The Flow Penetrates The Vents On The Floor

Proper placement of vents.

The flow penetrates the vents on the floor.

Erol very strange as i just had a slab inspection last week with the same exact problem. These vents will facilitate cross flow ventilation below the joists. My air conditioning is blowing cold air but it directs the flow to the windshield and floor and not from the vents in the dash. I went and pulled the cover off a return vent because i was just curious as to why the return vents were installed on outside walls in the living room and viola 3 inches of standing water in both return vents in this room.

A return air venting system can be installed in one of two ways. Floor vents are typically used in homes where the furnace is in a basement or the ducts the piping from the furnace travel through an underground crawlspace. I have a 1998 chevy k1500 6 5l turbo diesel and my problem is that the a c heat vent control isn t working properly. I have checked the fuses under the dash passenger side far right next to kick panel and they are okay.

The vents wont change from floor to any other position the knob twist but no effect and the a c and recirc air buttons don t engage or light up. My ac will not blow through the vents only comes out in the floor. These vents must be enclosed to prevent air getting into the cavity of block wall construction. The heat then rises and continues to warm the rest of the room.

Doesn t waste usable space ceiling ducts don t hog existing or potential closet wall or ceiling space making an interesting or worse unsightly decoration and ceiling vents don t present the decorative dilemma. If the vents are too close together this can cause the air to slip away without impacting the room temperature. Figure 1 floor ventilation overview. Below are a few hvac vent system considerations and placement recommendations.

In geographic locations where heating needs predominate however the story changes putting floor vents in the spotlight. Often these vents can be blocked restricting the amount of ventilation being achieved. Ac only blows out into floor. Floor ducts are effective because they deliver heated air at floor level.

Since the goal of return vents is to get the air back to your heating and cooling units height can be flexible. It blows cold air though. Either every room with a supply register will also have a return air vent or there can be centrally located return vents on each floor of your home. This is a discussion on ac only blows out into floor within the external engine forums part of the lsx technical help section category.

Based upon your geographic location will heating or cooling needs prevail. I have spent 2 full days trying to fix it myself but with no look. In the natural pattern of air flow cool air sinks and hot air rises so best practices must consider the primary role of your system.