One of the common appliances found in US homes is the air-conditioner. They provide cooling during the hot summers. However, during winters when you need warm and cosy indoors, heaters are installed. This means, you need two different appliances for heating and cooling purpose. There is an alternative to all of these, the heat pump. Its versatile nature can be used for cooling, heating and dehumidifying. The working principle of a heat pump is same as that of the refrigerator. In simple words, it makes the cool place cooler and hot place hotter, by pumping out the heat from the colder area to hotter area. Therefore, during winters when it is cold outside and warm inside, it pumps out the heat from cool outdoors to warm indoors, making your place cosy and warm. Similarly, during summers, when it is warm outside and cold inside, it will pump out the heat from cool indoors to warm outdoors making your place nice and cooler.

These heat pumps use air, water or ground as a medium to pump out the heat. According to this they are classified as air source, water source and geothermal heat pumps. Out of these, most common is the air source heat pump.

Compared to electric baseboard and furnaces, these 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.

The use of thermostat with a heat pump is always recommended as it adds to its efficiency. The thermostats used for furnaces and electric heaters are completely different than those used for heat pumps. This is so because, heat pumps not only provide heating but also can be used as air conditioners and dehumidifiers.

Since thermostats add efficiency to your heat pumps and also offer a lower energy usage, choosing the right thermostat for your heat pump is always important.

Here in this article, we will help you to choose the right thermostat for your heat pump.

Let’s first look at what are some of the criteria you should have in mind while selecting a thermostat.

How to choose the right thermostat for your HEAT PUMP?

As already mentioned heat pump thermostats are a bit different from the baseboard and furnace thermostats. The difference lies in their operation. While the baseboard/furnace thermostat have to control the temperature of a heating device, the heat pump thermostats switch from heating mode to cooling mode according to the seasonal variations. This should be kept in mind while choosing a thermostat for your heat pump. Typically, all thermostats come with clear labels as to what devices they are compatible with. Look for thermostats compatible with a heat pump.

Also, there are heat pumps with auxiliary or emergency heat, like a multi level furnace. Check your heat pump if it has that feature or not. Choose thermostat accordingly, that is select a thermostat that is compatible with your kind of heat pump.

Next is choosing the models for thermostat. This completely depends on your range of budget. You have programmable and non programmable thermostats as well as manual and digital thermostats available in the market. The programmable ones are more efficient and provide cool features like auto turn off/on, wi-fi support etc. while the manual thermostats are old school ones, simple, easy to use, pocket friendly yet not as efficient as their digital counterparts.

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

 

Our first pick in this category is the third generation Nest Learning thermostat. It is beautifully designed to give it a sleek and thin look. Far-sight feature on its big and bright display lets you read the temperature or time from across the room, by lighting up the display once it detects you in the room. Other than this, the nest thermostat helps reducing the figures on your energy bill with its various other distinctive features. Some of them have been mentioned below:

1. It works with Amazon Alexa voice control,this means you can control the device with your voice.
2. This is called a smart thermostat for a reason; after a few manual adjustments for 2-3 days, it learns your habit and then programs accordingly with its auto schedule feature.  
3. It is compatible with heat pumps having an auxiliary and emergency heating System (O/B , AUX, E).
4. Nest Secure feature helps it to communicate not only with other nest devices in your home but also other smart appliances such as smart LEDs, smart dryers etc. in your home. For example, in case of an emergency your Nest thermostat can communicate with your smart LED to alert you about the same.   

#2 – Ecobee 4 – Smart Thermostat for Heat Pump

This thermostat from Ecobee is an upgraded model of Ecobee 3. Eco bee 4 comes with more smart features, making your home a bit smarter. It keeps the energy usage low when you are not at home, helps manage hot and cold conditions to reduce the overall energy usage of your home utilities.  

Here are some important features that eco bee 4 possess:

1. It comes with embedded microphones that recognise far-field voices and also it has speakers that have been engineered for clear voice and full sound.
2. It has built-in Amazon Alexa voice control using which you can ask the thermostat to read the latest news, adjust the temperature and time and many more things.
3. Even if you are away from home, you can always use your smart phone to control the thermostat. Ecobee 4 mobile app works with Apple HomeKit, Google Assistant, Samsung SmartThings etc.
4. These thermostats are compatible with heat pumps (4H/2C) and also support auxiliary heat.

How is it different from Ecobee 3?

Ecobee 4 and Ecobee 3 have almost the same features except that the latter does not support amazon alexa voice control while the former does. Also Ecobee 4 comes with a room sensor, while for Ecobee 3 you will have to buy one separately.

