Wall-Mounted vs Central Heat Pump: Which One to Choose

The "wall-mounted or central" question almost always comes down to one thing: do you already have functional ductwork in your home? If the answer is no, the decision is largely made before you even compare brands or prices.

Wall-mounted (or multi-zone) heat pump

An indoor unit mounted on the wall, connected directly to an outdoor unit via a refrigerant line without going through ducts. It's the most common choice for:

• Homes without existing ductwork — electric baseboard heating, very common across Quebec's housing stock, particularly older duplexes and triplexes
• Renovations where adding ducts would be costly or structurally impossible — low ceilings, poorly positioned load-bearing walls
• Targeted heating and cooling of one or two specific rooms — a finished basement, a bedroom above a garage, a recent addition

A multi-zone system lets you connect up to eight wall units (depending on the model) to a single outdoor unit, each with its own independent temperature control — a real advantage for households where occupants have different comfort preferences.

Central heat pump

Connects to the home's existing duct network, exactly like a forced-air furnace or a traditional central air conditioner. Ideal for:

• Homes already equipped with functional ductwork — existing forced-air heating, whether gas, oil, or electric
• More uniform temperature distribution throughout the home, without pronounced hot or cold zones
• Homeowners who prefer complete visual discretion — no units visible on walls, only vents that are already there

The real financial issue: the cost of ductwork

The economic math flips entirely depending on whether ducts already exist. Installing ducts in a home that's never had them means major construction work — opening up walls and ceilings, losing livable space to duct runs — which easily pushes the project well beyond the cost of an equivalent multi-zone wall-unit system. That's why, in a market like Quebec where a large share of the housing stock is heated with electric baseboards and no ducts, wall-mounted heat pumps dominate new installations.

Quick comparison

What drives the decision beyond ductwork

Even with existing ducts, some homeowners still opt for wall units in specific rooms — a basement not connected to the main network, for example — creating a hybrid approach. Conversely, a homeowner willing to invest in adding ducts might prefer central for the aesthetics and even distribution, despite the higher cost.

Our recommendation

If you don't have ducts, a wall-mounted heat pump is almost always the more affordable and faster-to-install choice — and in most cases in Quebec, it's the only realistic option without major construction. If you already have a working forced-air system, a central heat pump plugs into it naturally and generally distributes heat more evenly throughout the home.