Honeywell Lyric T5 vs T6 Pro

[et_pb_section fb_built=”1″ _builder_version=”3.0.47″ custom_padding=”0|0px|0|0px”][et_pb_row custom_padding=”0|0px|0|0px” admin_label=”prelude” _builder_version=”3.0.47″ background_size=”initial” background_position=”top_left” background_repeat=”repeat”][et_pb_column type=”4_4″ _builder_version=”3.0.47″ parallax=”off” parallax_method=”on”][et_pb_text _builder_version=”3.0.74″ background_size=”initial” background_position=”top_left” background_repeat=”repeat”]Honeywell presents two smart thermostat models, Lyric T5 Wi-Fi and T6 Pro Wi-Fi. While essentially, they are the same, there are some major differences, which can affect a buyer’s decision. Going a little deeper into their descriptions can help you understand which one is more suitable for your needs.

Choosing a smart thermostat is always tough. This equipment is powerful and packed with features. It costs a substantial amount of money and offers a variety of options, not all of which may be necessary.


The design of both thermostats is similar. The appealing rounded square form is bound to fit into virtually any decor. The only difference between the two is the color. T6 comes in white and T5 is black. Both resemble a key on a standard keyboard. The T6 model is slightly bigger than T5. However, it weighs less.

The T6 version comes with a decorative cover plate for the thermostat. It might be a good addition for people who want to cover up the information display in their bedrooms so the light doesn’t interfere with their sleep.

Both thermostats have an easy-to-use interface. The screen lights up when you touch it and shows the current temperature in the room. You can choose either Celsius or Fahrenheit.

Here is two introduce videos for Lyric T5 and T6 from Honeywell on YouTube:
[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row custom_padding=”0|0px|0|0px” admin_label=”Design” _builder_version=”3.0.106″][et_pb_column type=”4_4″ _builder_version=”3.0.47″ parallax=”off” parallax_method=”on”][et_pb_video src=”” admin_label=”T5 Wi-Fi ThermostatVideo” _builder_version=”3.6″][/et_pb_video][et_pb_text _builder_version=”3.6″]The video  for Lyric T6 and T5 share same beginning except the last part,but if you watch careful you will find their interface are different.
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Detailed tech info comparison

Lyric T5 Pro Wi-Fi  Lyric T6 Pro Wi-Fi
Part# RCHT8610WF**** TH6320WF2003/TH6220WF2006
Size(HWD) 4.06 x 4.06 x 1.06 in 4 x 4 x 1.1 inches
Weight 12 oz 12.8 oz
HVAC compatibility

24 Vac systems;Oil,Gas,Electric Fuel Types;

Single-Stage Heating,
Single-Stage Cooling,
Multi-Stage Heating,
Multi-Stage Cooling, Aux/Emergency Heat Pump,

24 Vac systems; Gas, Oil, Electric Warm Air;
Hot water Coil; Gas, Oil, Electric Hydronic;
or Steam / Gravity Systems

TH6320WF2003 Up to 3H/2C heat pump and 2H/2C conventional
TH6220WF2006 Up to 2H/1C heat pump and 2H/2C conventional

Bulit-in Sensor External Temperature Detection External Temperature Detection
Additional Sensor N wired indoor/outdoor sensor
WiFi connection 2.4G 2.4G
IOS/Andorid App Y Y
Schedule Y Y
Home/Away(Geofencing) Y Y
Alert Y Y
Power C-wire C-wire
Standy by power(watts) 0.36 0.34
Apple Homekit Y Y
Amazon Alexa Y Y
Google Assistant Y Y
MSRP $90-149.99 $110-125

You can also check more product info on Honeywell website:

Lyric T5 RCHT8610WF

Lyric T6 TH6320WF2003 and Lyric T6 TH6220WF2006

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This is a major difference between these two thermostats for those, who prefer DIY projects. The T5 thermostat can be installed by the consumer. It comes with a detailed installation guide. However, Lyric T6 Pro Wi-Fire requires professional installation. Accordingly, the installation may take longer and involve extra costs for the HVAC technician. Both thermostats require a C-wire for installation.
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Similar Features

Both thermostats seem very similar from the first glance. The following features are virtually identical, including the same Wi-Fi (2.4 GHz) and temperature ranges.

