X-Pro 35,000 BTU 3 Zone Ducted Mini Split Heat Pump, 22.5 SEER2, Wifi, 9K + 9K + 18K

Some rooms cannot take a wall unit. A front room with tall windows, a heritage ceiling, a bedroom with no spare wall, a small office suite. The usual answers are a portable unit with a hose out the window or nothing at all.

Each of the three air handlers here (9,000, 9,000 and 18,000 BTU) sits above a ceiling or in a bulkhead and feeds short duct runs to grilles. Only the grilles show. A wall thermostat per zone does the controlling, and all three run from one 35,000 BTU outdoor unit.

The kit, before any of it disappears into a ceiling

Once it is installed you will never see most of this again. Three beige ducted air handlers at 9,000, 9,000 and 18,000 BTU, one 35,000 BTU outdoor unit, insulated copper for each zone and three wall thermostats, which are the only parts that stay in sight.

Counting what is in the carton

One outdoor unit, three indoor units, and three of everything that links them: a 16 ft copper line set (gas and liquid), 19 ft of communication wire per zone, plus wall sleeves, caps, screw kits, putty and tape. A remote and holder comes with each indoor unit. Three wall thermostats are in the box as well, one per zone.

January on the north side of the house

Frozen meltwater in the base pan is what kills an outdoor unit in a Canadian winter. A chassis heating element in this one keeps that pan clear. Rated limits are -25°C (-13°F) for heating and 55°C (131°F) for cooling, and output falls as it gets colder, so keep a second heat source for deep cold.

Efficiency, and what it actually buys you

A 22.5 SEER2 cooling rating and 10 HSPF2 heating rating come from the variable speed compressor, which throttles to match the load instead of cycling. The refrigerant is R454B. Steadier output is the comfort argument; less cycling is the running cost argument. It carries ETL and AHRI certification.

One 35,000 BTU outdoor unit runs all three ducted air handlers. Each zone starts, stops and holds its own temperature, so an empty room costs nothing.

A common rule of thumb is 20 to 25 BTU per square foot (Carrier publishes 25). Here, a 9,000 BTU unit suits roughly 360 to 450 sq ft and an 18,000 BTU unit suits roughly 720 to 900 sq ft. Natural Resources Canada points to CSA F280-12 for a proper load calculation.

The compressor varies its speed instead of cycling on and off. Published ratings are 22.5 SEER2 for cooling and 10 HSPF2 for heating.

A chassis electrical heater keeps the outdoor base pan clear. The manufacturer rates heating down to -25°C (-13°F) and cooling up to 55°C (131°F).

Each zone gets a 16 ft insulated copper line set and 19 ft of communication wire. That is the material most quotes list separately.

The outdoor unit runs on 208-230V 60Hz. It wants its own branch circuit, sized from the MCA and maximum breaker figures on the unit's own nameplate, with a disconnect within reach.

A wall thermostat for each zone, plus a handheld remote, the phone app, Amazon Alexa and Google Home.

The air handlers sit above a ceiling or inside a bulkhead and feed short duct runs to grilles. Only the supply and return grilles are visible in the room.

Ships from a Canadian warehouse. Free shipping on orders over $150. Some remote areas, PO boxes and surcharge regions may be excluded or charged extra.

Return within 14 days of purchase, unused, in original condition and packaging.

Covered directly by the manufacturer under their warranty terms for material and manufacturing defects.

The 18,000 BTU unit is sized for an open living and dining space, roughly 720 to 900 sq ft. The other two zones cover normal bedrooms without oversizing them.

Tall-window living rooms, heritage interiors, offices and dining rooms all look better without a unit on the wall. The handler hides in a ceiling void and only the grilles are visible.

This is a heat pump, not a cooling-only air conditioner. It carries an HSPF2 heating rating of 10 and a chassis heater for winter operation.

What we stand behind

• Ships from a Canadian warehouse, with free shipping on orders over $150
• 14 day returns on unused items in original condition and packaging
• Covered by the manufacturer's own warranty for material and manufacturing defects
• Line sets, communication wire and a controller for every zone are in the box

How much space will each indoor unit cover?

Sizing runs off the heat load of the room, not just its floor area, and Natural Resources Canada points to CSA F280-12 for the real calculation. As a rough check, 20 to 25 BTU per square foot is the usual rule of thumb. Here, a 9,000 BTU unit suits roughly 360 to 450 sq ft and an 18,000 BTU unit suits roughly 720 to 900 sq ft. Poor insulation, big west-facing windows or a 9 ft ceiling all push that figure up.

The three indoor units add up to 36,000 BTU but the outdoor unit is 35,000 BTU. Is that a mistake?

No. On any multi-zone system the indoor ratings are not meant to be added together, and sizing guides for multi-zone equipment say so plainly. The 35,000 BTU figure is what the outdoor unit can deliver at one time, and it is shared among whichever zones are calling for it. Three rooms rarely peak at the same moment, which is why this combination is offered.

How cold can it get outside before it stops heating?

The manufacturer rates low ambient heating down to -25°C (-13°F), helped by an electric heater in the outdoor chassis. Natural Resources Canada notes that air source heat pumps lose capacity and efficiency as it gets colder, with typical COPs falling from 2.0 to 5.4 at 8°C to 1.1 to 3.7 at -8°C, and that most units have a minimum operating temperature between -15°C and -25°C. Keep a backup heat source for the coldest stretches.

Can I install this myself in Canada?

Plan on a licensed installer. In Ontario, for example, the province states that by law only a certified technician may remove, discharge, handle and dispose of refrigerants, including HFCs, and that mechanical work on refrigeration equipment needs a Certificate of Qualification on top of the refrigerant certificate. Other provinces have their own halocarbon rules. The federal Code of Practice says the same thing in plainer terms: the technician doing work that could release refrigerant must hold the proper environmental certification. The 208-230V 60Hz power supply also means an electrician and a dedicated circuit.