your wall decors. Some other features include:

  1. Connect to an existing Wi-Fi network at your home, and remotely program the schedule over the app or browser on your device.
  2. Control the thermostat using your voice, as it is enabled with Alexa voice recognition technology.
  3. The 7 day programming is simple and selectable. This means if you are not inclined towards programming the schedule, you have the option to use this thermostat as a non programmable one.
  4. It comes with energy savings mode feature.

Emerson Sensi Touch Wi-Fi Thermostat

Heat pump thermostat with touchscreen and WiFi
Emerson Sensi: Heat pump thermostat with Touchscreen

Emerson sensi touch thermostat has been named the ‘Best Overall’ smart thermostat of 2017 by USA Today’s Reviewed.com. It has HD touch screen that displays the room temperature and has intuitive menus and back glow. It is designed for hassle free DIY installation, with step by step guide given in its app.

The other features include:

  1. Download the Sensi app on your mobile and enjoy the remote accessibility of the control features of this thermostat.
  2. It will alert you in case of extreme temperature and humidity levels in your home.
  3. It has geo fencing feature that can be used for location based temperature control.
  4. 7-Day flexible  scheduling helps to reduce the HVAC related energy consumption.
    1. It has a 7 day programmable schedule with four periods for each day.
    2. Setting the schedule is easier with its large, easy-to read backlit display.
    3. The easy install wizard guides you through each step of installation.
    4. It has compatibility with heating, cooling and heat pump systems. Heat pump systems – Up to four stages of heating and two stages of cooling (with or without auxiliary).
    5. Also compatible with gas, electric, oil systems, as well as millivolt applications.It is compatible with the gas, oil, geothermal, heat pump and radiant heat systems – up to 4 stages of heating and 2 stages of cooling.

Heat Pump Programmable Thermostat

These thermostats although programmable do not have Wi-Fi and smart learning features. If you are looking for a simple digital thermostat that has a programmable memory, this category of thermostat will suit you. Here we have listed some of the heat pump programmable thermostat:

Emerson UP310

 

 

This programmable thermostat for heat pump with auxiliary heat, gives you temperature accuracy of about 1 degree that means you have got the option to maintain the temperature of your home within one degree of where you set it. It has some other features too, like:

  1. It has a 7 day programmable schedule with four periods for each day.
  2. Setting the schedule is easier with its large, easy-to read backlit display.
  3. The easy install wizard guides you through each step of installation.
  4. It has compatibility with heating, cooling and heat pump systems. Heat pump systems – Up to four stages of heating and two stages of cooling (with or without auxiliary).
  5. Also compatible with gas, electric, oil systems, as well as millivolt applications.

 

 

Honeywell RTH6450D1009

Honeywell has a wide range of thermostats; this programmable thermostat is one of them. If you are looking for a replacement for your old Honeywell thermostat, the installation for this newer version is super easy. Apart from its easy installation here are some of its other features:

  1. Easy to set up the schedule, with customisable control for a cosy home.
  2. It automatically changes from heat to cool, depending on the program set up.
  3. It gives a precise temperature of 1 degree.
  4. It is compatible with heating and cooling system plus single stage heat pump systems

 

Honeywell RTH2300B1012

 

 

The Honeywell RTH2300B1012 heat pump thermostat is one of those thermostats with lots of features. It is 5-2 day programmable thermostat, this means that you can schedule a program for the weekdays and the weekends separately. Some other features include:

  1. You can program a schedule for four different intervals a day.
  2. It has a temperature precision of 1 degree farehenheit.
  3. The push button display interface is extremely user friendly and so is its installation.
  4. It is compatible with heating, cooling and heat pumps without auxiliary heat, but does not work with electric baseboard heat (120-240V) OR multistage HVAC systems. 

