Smart Thermostat HONEYWELL T6 Pro Smart TH6220WF2006/U | Montreal, Laval, Longueuil, South Shore & North Shore

In stock
SKU: TH6220WF2006/U

The Honeywell T6 Pro Smart TH6220WF2006/U fills a very specific place in the line: that of the versatile connected thermostat, simple enough for the whole family and complete enough for most heating systems in Québec.

2H/1Cheat pump stages
Wi-Fiincluded
5 yearsmanufacturer warranty
ENERGY STARWi-Fi includedTouch screenProgrammableVoice control
Get my installed price 514 316-2973

Quick facts

Model numberTH6220WF2006/U
ProgrammableYes
Wi-FiIncluded
Touch screenYes
ENERGY STARYes
Warranty5 years

The Honeywell T6 Pro Smart TH6220WF2006/U fills a very specific place in the line: that of the versatile connected thermostat, simple enough for the whole family and complete enough for most heating systems in Québec. It controls a gas, oil or electric furnace, a hot-water coil, a hydronic system, steam or gravity heat, as well as a central heat pump. And for households already living in the Apple world, it works with Apple HomeKit.

A Wi-Fi thermostat for the widest range of systems

Many consumer smart thermostats are designed first for forced air. The T6 Pro Smart also covers hot-water installations, whether gas, oil or electric, as well as steam and gravity systems, still found in many older Montréal homes and plexes. It's a smart choice when you want to add remote control without changing your heating equipment.

On the staging side, it handles up to 2 heating stages and 1 cooling stage (2H/1C) on a heat pump, and up to 2H/2C on a conventional system. A two-stage furnace paired with a central air conditioner, or a heat pump with one stage of backup heat, is therefore well supported. Changeover between heating and cooling can be automatic or manual.

The T6 Pro Smart runs on 24 VAC, so it does not control electric baseboard heaters at 120/240 V, which require line-voltage electronic thermostats.

Scheduling and geofencing

The schedule can be set up directly on the thermostat or in the Resideo app. You can choose between 7-day, 5-2, 5-1-1, one-week or non-programmable options. Geofencing uses your phone's location to switch to away mode when you leave home and return to comfort when you come back. Contractors also have the Resideo Pro app, which makes remote support easier when you give us access.

Apple HomeKit and Amazon Alexa

The T6 Pro Smart works with Apple HomeKit and Amazon Alexa. You can ask for a temperature by voice, or include it in a scene or automation in your smart home, for example lowering the heat when you turn on “night” mode.

A clear touchscreen

The 6.89 sq in. backlit touchscreen shows the room temperature, the setpoint and the current mode. The thermostat's compact square format (103.6 x 103.6 x 28 mm) blends well with most decors, and the included cover plate hides the marks left by the old thermostat.

Optional wired sensors

Two wired sensors can complete the installation: the C7089U1006 outdoor sensor and the C7189U1005 remote indoor sensor. The indoor sensor is useful when the thermostat sits in a spot that isn't representative, like a hallway exposed to a front door. The outdoor sensor gives the thermostat the outdoor temperature.

Accuracy and setting ranges

Stated accuracy is ±0.5 °C (1 °F). The heating setpoint ranges from 4.5 to 32 °C and the cooling setpoint from 10 to 37 °C. A heating range that goes this low is handy for a house left empty in winter, a cottage or a rarely used space: the system holds a minimum temperature without heating for nothing.

Energy savings in winter

The T6 Pro Smart is ENERGY STAR certified according to Resideo. In practice, the savings come from scheduling and geofencing: lowering the setpoint by a few degrees during work hours and at night, then bringing the heat back up just before you wake up or get home. For a hot-water system, which reacts more slowly than a forced-air furnace, a well-set schedule lets you anticipate needs and avoid overheating.

Mounting on the UWP universal plate

The thermostat mounts on the UWP mounting system, standard across the Honeywell T series. The box includes the thermostat, the UWP mount, an installation adapter for an electrical box, the cover plate, screws and anchors, and the installation and user guides.

The T6 Pro Smart requires 20 to 30 VAC hardwired power with a common wire (C wire). Our technicians check the existing wiring; if there's no C wire, they add one or adapt the installation. They then configure the equipment type, stages and changeover mode, connect the thermostat to Wi-Fi and the Resideo app, and test heating and cooling with you.

