Duct Closure For Attic Air Conditioner During Winter

In the winter the attic is very cold because the roof and gables are not insulated.

Duct closure for attic air conditioner during winter.

Iv conditioned attic and more. We would try the simple things first. Iii special trusses that create space below the unconditioned attic. You can get the air handler and ducts into conditioned space in several ways without needing a basement or crawl space.

The air is re introduced as icy drafts through lower vents. That air has a dewpoint that is higher than the inside surface temperature of the ducts. Insulated flexible pipes about 7 inches inside diameter connect from the central duct to ceiling vents in each room. Condensation problem in the ductwork in wintertime question i have a dedicated ductwork system with the air handler in unconditioned attic.

The hot or cool air is coming out from the same air ducts it depends on how high or low temperatures and the hot or cold switch lever that you set the central air condition unit will automatically switch to hot or cold as you have controlled it. He also thought it might help to run the fan on the air conditioner to circulate air through the ducts and warm up the ductwork even in winter. According to nrel researchers david roberts and jon winkler moving the ducts from a vented attic to a new location inside the conditioned space will reduce electricity used for cooling by 15 to 20 and will reduce the size of the needed air conditioning equipment by 0 5 to 1 ton. Insulating the april aire cabinet will help.

Heated air rises and is drawn through unsealed central air conditioning vents into ductwork in the cold attic. Putting foam blocks in the register boots and return duct in the winter will likely stop the condensation altogether. The vents allow the super heated air to flow out. You don t close the ac vents in winter leave them open in summer or winter.

When off the duct liner is allowed to cool below the dew point of the house air. Make sure you. Keep air moving through the duct during the coldest weather. Running the indoor blower on a fan cycler will help.

It only seems logical that closing those same vents during the winter would help keep the warm air inside. This will keep the surface of the duct above the dew point of the air in the home. Running the humidifier less will help. The heat exchanger is connected to a long duct running down the center of the attic from end to end.

I lowered soffits around room perimeters. When outside temperatures drop down below about 40 pretty much nov thru march condensation starts forming in the ducts and drips from some of the ceiling registers. Ii lowered ceilings in hallways.