 

 

Emerson 1F83H-21PR

This heat pump thermostat from Emerson comes with a dual fuel option. This means there is no need for additional sensors. Also, it has a large backlit display which has a key lock option so you won’t accidentally reset your programmed schedule. Some other features include:

  1. It can work like a 7 day programmable thermostat as well as a non programmable thermostat, according to the mode you choose.
  2. It has 5-1-1 day programming capability; this means you can set a schedule for 5 weekdays and two different schedules for the other two days of the week.
  3. It has inbuilt advanced features such as keypad lock, temperature limits and backlight button.
  4. It is compatible with  Heat Pump (2H/1C) but not compatible with   electric baseboard heat and some other systems. 

 

 

Honeywell TH6220 

This is another product from Honeywell thermostat range. It has the largest backlit display among its kind, making it easy and clear to read the settings on the display. It is dual powered (hardwired/battery). It has other features such as:

  1. It comes with built-in instructions on how to use various features efficiently.
  2. The 5-1-1/5-2 day programming schedule is built in to reduce your energy consumption via HVAC systems.
  3. The adaptive intelligent recovery feature ensures programmed temperature is reached by programmed time.
  4.  It works well with all central heating and cooling systems including heat pumps without auxiliary heat source.
  5. It is designed to provide electronic control of 24 V ac conventional and heat pump systems or 750 mV heating systems.

Lux Products TX9600TS 

 

 

This product from LUX is a good choice if you are on a tight budget and yet want to make your home comfortable along with a reduction in u=energy usage by HVAC systems. It has a simple, white frame and a large backlit display. Ome of the other features include:

  1. It has a keypad lock feature that prevents the thermostat from unauthorized users
  2. It has a selectable periods(2 or 4) per day.
  3. You can program different schedules for the weekdays and the weekends.
  4. It is compatible with heating and cooling systems apart from systems with electric baseboard heat (120 or 240 volt) and systems with 2-cooling stages.

 Digital Non Programmable Heat Pump Thermostats

 This one category of thermostats is ideal for those who like the conventional thermostats. It does not have a programmable memory but has digital display and simple control settings.

Some of the thermostats of this kind are listed below:

Honeywell RTH3100C1002/E1

 

This non programmable thermostat is mercury free and thus the precision is quite good. Also with easy to read, green backlit digital display the control of this thermostat is convenient.You can set the temperature according to your comfort and then let the thermostat do the rest.

It will maintain the room temperature at the set value. It is dual powered (hardwired/battery). It has push button interface that is very convenient to use.This thermostat works well with Multistage Heat Pump Systems (Heat Pumps with and without Auxiliary heat source).

Honeywell TH5110D1006

 

This is another non programmable digital thermostat from Honeywell. It has a 1.5 square inches, green backlit display and push button interface.It has an easy access battery replacement door and is dual powered(Hardwired/battery powered).

It is designed provide electronic control of 24 V AC conventional and heat pump systems or 750 mV heating systems. It is compatible with 1 heat/1 cool conventional systems and heat pumps with no auxiliary.

 

Honeywell RTH5100B 1025 Deluxe Manual Thermostat

This one non programmable digital thermostat from honey well features advanced temperature monitoring that is aimed to minimize temperature swings to give you a comfortable and cosy home to live in.

The green backlit display along with the soft key push button interface makes it extremely user friendly. It is very easy to set the temperature with the up/down buttons.The set temperature is maintained even when the thermostat restarts after a power outage.It is compatible with Works on all central heating and cooling systems including heat pumps without auxiliary heat source.

These are some of thermostats that I have picked up to guide you through the process of choosing the best option when it comes to buying heat pump thermostats. As already mentioned, the first thing you should know while shopping for thermostat is the type of heating/cooling system you have at your home. Then comes in the budget and the kind of features you want. The smart thermostats are equipped with ample number of features from setting the schedule for you to even reading out the daily news for you. Most of the Wi-Fi thermostats come with remote access to the control settings. The non-programmable thermostat is the most basic type and all you have to do is set a temperature and it will maintain the temperature with precision of about 1 degree Fahrenheit.

This is all about heat pump thermostats in this article.

Thanks for reading!

 

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