Honeywell Smart Thermostat

The next product we have selected is from Honeywell. This smart thermostat lets you distinctively program your device as a home or business thermostat. It comes with various control features that can be accessed by you anywhere and anytime. Here is a list of some of the important feature of this thermostat:

1. Your i-phone or android phone and even your i-pad and computer can be used to control the thermostat whenever you wish to.
2. It has a customisable and easy to read color touchscreen display.
3. It comes with in built smart response technology that learns your heating and cooling habits and programs accordingly.
4. The inbuilt indoor humidity sensor displays the room humidity on its screen.
5. Enjoy proper air-circulation that regulates your home temperature with its advanced fan control feature.
6. This thermostat is compatible with heat pumps.

Sensi Smart Thermostat

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

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

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)

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

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

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!

 

Looking for something that would cut down your energy bills? An investment in thermostats would be a wise idea. Now if you still wonder what kind of a device this is, a thermostat basically controls the temperature of a system (this could be your air conditioner, baseboard heater, heat pump, room heater etc). This device not only helps in cutting down your energy bills, it also ensures proper cooling/heating of your home appliances. However, there are different types of thermostats to serve unique functions. You have to buy the right thermostat that serves your purpose.  A little research before buying would help you choose the right thermostat model and save you a lot of extra expenses. In this article, we review line voltage thermostat models (aka line volt thermostat) which are thermostats that uses direct line voltage to function (say 110 volts). Line volt thermostats are usually used to control heating equipment like baseboard heater, room heater etc.

When we speak of thermostats, they are basically of two types, namely line voltage thermostat and low voltage thermostat.

This article helps you make better choices while you shop for line voltage thermostats.First and foremost thing you should know before you buy any device is its basic function.So what is actually a line voltage thermostat and what is its area of application?

What is Line Voltage Thermostat?

Line voltage thermostat is a type of thermostat that uses the direct line voltage(USA: 110V). This type of thermostat is used in households that have baseboard heater or electric heater. A line volt thermostat usually has thick wires ( two or four wires) coming out of its back. They are mostly installed in series with the heaters at line voltage and switch on and off the mains power to the heaters, according to temperature settings. The shortcoming for this type of thermostat is that, the thermostat may reach the set room temperature even before the heater brings the room to the set temperature, thus shutting of the heater early than desired.

The figure below shows a typical line voltage thermostat, with its wires coming out of its back.

Now, you might have a basic idea of what a line voltage thermostat is, but still got second thoughts to go for the line voltage thermostat or low voltage thermostat – right?.

Let us clear that for you, follow the bullet point nutshell explaining difference between the two.

Note:- In any case, please note that a low voltage thermostat is not suitable for appliances like base board heater, electric room heater, heat pump, radiant heater etc. You should buy a line voltage thermostat for these appliances mentioned. Keep that noted.

Differences: Line voltage and Low voltage thermostat

• Line voltage thermostat uses direct line voltage, whereas low voltage thermostat works at a lower voltage than the line voltage.
• Line voltage thermostat is used mostly for electric heaters or baseboard heaters, whereas low voltage can be used for central heating systems including furnaces, air conditioning, split heaters and boilers.
• Line voltage thermostat have thick wires whereas low voltage thermostat has multiple thin wires, as they mostly work at a voltage in the range 24V -50V.
• The low voltage thermostats are more efficient in controlling the current than the line voltage thermostat.

Coming back to the line voltage thermostats, let us have a look the different models available in the market.

Different models available in the market

The earliest model of a thermostat was possibly built by a Dutch innovator Cornelis Drebbel in 1620, to regulate the temperature of a chicken incubator. Since then many models have been built and available in the market.

You have plenty of options floating in the market to choose from. However, the line voltage thermostats models can be broadly divided into two category; one being digital and the other one being manual line thermostats.

We have reviewed some of the models available in market in both the categories that will help you decide the best option for you.

Digital Line voltage Thermostats:

Digital Line Voltage Thermostats – as their name suggests use digital temperature sensing for precise temperature control. Here you can set a temperature and this device will automatically monitor the temperature within 1 degree or less precision of your set point. In market, there are three types of digital line voltage thermostats available namely: Programmable, Non-programmable and Wi-Fi line voltage thermostats.

Some of the latest models are reviewed below.

