Ducted Heating Systems

A ducted heating system in a finished open-plan kitchen and living room in Otago, with the ceiling diffusers barely visible

Comfort, control and convenience for the entire home

Ducted heating systems are the ultimate form of heat pump powered convection heating. They deliver a comfortable even energy efficient temperature throughout the house rather than heating / cooling a single room or area like a traditional wall-mounted heat pump.

Four rooms in a home, each labelled with its own temperature set through ducted zone control

Heat the house not a room

As the name suggests, ducted systems transfer heated or cooled air through a network of ducting placed in the ceiling or floor cavity of the house. The air then enters the home through discrete ceiling or floor mounted vents. Apart from the vents the bulk of the system is hidden out of sight requiring no floor or wall space.

Ducted Systems allow the home to be divided into zones, typically aligning with rooms which can be individually controlled.

Insulated ducting run through the subfloor of a Dunedin home for a ducted heating system

What installing a ducted system involves

Almost all of a ducted system is hidden. The ductwork runs through the roof space or under the floor, insulated and sized so that every room gets the air it needs, and the only parts you ever see are the floor grilles or ceiling diffusers, the wall controller, and the outdoor unit.

In a new build we set the duct runs out with the builder before the linings go on. That is both the cheapest time to do it and the point at which we can get the shortest, straightest runs, which is what makes a system quiet and efficient for the twenty years after we leave.

In an existing home it depends on what the house will give us. A decent roof space or an accessible subfloor makes it straightforward. A two storey house, a flat skillion roof or a concrete floor makes it harder, and on some houses the honest answer is that radiators or a multi head system will do a better job for the money. We will tell you which it is before you spend anything.

The part that gets overlooked is the return air path. Air pushed into the rooms has to find its way back to the indoor unit, and a system that cannot breathe out is as compromised as one that cannot breathe in. We design the return in from the start, and it is the first thing we look at when we are called to a ducted system that has never worked properly.

A cast metal floor grille set into a timber floor, the visible part of a ducted heating system in a Dunedin home

Advantages of Ducted Heating Systems

  • Energy Efficiency Heat pumps can be up to 400% efficient, producing $4 of heat for every $1 spent.
  • Zoned Heating Individual room temperatures can be controlled, directing heat only to the areas that need it.
  • Precise Control Set a temperature and a schedule for every room from one wall panel.
  • Zero Footprint Ducted systems are virtually invisible, requiring no wall or floor space.
  • Silent Operation Our ducted systems operate quietly.
  • Improved Air Quality Optional air filtering is available, benefiting asthma and allergy sufferers.
  • Low Maintenance We partner with reputable brands to ensure reliability and minimal upkeep.
  • Retrofit-Friendly Ducted systems can be installed in both existing and new homes, making them ideal for renovations.
A cutaway diagram of a house showing a different temperature set in each room with ZoneIQ ducted zone control

Room-by-room control with ZoneIQ

A ducted system warms the whole house. Zone control decides which parts of it actually get the air.

We fit Mitsubishi Electric's ZoneIQ, sold alongside their ducted range as Comfort Master. A motorised damper sits in the ductwork at each zone and opens or closes to send air where it is wanted. Every zone has its own temperature sensor and its own schedule, so the bedrooms can come up to temperature before the alarm goes off while the living areas hold their warmth into the evening, and the guest room nobody is using simply stays shut.

You run it from a wall panel - one screen, a temperature for each room.

One thing to be clear about: every zone can sit at its own temperature, but the system is either heating or cooling, not both at the same time.

Zone control is worth building in from the start on any home where rooms are used at different times of the day. On a smaller house where everything gets heated together anyway, it is not worth it, and we will say so.

Ready to transform your home with efficient ducted heating?

At Warm and Cool, we specialize in advanced heat pump-powered ducted systems that provide even, energy-efficient temperatures throughout your home. Unlike traditional systems, our ducted heating delivers comfort across multiple zones, ensuring that every room is just the way you like it.

Our expert consultants will assess your home’s layout and energy needs to recommend the ideal system for maximum efficiency and comfort. With options for smartphone control, programmable settings, and low maintenance, we make it easy to enjoy a cozy home year-round.

Contact us today to explore how our ducted heating solutions can enhance your living space!

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