Where the T6 Pro Smart fits in the line

For a quick comparison:

  1. The T6 Pro programmable without Wi-Fi offers similar logic, with buttons instead of a touchscreen and the option of battery power.
  2. The T6 Pro Smart shown here adds Wi-Fi, the touchscreen, geofencing, HomeKit and Alexa.
  3. The T10+ Pro goes further with RedLINK, wireless room sensors and humidity and ventilation management.

The T6 Pro Smart is therefore the ideal balance for anyone who wants remote control without paying for features they don't need.

Maintenance tips

Clean the screen with a soft, dry cloth. Keep the app up to date and check your schedule when the seasons change. On the system side, change the furnace filter regularly and have your heating equipment inspected every fall, before the first cold snap.

Technical specifications

  • Stages: up to 2H/1C on a heat pump; up to 2H/2C on a conventional system
  • Systems: 24 VAC gas, oil or electric warm air; hot-water coil; gas, oil or electric hydronic; steam or gravity
  • Power: 20 to 30 VAC, hardwired with C wire
  • Screen: backlit touchscreen, 6.89 sq in.
  • Connectivity: Wi-Fi; Resideo app (and Resideo Pro for contractors)
  • Compatibility: Apple HomeKit, Amazon Alexa
  • Optional sensors: C7089U1006 wired outdoor, C7189U1005 remote indoor
  • Programming: 7-day, 5-2, 5-1-1, one-week or non-programmable; geofencing
  • Changeover: automatic or manual
  • Accuracy: ±0.5 °C (1 °F); setpoints: heating 4.5 to 32 °C, cooling 10 to 37 °C
  • Dimensions: 103.6 x 103.6 x 28 mm
  • Colour: white
  • Contents: thermostat, UWP mount, installation adapter, cover plate, screws and anchors, guides
  • Certification: ENERGY STAR

AirGreen installs your T6 Pro Smart

AirGreen Inc. is a family HVAC business established for more than 15 years, holding an RBQ licence, with a showroom in Boucherville. For the sale and professional installation of the T6 Pro Smart on your furnace, hot-water system or heat pump, contact us. We serve Montréal, Laval, Longueuil, the North Shore and the South Shore.

01 · Key facts

Key facts: HONEYWELL T6 Pro Smart TH6220WF2006/U

Four things to know, then its ID card in twelve answers. “—” means the manufacturer does not publish it.

Type24 V thermostatHONEYWELL T6 Pro Smart TH6220WF2006/U
For24 VAC gas, oil or electric warm airSystems
Power20 to 30 VAC, hardwired with C wirePower supply
ConnectionWi-FiConnectivity
02 · Compatible?

Is the HONEYWELL T6 Pro Smart TH6220WF2006/U compatible with your heating?

Two steps, thirty seconds. The verdict takes your system and your wiring into account.

Full compatibility table

Heating systemVerdictWhy
Central heat pumpYesHandles heat pumps (2H/1C per the spec sheet).
Dual energy (heat pump + furnace)YesHandles heat pumps (2H/1C per the spec sheet).
Electric furnaceYes24 V control of the furnace.
Gas or oil furnaceYes24 V control of the furnace; the thermostat does not touch the fuel supply.
Steam, gravity or hot waterYesThe spec sheet lists hot water or hydronic systems.
Baseboards, convectors, radiant ceilingNoA baseboard runs on 120/240 V: it needs a line-voltage electronic thermostat.
Fan-forced heaterNoA fan-forced heater needs a line-voltage thermostat rated for fans.
Electric floor heatingNoElectric floor heating needs a floor thermostat with a probe.
Wall or ducted mini-split heat pumpNoA wall heat pump is controlled by its own brand’s controller or a compatible Wi-Fi module.
03 · Wiring

The terminals behind the thermostat

Tap an element to see what it does. A working diagram, not a substitute for the manufacturer’s installation guide.

04 · Try it

Try the HONEYWELL T6 Pro Smart TH6220WF2006/U before you buy

Raise the setpoint, change the mode: see how it responds.

05 · Your savings

How much good programming can save you

Set up your typical week. The math follows the rule published by Natural Resources Canada.

06 · Winter and rebates

Winter, Rate Flex D and rebates: what this thermostat changes

With Hydro-Québec’s Rate Flex D, electricity costs less most of the winter and more during a few peak hours. A programmable thermostat does the work for you.

