My idea is to vent the build up of hot air that has risen to the ceiling in the hotspot rooms into the attic so that air from cooler parts of the house can move in.
Refurbish old house vented attic now heat and air consdition.
If you see dampness or frost you need better roof ventilation and some attic vents.
So why put an hvac system up in the attic at all.
Noticed one of the attic vents was not working.
Air flows in through the soffit vents and out through the roof vents.
Well mainly it s a way to save space.
Low cfm similar to a bathroom vent 300cfm and only in the hot spots basically by adding an inline ducting fan to the return ducts for the hotspot rooms.
Vents come in various styles.
Told that the 2 attic power vents are the only attic ventilation i have the house does have vented soffits every other soffit cover is vented.
Grab a flashlight and inspect your attic during the winter.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
Attic hvac systems save space.
For the best results place roof ventilation near the roof s peak and soffit vents in the eaves.
Attics and heat the condenser in your air conditioner works hard to get rid of heat and pressurize refrigerant for the return trip through your house.
Put it in an attic full of blown insulation.
One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home.