Can I add cooling to my existing gas ducted heating?
In many homes it can. Add-on cooling fits a cooling coil at the gas heater and connects it to an outdoor unit, so one set of ducts and outlets handles your ducted heating and cooling. It needs ducts that are large enough and well enough insulated to carry cool air, a heater that suits the coil, and space at the heater for the coil.
If the ducts are undersized, damaged or poorly insulated, or the heater is near the end of its life, a ducted reverse cycle system may be the better choice. It heats and cools from one outdoor unit and replaces the gas heater. Ask the installer to explain both options for your home before you compare prices.
How long does a ducted installation take, and what happens on the day?
The installer confirms the timing for your home in the quote. It depends on the size of the system, the roof access and whether existing ducts are being reused.
The work usually covers placing the indoor unit in the roof space or under the floor, running and connecting the ducts, setting the outdoor unit on its base or brackets, cutting in the outlets and return air grille, and fitting the wall controller and any zone controls.
Before the day, ask where each outlet, the return air grille and the outdoor unit will go. Clear a path to the manhole and to the outdoor unit position.
