Adding living space changes more than the square footage of a home. A rear extension, second-storey addition, converted garage, or new family room can change the heating and cooling load, airflow requirements, and practical installation routes.
Central HVAC zoning can help when different parts of a larger home have genuinely different heating and cooling needs, but zoning is more than installing a second thermostat. A properly planned system coordinates thermostats, motorized dampers, equipment operation, and airflow.
Installing a new central heat pump does not automatically correct problems inside old ductwork. If supply ducts, return ducts, or plenums are leaking, part of the air the new system produces may never reach the rooms where it is supposed to go.
The best time to plan heating and cooling for a finished basement is before the drywall and ceiling are closed. Supply ducts, return air, refrigerant lines, condensate drainage, electrical wiring, and indoor-unit placement are much easier to coordinate while the structure is still accessible.
If a Lachine home has received new windows, better insulation, or significant air sealing since the existing HVAC system was installed, the old equipment size should not automatically be copied during replacement. The square footage may be identical, but the amount of heat entering and leaving the house may have changed considerably.
Choosing between an HRV and ERV is not simply a matter of picking the more advanced ventilation unit. The right approach depends on the home's airtightness, winter humidity, central ductwork, air distribution, equipment location, drainage, and how the ventilation system will interact with the rest of the HVAC setup.
A wall-mounted heat pump installation is not only about choosing where the indoor and outdoor units should sit. Refrigerant lines, electrical wiring, condensate drainage, wall penetrations, and exterior covers all need a practical route between them, and planning that route before installation can make a major difference to both appearance and functionality
Installing a wall-mounted or multisplit heat pump does not automatically mean your electric baseboards should be removed. In many Lachine homes, keeping selected baseboards available can provide useful backup heat and better room-by-room comfort, especially in closed bedrooms, basements, or areas outside the heat pump’s normal airflow path.
Your home’s square footage is a useful starting point when comparing central air conditioners, but it cannot determine the correct unit size by itself. Insulation, windows, ceiling height, sun exposure, home layout, ductwork and airflow all affect how much cooling capacity a Lachine home actually needs.
Replacing a central air conditioner involves more than installing a new outdoor unit in the same location. Proper sizing, indoor coil compatibility, furnace airflow, electrical capacity, refrigerant lines, drainage, and system controls should all be checked before equipment is selected.
In August 2024, our team replaced the original central HVAC system in a home built in 2005 in Île-Perrot, Quebec. The project included a new Tempstar central heat pump, a matched furnace and a new air exchanger.
Yes, you can sometimes add a central heat pump to an existing furnace, but the furnace cannot be evaluated by itself. Its blower, indoor coil, controls, electrical supply and ductwork must all be compatible with the selected heat pump.