Programmable Line Voltage Thermostats:

#1 – Honeywell – 7 Day Programmable Line Volt Thermostat

This Honeywell TL8230A1003 Line Volt thermostat, uses a 7 day programmable memory that gives you flexibility of either using the pre-set schedule program or modify the schedule as per your needs. It has a large and clear backlit display. With a temperature control precision of (+/-) 1F  and an early start feature, it promises to save an additional 10%  (Honeywell claims 20% total savings if you follow preset schedule) on heating bills and ensures that the programmed temperature is reached within time.

If you are technically equipped, the installation is quite easy, only you may find some trouble figuring out how to program your own schedule. However once up and done, this battery free, double pole (4 wire) thermostat is one of the best options you can get your hands on.

Important Specs:

• Operating voltage – 208 to 240 volts AC
• Current – 15Amps Max
• Power – 3600 Watts at 240V and 3120 Watts at 208V.

Best suited for:  Electric Baseboards, Convectors and Fan Forced Heaters (Resistive Rated Loads), Color White, Application Heating.

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#2 – Aube – Digital Programmable Line Voltage Thermostat

This thermostat model from Honeywell comes with a 7 day programmable memory and battery free back up that ensures you don’t have to reprogram your schedule in case of power outage. This thermostat adjusts heat every 15 seconds that helps in maintaining the room temperature well within +/- 1F precision, sans large temperature swings.  This single pole, 2 wired thermostat is compatible with electric baseboard, radiant ceilings convector and fan-forced heaters and promises you a hassle free installation experience. It also comes with a early start function ensuring the programmed temperature is reached by programmed time. It works with 120V, 2000W (max) and 240V, 4000W max. However one downside for this model is you cannot adjust the temperature beyond its factory set options.

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#3- King (ESP230-R )Electronic Line Voltage Programmable Thermostat

This line voltage thermostat has a programmable memory that enables you to set the temperature at different times of the day thus promising an energy cut down up to 28%. It also has a 3 minute cycle that eliminates short power bursts that are wasteful and may cause potential damage to your heaters. With two manual controls below the screen, it is easy to program and use. The programmable controls are placed safely beneath the front cover to protect it from wandering and unauthorized fingers. This Three wired, 2 pole thermostat works in the temperature range of 44-95 degrees F and has a rating of 208/240V, 22 Amperes.

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 #4 – Stelpro STE402P+W Digital 5-2 Day Programmable thermostat

The STE402P+W is one of the good options, if you are looking for a wall mounted line voltage thermostat that controls electric baseboards, fan forced wall ceiling, floor or toe-kick heaters. It comes with unique features such as total silent operation, frost free warning and off position, a lock option that would set a maximum room temperature even during manual overdrive. It works in 120V , 208 and 240V. It has schedules pre-programmed which can be accessed by simple buttons. Also, you can program it according to your needs at a maximum of 4 periods per day. This single pole, two wire thermostat has an accuracy of (+/-)  1F and a current rating of 15 Amp.

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Wi-Fi Line Voltage Thermostats 

We have seen 4 models which are Line Voltage Programmable Thermostats. Now lets see 3 advanced models which has the WiFi feature, where you can control the thermostat wireless.

Stelpro KI STZW402WB+ Line Voltage WiFi Thermostat

If you are looking for a smart line volt thermostat to use with 240V electric baseboard, then this device is for you. It pairs well with your Z-Wave systems and is easy to install. It works well with both 4 wire and 2 wire systems and offers variable heating, that heats the room only when it is needed, thus promising a cut in your energy bills. It supports upto 4000W. It does not have a built in scheduler as it is mainly intended to be used with your Z wave systems that don’t need one.

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Honeywell – E-Connect Wireless Line Volt Smart Thermostat

An intelligent thermostat, the YTL9160AR100 comes with both programmable and non programmable memory. It is an equipment interface module, meaning all the HVAC equipments are wired to a single module. It has a return air sensor, that ensures maintenance of safe indoor temperature in case of power is lost at the thermostat. Its wireless signals do not interfere with other wireless equipments at your home, thanks to the red link wireless technology used in this product. Installation is easy and when used with c7089r1013 wireless outdoor sensor, it displays the outdoor temperature and also gives a 2 month low battery warning. Works best with Fahrenheit baseboard type strip heater.

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Nuheat AC0055 – WiFi Touchscreen Dual Line Voltage Thermostat

The first Wi-fi enabled thermostat in North America, this device is specifically designed for electric floor heating systems. You can use the free Nuheat SIGNATURE smartphone app or any browser to monitor, control or program this device from anywhere. It has a super intuitive 3.5” touchscreen display that would display the useful energy saving information and weather updates. It comes with built in class A GFCI protection and works at 120 V and 240V and has a current rating of 15A.  It has an ambient sensor that is not enabled by default. It can also be used for baseboard electric heaters.

