Frequently Asked Questions

What is HVAC?

HVAC (heating, ventilation, and air conditioning) refers to technology of indoor environmental comfort. Sheet Metal Connectors, Inc. supplies the HVAC industry with the highest quality products; Rectangular Ductwork and Fittings, Spiral Pipe and Fittings, Custom Welding, Dieform Elbows, Slips and Drives, Flat Oval Spiral, Doublewall Duct, etc…

HVAC is important in the design of buildings of all sizes such as: office buildings and warehouses, retail stores, sports facilities, restaurants, community centers, clinics, hospitals, schools, universities, shopping malls and much more…

Using Sheet Metal Connectors products will help you create a safe and healthy building environment and help keep a regulated temperature, humidity, and air flow. HVAC systems use ducts installed throughout the building that supply conditioned air to a room or space.

HVAC Dictionary of Terms

Questions about PVC & PVS (Polyvinyl Coated Steel)?

A polyvinyl chloride (PVC) Ductwork is made from a plastic and vinyl combination material. The ductwork is durable, hard to damage, and long-lasting. A PVC ductwork does not rust, rot, or wear over time. For that reason, PVC piping is most commonly used in water systems, underground wiring, and sewer lines.

> Read More About our PVC Ductwork System

What is spiral pipe ductwork?

Sheet Metal Connectors, Inc. located in Minneapolis, Minnesota and Rockford, Illinois manufactures spiral pipe which is formed from a coil of metal into a rigid steel tube with a 4-ply spiral lockseam. It has a smooth interior for low friction loss with the grooved seam entirely on the outside. This Spiral Pipe (ductwork) has a resistance to crushing approximately 2 1/2 times that of longitudinal lockseam or welded pipe. Optional corrugations are available which increase the rigidity of the Spiral Pipe ductwork by approximately 300%. Spiral Pipe sections can be joined together by an E-Z Flange with Barrel Clamp, E-Z Flange Jr. with Barrel Clamp, Standard Spiral Pipe Connector, or Companion Angle Rings.

> Learn More

Where are your manufacturing facilities located?

We have two manufacturing facilities that serve the midwest, including Minneapolis, MN, Chicago, IL, and their surrounding areas. We are the biggest HVAC, Ductwork Distributor in the midwest.

Manufacturing Facilities

Minnesota Office
Sheet Metal Connectors, Inc.
5850 Main Street NE,
Minneapolis MN 55432
Locally 763-572-0000
Toll-free 1-800-328-1966
Fax 763-572-1100

Illinois Office
Sheet Metal Connectors, Inc.
5601 Sandy Hollow Road
Rockford IL 61109
Locally 815-874-4600
Toll-free 866-504-4600
Fax 815-874-9979

Can't find something?

Please call us at 1-800-328-1966 or contact us.