Whether you re adding new heat runs in a basement or changing the layout of an existing hvac system you ll probably be working with round metal ductwork pipe.
Plenum hvac 2 round ducts roof.
Insulation used to externally insulate hvac ducts.
The hvac equipment has a blower that forces heated or cooled air into the supply plenum and from the plenum into the rooms through the supply duct system.
Working with round ductwork.
They are designed to be used with multiple different brands and can be customized for your ductwork needs.
These can be made from sheet metal or from covering the space between joists and studs.
We invited bob schmahl to give us a few pointers.
Oshpd 1 1r 2 3 surgical clinics 4 5 thermal acoustical lining materials shall not be installed within ducts terminal boxes sound traps and other in duct systems serving areas such as operating cesarean operating rooms delivery rooms post anesthesia care units cystoscopy cardiac catheterization labs nurseries intensive care units newborn intensive care units and airborne.
Here are the itemized costs for the most common types of ductwork and supplies needed to complete installation.
38 to 102mm insulation boards fibrous glass insulation boards are also available for application to the outside of sealed sheet metal ducts housings and plenums.
Shop for duct plenums at ferguson.
Your duct is going to leak twice as much rectangular duct constructed to seal class a transverse and longitudinal seams sealed openings for rotating shafts sealed are expected to leak 6 cfm 100 ft 2 duct surface area at 1 wg.
The heating cooling venting system can consist of round oval or rectangular ductwork which usually branch off of large plenums that connect directly to the hvac unit.
Round and flat oval spiral ducts constructed to seal class a are expected to leak 3 cfm 100 ft 2 duct surface.
L528 l558 l562 and l563 roof flooring design 2 21 in air handler unit 1 4tgb 18 36 e damper 1 cooling modular 2430 1 gaf2 series air handlers 1 m2430v1 vertical plenum heating air handler module 1 m3642v1 vertical plenum heating air handler module 1 pefy p24 p27.
Bob s been a tin bender for more than 40 years.
Sheet metal ducts must first be tightly sealed resilient fibrous glass insulation thicknesses from 11 2 to 4 in.
The extended plenum duct system see figure 2 on the next page.
Round duct systems can signifi cantly reduce the cost of labor for fabri cation and installation.
1 10 5 25 per foot insulated flexible duct 4 to 16 diameters used as branches or in radial duct attic systems 2 30 13 00 per foot round and oval sheet metal duct 3 to 8 diameters typically used for trunks in small homes and.
Lengths of round duct and manufactured fittings.