HVAC

Heating, ventilation and air conditioning equipment and accessories: air cleaners and media filters, humidifiers and dehumidifiers, zone and bypass dampers, forced-air zone panels, replacement actuators, heat pumps, mini-split components, line sets, condensate pumps and refrigeration tools.

Two constraints decide most HVAC jobs before equipment choice does. Static pressure: zoning a single-stage system closes branches while the blower keeps pushing full airflow, which drives pressure up and shows as register noise or a high-limit trip — a bypass damper or a variable-speed blower relieves it. And filtration depth: a four- or five-inch media cabinet captures finer particles at a lower pressure drop than a one-inch throwaway and lasts six to twelve months, but it needs physical space at the return that many retrofits do not have.

Line sets connect a mini-split condenser to its indoor head and are sized by the manufacturer's table, with a maximum equivalent length that includes every bend. Condensate from a high-efficiency appliance is acidic and needs a pump rated for it plus neutralization, not a standard one.

Brands include Resideo, RectorSeal, DiversiTech, Fujitsu General, Bosch and Midea.