07 · Room by room

The sensor decides which room counts

An interactive drawing of what this kind of control does day to day.

08 · Head to head

The HONEYWELL T6 Pro Smart TH6220WF2006/U or its closest sibling?

The most useful comparison: the model right next to it in our catalogue.

09 · The right choice

The right thermostat in three questions

If this model is not the right one for you, the page says so and shows you which one is.

10 · The system

Products that go with the HONEYWELL T6 Pro Smart TH6220WF2006/U

Parts named in its spec sheet that we sell and install.

11 · Installation

Installed and set up by our technicians, in five steps

What we do at your place, in order. The on-site estimate is free.

  1. 01InspectionEquipment, stages to control and existing wiring.
  2. 02C wireCommon wire added if the model needs it and it is missing.
  3. 03MountingWall base, terminal wiring, cover plate if needed.
  4. 04SettingsEquipment type, stages, dual energy and accessories.
  5. 05Start-upConnection, app, schedule and tests with you.
12 · Specifications

HONEYWELL T6 Pro Smart TH6220WF2006/U specifications

From the manufacturer’s sheet. Type a word: the list filters as you write.

GeneralStagesup to 2H/1C in heat pump; up to 2H/2C in conventional
GeneralSystems24 VAC gas, oil or electric warm air; hot water coil; gas, oil or electric hydronic; steam or gravity
ElectricalPower supply20 to 30 VAC, hardwired with C wire
Format and contentsDisplaybacklit touch screen, 6.89 sq. in.
ConnectivityConnectivityWi-Fi; Resideo app (and Resideo Pro for contractors)
GeneralCompatibilityApple HomeKit, Amazon Alexa
GeneralOptional sensorswired outdoor C7089U1006, remote indoor C7189U1005
GeneralProgramming7 days, 5-2, 5-1-1, one week or non-programmable; geofencing
GeneralMode changeoverautomatic or manual
GeneralAccuracy±0.5 °C (1 °F); setpoints: heating 4.5 to 32 °C, cooling 10 to 37 °C
Format and contentsDimensions103.6 x 103.6 x 28 mm
Format and contentsColourwhite
Format and contentsContentsthermostat, UWP mount, installation adapter, trim plate, screws and anchors, guides
GeneralCertificationENERGY STAR
13 · Questions

Frequently asked questions about the HONEYWELL T6 Pro Smart TH6220WF2006/U

Short answers, no detours.

What does the HONEYWELL T6 Pro Smart TH6220WF2006/U work with?

According to the manufacturer’s sheet: 24 VAC gas, oil or electric warm air; hot water coil; gas, oil or electric hydronic; steam or gravity.

Does it need a C wire?

Yes. It needs wired 24 V power with a common wire. If the wire is missing, our technicians add a conductor during installation.

Can it control electric baseboards?

No. It is a low-voltage (24 V) thermostat. 120/240 V baseboards need a line-voltage electronic thermostat.

Can it be controlled remotely?

Yes, over Wi-Fi.

Does it qualify for a rebate?

If you heat with natural gas from Énergir, an ENERGY STAR smart thermostat on Énergir’s list can qualify for $100 (up to 75% of the price). Have Énergir confirm the model before buying.

What is the warranty?

5 years, per the manufacturer’s information.

Does AirGreen install it?

Yes. We sell and install this product in Montréal, Laval, Longueuil, the South Shore and the North Shore. The on-site estimate is free.

AirGreen · Montréal, Laval, Longueuil, South Shore, North Shore

Your thermostat, installed and set up by our technicians

We check your system and wiring, install the thermostat, connect it and program it with you. One visit, one installed price.

RBQ 5645-9605-01Ventilation, refrigeration and electrical
Free estimateon site, before any purchase
Quote in 24 hinstalled price, no surprises
Bouchervilleshowroom

Sources checked on October 5, 2026.

  • Manufacturer’s spec sheet for this product (summarized in the description and specifications above)
  • Natural Resources Canada, “Keeping the Heat In”, section 9 (modified September 29, 2025)
  • Hydro-Québec, electricity rates in effect April 1, 2026; Rate Flex D and Winter Credit Option pages (consulted October 5, 2026)
  • Énergir, smart thermostat grant (consulted October 5, 2026)

Savings shown are estimates; only Hydro-Québec and Énergir confirm a rate or a rebate.