The short version: The Daikin One+ is Daikin’s flagship smart thermostat, built for bi-directional communication with Daikin HVAC equipment and expandable with a separate air quality monitor accessory. It’s sold through Daikin’s Canadian dealer network rather than retail, so independent owner reviews are scarce. This review is built on manufacturer specs and the limited independent coverage that exists, not a large body of verified buyer feedback.

A note on sourcing: This is a dealer-installed, contractor-channel product. Independent reviews are thin — what we found was largely manufacturer materials and brief tech-press coverage of the launch, not hands-on long-term reviews. Ask your installer for recent customer references before buying.

Who It’s For

The One+ is built for forced-air homes, and it delivers the most value paired with a Daikin communicating HVAC system — bi-directional communication lets the thermostat and equipment share real-time operating data for tighter control than a standard on/off signal. It also works as a standard smart thermostat on non-Daikin systems, without the deeper integration.

Design & Build and Compatibility

The One+ uses a capacitive touchscreen with over-the-air software updates. Installation and full commissioning are typically handled by a Daikin-certified dealer, especially when paired with communicating equipment. Confirm your system’s compatibility and wiring requirements with your installer before assuming full feature support.

Standout Feature: Indoor Air Quality Monitoring

The One+ can display indoor air quality data — including particulate matter and VOC readings — when paired with the separately-sold Daikin One Home Air Monitor accessory. Without it, the base thermostat doesn’t include onboard air quality sensing. If that’s the reason you’re considering this thermostat, confirm the accessory is included in your quote.

App & Ecosystem

The Daikin app supports Amazon Alexa and Google Assistant. Confirm current Apple HomeKit or Matter support directly with your installer or Daikin’s current spec sheet, since dealer-channel ecosystem support can change between model years with limited public documentation.

Price & Value

Daikin One+
Price (CAD) $300–$450 (installed pricing varies by dealer; air quality monitor sold separately)
Where sold Daikin dealer network
Subscription required No

Get an itemized quote separating the thermostat, any air quality monitor accessory, and installation/commissioning labor. Rebate eligibility for dealer-installed thermostats varies by province — confirm directly. See Smart Thermostat Rebates in Canada by Province.

Pros & Cons

Pros:
– Bi-directional communication with compatible Daikin equipment for tighter control
– Expandable indoor air quality monitoring via a separate accessory
– Alexa and Google Assistant support
– Over-the-air software updates

Cons:
– Requires a dealer visit — no retail DIY purchase path
– Air quality monitoring requires a separate accessory purchase
– Very limited independent review coverage
– Full feature set depends on Daikin communicating equipment

Daikin One+ compared against other dealer-installed manufacturer thermostats in Canada

The Recommendation

Consider the Daikin One+ if your installer is already quoting Daikin equipment and you want deeper bi-directional integration, or you specifically want expandable air quality monitoring. Ask for recent customer references, since independent reviews are thin.

Consider alternatives if you want a thermostat you can research thoroughly before buying — retail options like ecobee or Nest have far more independent Canadian owner feedback available.

Frequently Asked Questions

Does the Daikin One+ include air quality monitoring out of the box?
No. Air quality sensing requires the separately-sold Daikin One Home Air Monitor accessory.

Can I buy a Daikin One+ in Canada without a Daikin HVAC system?
It works as a standard smart thermostat on non-Daikin systems, but you lose the bi-directional communication that’s its main advantage. It’s sold through Daikin’s dealer network, not retail.

Does the Daikin One+ qualify for a Canadian utility rebate?
Check your provincial program directly. Dealer-channel thermostats aren’t always as consistently listed as retail models like ecobee.