What heater size for my unit?

Fujitsu offers up to 4 kW for the 12,000 BTU/h, 6 kW for the 18,000, 8 kW for the 24,000, 10 kW for the 30,000, 12 kW for the 36,000 and 16 kW for the 48,000. We pick the kit based on your heating load and your electrical service.

Does LogisVert cover the electric heater kit?

No. LogisVert pays for the ENERGY STAR certified heat pump, based on its capacity at -8 °C. The program guide sets no amount for a furnace or electric elements.

Is this a dual-energy (Rate DT) system?

No. Rate DT requires a fuel backup: natural gas, oil, propane or wood pellets. A heat pump with electric backup is an all-electric system.

When do the electric elements turn on?

The Fujitsu system brings on the backup automatically when the heat pump can’t keep up. It also has an emergency heat mode. The exact setting is made at installation.

Does it need its own circuit?

Yes. Fujitsu requires a dedicated power supply for the heater kit, and some kits don’t include a breaker. Our electricians handle it.

How cold can the heat pump go?

Centauri: down to -21 °C. Centauri XLTH: down to -26 °C. In the 48,000 size, the XLTH still delivers 51,000 BTU/h at -15 °C.

Can it go horizontal, in the attic or in the basement?

The unit installs upflow, downflow (with a kit) or horizontal, left or right. For LogisVert, the indoor unit and its ducts must stay inside the insulated envelope, so not in an attic.

Can I keep my existing ductwork?

Often, yes. The 12,000 to 24,000 BTU/h sizes handle 0.08 to 0.80 in. of water column, and the 30,000 to 48,000 sizes 0.2 to 0.8 in. We check your ducts before confirming.

Can I keep my wall thermostat?

Yes, with Fujitsu’s UTY-TTRXZ1 24 V interface. It must then be the only control on the system.

Fujitsu covers parts for 5 years and the compressor for 7. With online registration within 60 days it’s 10 years, and 12 years when installed by a Fujitsu Elite contractor. Labour isn’t included in the manufacturer’s warranty.

How is a heat pump with an electric furnace different from baseboards?

The heat pump supplies the heat most of the time, and the ducts spread the air through the house. The furnace elements are only backup. With baseboards, each room heats on its own.

FUJITSU AIRSTAGE · AMUH · UTZ-EUThe FUJITSU “furnace” at AirGreenAuthorized dealer at the highest level of the AIRSTAGE Elite program.

Elite Plus

Air handler2 to 16 kW back-upR-32

Fujitsu air handler · updated October 8, 2026

FUJITSU electric furnace: the AMUH air handler and its 2 to 16 kW back-up.

What people call a Fujitsu “furnace” is the air handler of the Centauri central heat pump. A kit of electric elements slides into it: the heat pump heats first, the back-up takes over when it is no longer enough.

See the models Book my free estimate

16 kWThe largest kit, for the 48,000 unit: about 54,600 BTU/h.

13UTZ-EU kits in Fujitsu’s catalogue, from 2 to 16 kW.

$0of LogisVert for a kit or a furnace: the program pays for the heat pump.

Not a furnace: an air handler

Fujitsu sells no “furnace”. The AMUH unit blows the central heat pump’s air; the UTZ-EU kit adds electric elements for back-up.

4positions: upflow, downflow, horizontal left or right

2cabinets: 1,092 and 1,219 mm tall

1dedicated circuit for each kit

2stages on the MSB2 and MMB2 kits

AirGreen × FUJITSU AIRSTAGEAMUH air handler2 to 16 kW kitsHeat pump firstFour positionsRBQ licences 15.8, 15.10 and 16Elite Plus dealer

01 · What the Fujitsu “furnace” does

A heat pump, then a back-up.

Seven facts from Fujitsu’s brochure and sheets, Hydro-Québec’s rates and the LogisVert guide. Sources are at the bottom of the page.

AMUH

Fujitsu doesn’t sell a "furnace": it’s the AMUH air handler, with an added electric heater kit of 2 to 16 kW.

4 to 16 kW

Each size has its own kits: up to 4 kW on the 12,000 BTU/h model, up to 16 kW on the 48,000 BTU/h model.

54,600 BTU/h

The 16 kW kit gives about 54,600 BTU/h, more than the 51,000 BTU/h rating of the 48,000 heat pump at 8.3 °C.

Rate DT

A heat pump with electric backup is an all-electric system. Hydro-Québec’s Rate DT requires a fuel backup instead.

LogisVert funds the ENERGY STAR certified heat pump. The program guide sets no amount for a furnace or electric elements.

Automatic

Backup heat turns on automatically when the heat pump can’t keep up, and there is an emergency heat mode.

Dedicated circuit

Every kit needs a dedicated circuit, and some ship without a breaker.

02 · Three parts, one system

The unit, the kit, the heat pump.

What is sold as a Fujitsu “electric furnace”, part by part.

1. The AMUH unit

The fan and the coil, in a cabinet that installs upright or lying down. It blows warm or cool air into your ducts.

2. The UTZ-EU kit

Electric elements from 2 to 16 kW that slide into the unit, on a dedicated circuit.

3. The heat pump

The Centauri or Centauri XLTH outdoor unit. It heats first, and it is what LogisVert funds.

03 · The heat pump first

Then the back-up, when it gets colder.

Pick a system: what the heat pump gives at each published temperature, and what the largest kit adds. The back-up turns on automatically, according to Fujitsu.

Heat pump first, then back-up