Central HVAC can be zoned somewhat with thermocouple-adjustable or computer-controlled baffles. If you have a consistent over-cooling of one area and under-cool

Central HVAC can be zoned somewhat with thermocouple-adjustable or computer-controlled baffles. If you have a consistent over-cooling of one area and under-cooling of another there are magnetic strips made to partially cover the registers, or registers with adjustable baffles built in.