Water In Floor Heating Ducts

Hvac ductwork in floor slabs.

Water in floor heating ducts.

We have an old forced air heating system with the air ducts in the ground below the slab floor. Our 1968 home in md has had water in the floor vents on and off for 20 yrs. Second damage to the heating and cooling system can occur. Sometimes the air.

Every year during the rainy season the ducts become half filled with water. There is little you can do to avoid water getting into the ducts in a flood but if your house sits where water can get in during heavy rain you should consider diverting water around the home. If you see water in any vent you should examine all of the other boots and ducts for water. Moisture can also collect in the summer if cool air passes through a duct in a room that isn t air conditioned.

I am interested in filling and sealing off all of the ducts in the slab an using only. Lowe s has baseboard registers designed to fit these openings too. Main causes for condensation occurring in your ac ducts include the temperature difference between the outside air and ac vent improperly sealed ac ducts and lack of insulation around these ducts. Water in buried heating and cooling ducts can cause serious health problems.

There are a few common reasons for water in air ducts. Each time the heating or cooling system operates the air moving through the ducts can blast millions of mold spores throughout the house. Moisture can be a sign of low duct temperature. Hvac air ducts located inside concrete slab floors invite a surprisingly broad range of building problems that fall into two broad categories.

This is ideal if the water is not pooling and can easily be cleaned by the rags. Grilles the function of a grille is to pull air from a room to return it to the heating or cooling system. Is your vent positioned in your baseboard instead of the floor. And third in extreme cases it can cause instability in the foundation and concrete floor slabs.

You will need to dig a trench to divert the water away and permanently stop the water from entering ducts. It can also form small water pools on the floor in severe cases. During the heating season unused air conditioning ducts located in unheated rooms can collect moisture. What causes condensation in hvac ducts.

This article describes heating and air conditioning ducts that have been placed in or beneath concrete floor slabs. I ran a french drain years ago. Push the pole into the air duct and allow the rags or sponges to absorb the water. The water in the ducts can initiate the growth of mold.