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An open-concept renovation is not limited to just demolishing the walls and making the home more spacious. It also has some consequences on the HVAC system. At one end, it makes the home feel larger and changes airflow distribution. And at the other end, it makes the current ducts incompatible with the new building symmetry. The wise decision at this stage is to call a contractor and plan ductwork instead of demolishing blindly.
This blog guides PA homeowners about ductwork planning, better strategy, and duct design to ensure smoother HVAC airflow.
Before you move to demolition, understand the existing ductwork. Map the current registers, grilles, and supply vents. Understand all those HVAC and plumbing lines that are part of the interior walls being demolished. This mapping and strategy is essential to prevent surprises later on.
Most PA homeowners automatically think open renovation means a larger AC or a furnace. That is usually true, but it should be handled via proper planning, not blindly. And to ensure an accurate estimate, a Manual J load is mandatory. The contractor evaluates every part and every corner of the house, understands ductwork, and concludes which specific size of the HVAC would be the best fit for your space.
Most HVAC ducts are removed during renovation. But it doesn’t mean you have to necessarily remove every duct piece. If a branch is in good condition, preserves the conditioned air, and serves the right area, it should be kept instead of being demolished.
On the other hand, old and damaged parts, parts that lead to irrelevant areas, or those where there is some issue in size or length should be demolished and resized.
Smart planning is not just about where the cooling is focused; it is also focused on returning that air to the equipment. This complete cycle is essential to keep the air inside feeling fresh and healthy. In another case, if the indoor air fails to return to the equipment, the indoor atmosphere feels clammy, stuffy, and somewhat uncomfortable.
Duct planning doesn’t just end with successfully spreading supply and return air vents. It encompasses a wide spectrum of additional steps. Some of them are related to efficiency, some are for independent temperature control, and some do have a link to smooth performance. Here is what we recommend you consider.
Dividing the whole home into small zones allows homeowners to independently control various functional areas. Then you can independently manage the temperature of any specific room. For HVAC add-ons, it only requires a smart thermostat mounted in the space with the average temperature of that zone and dampers placed in the ductwork around that zone.
Mini-splits are a practical implementation of zonal technology. They are small, compact units with an outdoor compressor and an indoor air handler. The unit can easily be mounted on a wall and allows homeowners to manage the temperature of each zone separately, according to requirements.
If ceiling height or the attic is not naturally concealing your HVAC pipes, don’t forcefully pack them inside the box. Instead, leave them open. Let the shiny metal add a touch of sophistication and elegance in your space.
The job doesn’t complete after the registers are successfully installed. There is a much more important step ahead, and that is commissioning of the whole system. Check all ducts for balanced airflow, pressure, and overall efficiency. If the system struggles to maintain comfort or you notice hot and cold snaps or performance issues, inquire with contractors about how the load was calculated and how ductwork was verified.
Feel free to reach out to Lehigh HVAC for expert services anywhere in Pennsylvania.