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Non- Programmable line voltage thermostat

Honeywell TL7235A Line Volt Non-Programmable Digital Thermostat

Looking for a non programmable double pole line thermostat, that can be used for your electric baseboards, convectors and fan forced heaters? Then Honeywell’s TL7235A1003 is a good option for you. It is soundproofed for silent operation and also has a on demand backlit LCD display that enables easy reading in all lighting conditions. It has electronic sensors that ensures a temperature accuracy of . It has a heating indicator to let you know whenever the heating is on. The temperature range is 40 to 86F and current rating is 15A at 240V.

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Honeywell YRLV310 Digital Non-Programmable Thermostat

The YRLV310A1026/U digital Nonprogrammable thermostat from honeywells is a two wire single pole device that is most optimal to be used with 120V,and 240V electric baseboard heating, convectors and radiant ceilings. It supports upto 3000W at 240V and is easy to use and install. It uses TRIAC switching that enables silent operation eliminated the usual clicking noise a conventional thermostat makes. It has accuracy as low as A downside to this product is the absence of backlit display, that makes reading in dark a bit tough.

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StelPro Electronic Line Voltage Non Programmable  thermostat

This device from STELPRO, is a high quality single pole, two wire digital line voltage thermostat that is quite easy to use. It controls upto 4000W at 208V , 240V or 2000W at 120V. It has a temperature range of 37 to 48 F. It comes with a frost free warning and off setting. It has a feature that enables night setback mode in which you can program a temperature setting for a desired duration, at the end of which the thermostat returns back to its regular daytime setting. This process repeats every 24Hr and does not need resetting.

Honeywell RLV312 Line Volt Digital Non-Programmable Thermostat.

The RLV3120A1005/E1 model of line voltage digital thermostat from honeywell is a non programmable device apt for electric baseboard heating. It has a straightforward installation process and includes hardware. They can run at reduced capacities and have a silent operation that is they do not produce clicking noise during switching on and off. It is rated for 1000kW at 120V and 2000W at 240V. Temperature accuracy is  and uses a TRIAC switching. Apart from the electric baseboard heaters this device is compatible with convectors and radiant ceiling applications having a minimum resistive load of 0.83A and maximum resistive load of 8.5A.

Manual Line Voltage Thermostats

Manual thermostats are the ones that are commonly referred to as old fashioned line thermostats, for the simple reason that in this digital era, this non programmable thermostats use vapor filled bimetallic strips to sense the temperature instead of an electronic sensor. However they are still in use, mainly because these are very economical and easy to use.

Here we have listed best selling models of manual line voltage thermostats available in the market.

# The most popular model:

Honeywell Manual 4 Wire Premium Baseboard/Line Volt Thermostat

This manual line thermostat from honeywells is one of the most popular models available in the market because of its various features. It is easy to install and use, anyone with basic wiring knowledge can install. It uses bi-metal temperature sensor and has a mechanical operation. A knob is provided all you need is to turn it and set the temperature you desire. These are compatibile with 120V,240V baseboard and can control upto 5280 watts. It comes with 2 pole and 4 wires.

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# The economical model:

Honeywell CT30A1005 Standard Manual Economy Thermostat

 Looking for something simple and economical that would give optimum performance and still be budget friendly? Then CT30A1005 model from Honeywell is the answer. It is easy to use and install and also this product is mercury free. It uses a bimetal temperature sensor. It has a mechanical operation but is doesnot have a “off” switch. It comes with single pole and 2 wires.

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# Manual Thermostat with premium design:

HoneyWell T498B1512 Electric Line Voltage Thermostat

This Honeywell thermostat uses mercury based thermometer and has a sleek premium design. It is compatible with electric baseboard heaters and includes positive off switch. It has no inductive resistance and is rated at 22A at 120/208/240V. You can set the temperature in the range of 40F to 80F. It comes with locking cover and knob decal that helps in recaliberation.

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So let’s conclude our review of the best selling line voltage thermostat models available in the market. These are our picks in regard to the same. It is up to you to decide what features you want in your thermostat. If you are technically comfortable and have a budget on the higher side, going for digital thermostats will be a good choice. However, if you have a budget on the lower side, manual thermostats are not only easy to use, they have a straightforward installation as well. Temperature accuracy is better in digital thermostats. Also, nowadays with the power of internet and wireless communication you can get weather updates right on your LCD display of your digital line thermostats.