Series Signature
Variable-speed compressor with TruHeat technology, engineered to hold comfortable heat output as the temperature drops. This is what we recommend to homes that want to stay off gas as deep into the season as possible.
Products
Central heat pump
Heats in winter and cools in summer from a single unit, using your existing ductwork. It is also the system that attracts the largest rebates.
One unit for both seasons
A central heat pump moves heat rather than making it. In summer it pulls heat out of your house — exactly what an air conditioner does. In winter it runs the cycle in reverse, drawing heat from the outdoor air and bringing it inside. Even in cold weather, outside air still holds usable energy.
That is where the efficiency comes from: for every kilowatt-hour it consumes, a heat pump delivers two to three times more heat than a baseboard or an electric furnace, which convert electricity to heat one-for-one.
The real question in Quebec: deep cold
This is the question we are asked most often, and it deserves a straight answer.
A cold-climate certified heat pump keeps heating below −25 °C. Its capacity falls as the temperature drops, but it does not shut off. The job of the backup heat — an electric furnace or integrated elements — is to cover the coldest handful of days each winter, not to do the work all season.
In practice, across the West Island, a properly sized heat pump handles the bulk of your heating from autumn through spring. The backup steps in during cold snaps.
Lennox’s Signature line pushes this further with TruHeat technology, designed to maintain a higher supply-air temperature in deep cold. It is a difference you can feel: the air coming out of the registers is warm, not lukewarm.
The lines we install
We are a Lennox Premier Dealer — and the oldest Lennox dealer in Quebec. That means direct access to the full range, to parts, and to the manufacturer’s technical training.
What moves the price
A quote depends on factors nobody can guess from a distance:
- The capacity required, established by a heat-load calculation rather than square footage alone.
- The condition of your ductwork. An undersized duct system throttles a good heat pump; sometimes it has to be modified.
- The type of backup heat, and whether your electrical panel has the capacity.
- Where the outdoor unit goes: clearances, mounting, refrigerant line length.
- Applicable rebates, which come off the total.
Establishing all of that is precisely what the free evaluation is for.
At a glance
- Cooling efficiency (SEER2)
- 15 to 23 depending on model
- Heating efficiency (HSPF2)
- 8 to 10.3 depending on model
- Sound level
- from 58 dB — about the level of ordinary conversation
- Cold-weather heating
- operates below −25 °C on cold-climate certified models
- Backup heat
- required in Quebec, usually electric
- Typical service life
- 15 to 20 years with annual maintenance
The Lennox lines
Series Elite
The sweet spot of the range. Also variable-speed and highly efficient, at a noticeably more accessible price than the Signature series.
Series Merit
A simple, robust single-stage heat pump. A sound choice when budget leads, or for a secondary dwelling.
Model line-ups change from year to year. We confirm what is available at the time of your quote.
Related services
- Installation An installation plan drawn for your house, sized from a real load calculation, and a crew that leaves the place as they found it.
- Maintenance The annual visit that protects your warranty, your bill and your equipment. Maintenance plans are available, depending on the equipment covered.
- Free in-home evaluation An advisor comes out, measures, calculates your home's heat load and walks you through the options. No charge, and no decision required on the spot.
Frequently asked questions
Do heat pumps actually work at −25 °C?
Yes. Cold-climate certified models keep producing heat well below −25 °C. What changes is the output — the colder it gets, the less heat there is in the outdoor air to extract. That is exactly why backup heat is still required in Quebec. It carries a handful of days each winter, not the whole season.
Do I need ductwork?
Yes. A central heat pump distributes air through the home's duct system. If your house is heated by baseboards and has no ducts, they have to be installed — doable, but it changes the scale and cost of the project. We check this during the free evaluation.
Does it replace my air conditioner?
Completely. A heat pump is an air conditioner that can also run its cycle backwards to heat. If you need to replace an air conditioner anyway, the question is not "AC or heat pump" but "how much more for the heat pump" — and the gap is often absorbed by the rebates.
What size unit do I need?
Whatever your home's heat-load calculation says — not whatever your neighbour installed. An oversized unit short-cycles, dehumidifies poorly and wears out faster. We run the calculation on site, accounting for insulation, windows and orientation.
Our credentials
In business since 1955 RBQ licence 1136-3629-82
Let’s talk about your project
One of our advisors comes to your home, measures what needs measuring and walks you through your options — free, and with no pressure.
Monday to Friday · 8:30 a.m.–12 p.m. and 1 p.m.–5 p.m. Emergency service is available during the winter months to customers holding a maintenance contract.