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Field Notes

Gas Dryer Make-Up Air: How to Interlock a Motorized Damper So the Dryer Only Runs When It Is Open

Gas Dryer Make-Up Air: How to Interlock a Motorized Damper So the Dryer Only Runs When It Is Open

combustion airOct 02, 2026
Gas Dryer Make-Up Air: How to Interlock a Motorized Damper So the Dryer Only Runs When It Is Open

Gas Dryer Make-Up Air: How to Interlock a Motorized Damper So the Dryer Only Runs When It Is Open

combustion airOct 02, 2026

From the Counter: A Range Hood Make-Up Air Fix With Standard Hoyme Parts

ADP-0241-05AOct 02, 2026

From the Counter: Proving a Fresh Air Damper Open Before the Fan Starts

ADP-1102-TPXOct 02, 2026

Range Hood Make-Up Air Over 400 CFM: What the IRC Requires and How to Wire the Damper

ADP-1101-05AOct 02, 2026

Motorized Combustion Air Dampers Under the IFGC: What 304.10 Requires and How to Size the Opening

combustion airOct 02, 2026
Motorized Flue Damper: Why It Closes When Powered and What Happens If It Does Not Open

Motorized Flue Damper: Why It Closes When Powered and What Happens If It Does Not Open

ADP relay adaptorSep 28, 2026
What Belongs in a Motorized Damper Specification, and What Most Specs Leave Out

What Belongs in a Motorized Damper Specification, and What Most Specs Leave Out

consulting engineerSep 23, 2026
How to Spec a Zone Control Damper System: Sizing, Actuators, and Bypass

How to Spec a Zone Control Damper System: Sizing, Actuators, and Bypass

actuatorSep 17, 2026
An HRV Spent 64 Hours Defrosting in Two Weeks. NRC Measured It.

An HRV Spent 64 Hours Defrosting in Two Weeks. NRC Measured It.

air exchangerSep 11, 2026
How to Order the Right HAC Damper: Size, Voltage, End Switch, and Action

How to Order the Right HAC Damper: Size, Voltage, End Switch, and Action

damper selectionSep 04, 2026
Combustion Air vs Fresh Air vs Make-Up Air: Which Damper Does Your Job Actually Need?

Combustion Air vs Fresh Air vs Make-Up Air: Which Damper Does Your Job Actually Need?

combustion airAug 28, 2026
Make-Up Air for Exhaust Fans: How the ADP-1101-05A Interlock Works

Make-Up Air for Exhaust Fans: How the ADP-1101-05A Interlock Works

ADP-1101-05AAug 20, 2026
Make-Up Air Under OBC 2024 Section 9.32: What Ontario Contractors Need to Know

Make-Up Air Under OBC 2024 Section 9.32: What Ontario Contractors Need to Know

ADP-1101-05AAug 15, 2026
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