What is the difference between a Type 1 and a Type 2 Hood?

So to break it down as simple as possible – go with a Type 1 Hood for cooking equipment that can lead to grease and grease by-products, and go with a Type 2 Hood for other kitchen appliances and equipment that require removal of heat and moisture.

What is a Class 1 duct system?

To be identified as an official Class 1 duct, the duct and connector materials must have a flame spread rating of no greater sheet metal ductwork fabrication than 25 with no evidence of continued progressive combustion, and a smoke developed rating of no more than 50.

What is preinsulated duct?

Pre-insulated ductwork is installed in a single-fix and negates the need for the for the manual lagging process of insulating the ductwork after it has been installed. As the ductwork is comparatively lightweight and quicker to install, this can yield significant cost savings for the installer and / or contractor.

What is the difference between PIR and PUR?

PUR AND PIR INSULATION MATERIAL

PUR and PIR share the same insulating characteristics; they both are extremely efficient insulating materials. The difference lies in their behavior towards the fire. PUR has a poor fire performance, while PIR can have excellent fire behavior.

What is phenolic duct?

Phenolic is a high performing alternative duct material that helps HVAC Contractors increase the thermal and duct leakage efficiency of their systems. Using phenolic also means that there is no need for separate ductwork and separate insulation as it is a 2-in-1 solution that does the job of both.

What is Kool duct?

KoolDuct is a no fiber insulation pro duct offering excellent IAQ and energy saving benefits to the residential markets. This medium pressure ducting system is excellent for commercial applications and ideal for industrial applications because of its closed cell, smooth aluminum surface.

What is PIR duct?

PIRALU Pre-Insulated Duct System protects the surface from the spread of flames and limits the amount of heat released from the surface during a fire. A rigid polyisocyanurate (PIR) foam panel coated on both sides with embossed aluminium.

What insulation is best for ductwork?

Fiberglass silicone molding company

Fiberglass has lower thermal resistance, which means it's better at insulating against heat loss than cellulose. Cellulose also reflects more sound from space than fiberglass does because of its higher density (though both are considered good for noise reduction).

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