Metal Zinc Plenum 24X21X36 R6

The Metal Zinc 24X21X36 R6 is a 24 by 21 by 36 inch insulated plenum with R-6 insulation, for furnace and air handler connections.

The 24 by 21 inch cross section suits larger residential and light commercial equipment, where the blower moves enough air that plenum velocity becomes a design consideration in its own right.

Velocity in the plenum is worth attention on larger systems. A plenum cross section that is too small for the airflow produces high velocity, which raises static pressure, generates noise that carries into the duct system, and makes even distribution to the takeoffs more difficult. Matching the plenum to the equipment outlet, and sizing takeoffs appropriately, is what keeps velocities in a reasonable range.

The 36 inch height provides development length for air leaving the blower to spread across the cross section before reaching the branch takeoffs, which is what allows the system to be balanced.

R-6 insulation reduces thermal loss, keeps the plenum exterior above dew point in cooling operation to prevent condensation, and absorbs blower noise at the source.

Seal the equipment connection and every seam with mastic or approved tape, and support the plenum independently so its weight and that of the connected duct is not carried by the equipment cabinet.

Applications include residential and light commercial furnaces, air handlers, and fan coils.

Brand

Metal Zinc

SKU

24X21X36 R6

Category

Plenums

Weight

16.5 lbs

Dimensions

36.00" x 21.00" x 24.00"

Price

$238.00

Availability

In stock

Rating

4.7 / 5.0