Here s a report that shows why.
Full house ac unit w attic ducts.
Leaky seals in unconditioned vented attics can effectively turn an efficient 15 seer unit into a 12 meaning it s much less efficient.
This unit allows for ground level or rooftop applications.
An unconditioned attic is the worst place you can put the ducts for you air conditioner.
In it the authors argue that attic ducts kill home efficiency they say that studies show a 20 percent energy use increase for homes with attic ducted units.
The condenser in your air conditioner works hard to get rid of heat and pressurize refrigerant for the return trip through your house.
Is the ductless air conditioner.
My unit is over 16 years old which is ancient in florida.
The evaporator coil is in the air handler.
Problems in the attic.
Hvac system problems can go undetected.
Not only is the furnace and ductwork in this climate zone 4 house located in an unconditioned attic but the homeowner also is dealing with a powered attic ventilator.
Put it in an attic full of blown insulation and you re.
Ductless systems are being used as an energy efficient supplemental air conditioning unit for homes that already have central ac systems.