ROBERTSHAW RS10420T Thermostat | Montreal, Laval, Longueuil, South Shore & North Shore

In stock
SKU: RS10420T

At AirGreen, we are committed to offering cutting-edge heating, ventilation and air conditioning (HVAC) solutions.

24 Vlow-voltage thermostat
Wi-Fiincluded
6 yearsmanufacturer warranty
Wi-Fi includedTouch screenProgrammableVoice control
Get my installed price 514 316-2973

Quick facts

Model numberROBERSI0420T
ProgrammableYes
Wi-FiIncluded
Touch screenYes
ENERGY STARNo
Warranty6 years

Robertshaw RS10420T Pro-Series WIFI Programmable Touchscreen Wall Thermostat: A Revolution in Temperature Control

Introduction

At AirGreen, we are committed to providing cutting-edge heating, ventilation, and air conditioning (HVAC) solutions. Based in Montreal, our services extend to Laval, Longueuil, as well as the North Shore and South Shore areas. Today, we are proud to introduce the Robertshaw RS10420T Pro-Series WIFI programmable touchscreen wall thermostat, a device that combines modern design, intuitive functionality, and energy efficiency.

A Modern and Elegant Design

The RS10420T thermostat is not just a tool, but a centerpiece of your home with its 8.8-square-inch blue backlit touchscreen display. Its clear and easy-to-use interface allows every family member to manage their living comfort effortlessly. Programming this thermostat is made simple with intuitive icons for waking, leaving, returning, and sleeping, making every interaction as pleasant as it is efficient.

Advanced Features for Optimal Comfort

The RS10420T is designed for multi-stage systems, capable of managing up to 4 heating modes and 2 cooling modes. This allows precise adaptation to the specific needs of your home while optimizing energy use. WIFI programming gives you complete remote control via the Robertshaw app or even by voice through Alexa compatibility. Whether you're at the office or on vacation, adjust your HVAC system with just a few clicks.

  • Easy installation: Large terminal blocks and a universal sub-base make installation by our qualified technicians a breeze.
  • Adjustable temperature calibration: Ensure the displayed temperature is always accurate.
  • Short-cycle protection: Extend the life of your equipment by preventing frequent compressor starts.
  • Filter change reminder: Keep your air always fresh and clean.

Pre-set Energy Efficiency Program

For those looking to reduce their carbon footprint without sacrificing comfort, the RS10420T thermostat includes a pre-set program to maximize energy efficiency. This feature helps reduce energy costs while maintaining a pleasant temperature throughout the house.

Warranty and Support

With a 6-year limited warranty, Robertshaw ensures that your investment is protected. At AirGreen, we also offer expert installation and responsive after-sales service to ensure that every aspect of your experience with the RS10420T is hassle-free.

Conclusion

The Robertshaw RS10420T Pro-Series WIFI programmable touchscreen wall thermostat represents the pinnacle of home climate management. Reliable, easy to use, and aesthetically pleasing, it transforms any home into a haven of comfort and efficiency. Trust AirGreen for professional installation in the Montreal area and discover a new era of home comfort.

01 · Key facts

Key facts: ROBERTSHAW RS10420T

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

Type24 V thermostatROBERTSHAW RS10420T
Wi-FiIncludedconnection
Warranty6 yearsmanufacturer
02 · Compatible?

Is the ROBERTSHAW RS10420T 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 pumpTo confirmDepends on the number of stages: see the spec sheet below.
Dual energy (heat pump + furnace)To confirmDepends on the model: dual energy needs backup-heat control. See 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 waterTo confirmPossible in 24 V depending on the model: our technicians confirm the wiring.
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 ROBERTSHAW RS10420T 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 · Head to head

The ROBERTSHAW RS10420T or its closest sibling?

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

08 · 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.

09 · 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.
10 · Specifications

ROBERTSHAW RS10420T specifications

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

GeneralType24 V thermostat
GeneralModelROBERSI0420T
GeneralBrandRobertshaw
11 · Questions

Frequently asked questions about the ROBERTSHAW RS10420T

Short answers, no detours.

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.

What is the warranty?

6 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.