Location based temperature control(Geofencing)

honneywell Geofencing setup

Both thermostats have excellent geofencing features allowing the unit to tell whether you are home or away. They adjust the temperature according to your location. Honeywell offers a Lyric App for excellent connection.

Connection To Home

Both thermostats allow you to connect to the unit via a mobile device and an app. You can adjust the temperature without going to another room. The thermostat control is possible even if you are in another city or country.

Smart Alerts

Lyrics App sends you push notifications about a variety of factors inside your home. For example, these alerts tell you to change the air filter or if the temperatures become extreme. They let you know when a UV bulb needs to be replaced or when the heat pump needs to be serviced.

These alerts are especially valuable when you are away. You can find out if your home needs your attention at a distance.

Virtual assistant support

Both thermostats work with Amazon Echo, Google Home, and Apple HomeKit. You don’t have to rely on your smart device and/or software preferences to choose a certain thermostat. Both offer a variety of connectivity options.

Automatic Changes From Heating To Cooling

Both thermostats use sensors to understand when the heating system should be changed to cooling and vice versa. You don’t need to adjust your HVAC system manually. This is especially useful when you are away from home on a vacation or a business trip and the temperatures outdoors suddenly change.

Smart Response

Both thermostats cool and heat your home according to your temperature preferences. You don’t need to make any manual adjustments along the way. The thermostats have an ability to learn your home’s “habitsâ€? For example, how long it takes the house to heat or cool.

Easy Scheduling

honeywell schedule setup

You can set up both thermostats to maintain different temperatures at different time of the day or on different dates,maximum 4 programmable periods per Day . Both time and weekday-based scheduling are optional. You can turn it off.  The variety of scheduling options is impressive. You can also plan for a lengthy vacation or business trip.


Lyric offers 2-year retail and 5-year limited warranty on both thermostats. Pay close attention to the warranty conditions. The 5- year warranty may depend on which type of installation method you use. I.e. personal or professional contractor.

You may want read Honeywell claim: Honeywell warranty policy

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The Key Differences Between Lyric T5 and T6 Pro

Ventilation Terminals

Lyric T5 model doesn’t support U terminals (Universal Relay) for ventilation. T6 offers an option of controlling ventilation equipment with ERV (Energy Recovery Ventilator) or HRV (Heat Recovery Ventilator).

Duel Fuel System Compatibility

In case you have a dual fuel heating system, which combines a heat pump with a gas furnace, you can’t take advantage of Lyric T5 thermostat. Meanwhile, T6 Pro Wi-Fi thermostat is compatible with the majority of dual fuel systems.

Universal Input (S terminals)

Lyric T6 Pro supports the Universal Input terminals for outdoor and indoor temperature sensors. Meanwhile, T5 doesn’t have such ability. This means you can’t install additional outdoor and indoor sensors to get information about areas in and around your home.
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These thermostats vary in price. The older T5 model is around $40 – $50 cheaper than Lyric T6 pro model, depending on the manufacturer.

Note: Some utility companies offer rebates for people, who install energy-saving thermostats. Before buying either of the models, check out which companies in your area offer such rebates. You can save up to $100 per thermostat during purchase or get a quick cashback after the installation. Both smart thermostats are Energy Star certified.

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Which One Is Better?

As you can see, these two thermostats have many similarities and just a few differences. The T6 model is more expensive, requires professional installation but offers more HVAC compatibility options and sensor possibilities. Meanwhile, the T5 thermostat is cheaper and easier to install while lacking a few innovations.

In case you are not on a tight budget, it’s a good idea to purchase the T6 model since it offers more possibilities and features. In case you are looking to save some money and don’t need a dual fuel system compatibility option, the T5 model can serve you well for many years to come.

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