As the name "Tech Talk" implies, we will present in newsletter format, subjects of a technical nature, although we also may choose subjects that are related but not technical. Every effort will be made to discuss topics in a way that is easy to understand. 

Your questions about the subject matter are welcome, as are suggestions for future topics. We encourage your participation. Feel free to comment about the effectiveness and depth of coverage of the subject matter.

Document Type	Document Name	Description	File Size
	04 - Spiral Scoop Used as a Balancing Device	Spiral Scoop Used as a Balancing Device	381.80 KB
	05 - Throw, Blow, Flow, Oh No	Air movement	522.57 KB
	06 - Noise Criteria (NC) - Part 1	Noise Criteria (NC) - Part 1	510.34 KB
	07 - Noise Criteria (NC) - Part 2	Noise Criteria (NC) - Part 2	424.33 KB
	08 - Sizing a Register or Diffuser	Sizing a Register or Diffuser	427.13 KB
	09 - Return Grille Locations	Return Grille Locations	392.53 KB
	11 - Information Required to Size B-Vent	Information Required to Size B-Vent	408.29 KB
	12 - 210 Floor Register and 265 Grille	210 Floor Register and 265 Grille	416.10 KB
	13 - Fusible-link Dampers	Fusible-link Dampers	399.25 KB
	14 - Effective Area vs Free Area	Effective Area vs Free Area	394.17 KB
	15 - Sweating of T-Bar Ceiling Diffusers	Sweating of T-Bar Ceiling Diffusers	398.27 KB
	16 - Louver Performance and How to Size Them	Louver Performance and How to Size Them	418.44 KB
	17 - T-Bar Diffusers with Molded Fiberglass Back Panels	T-Bar Diffusers with Molded Fiberglass Back Panels	751.46 KB
	19 - Alternate Sizing of the 821, 831, 92, HV Series Registers	Alternate Sizing of the 821, 831, 92, HV Series Registers	734.01 KB
	20 - Grille, Register and Diffuser Substitution	Grille, Register and Diffuser Substitution	409.56 KB
	21 - Working with Standards, Codes and Inspectors	Working with Standards, Codes and Inspectors	404.60 KB
	22 - Dimensions of a Grille, Register or Diffuser	Dimensions of a Grille, Register or Diffuser	453.09 KB
	23 - Sidewall Vent Terminations	Sidewall Vent Terminations	439.66 KB
	24 - What are the Considerations in Sizing a Return	What are the Considerations in Sizing a Return	677.38 KB
	26 - Cleaning Chimneys	Cleaning Chimneys	398.00 KB
	27 - Flexible Duct Tape and Non-metallic Clamps	Flexible Duct Tape and Non-metallic Clamps	1.31 MB
	28 - Using a Digital Airflow Meter	Using a Digital Airflow Meter	778.48 KB
	29 - Dirt Stains on Diffusers and Adjacent Ceiling Surfaces	Dirt Stains on Diffusers and Adjacent Ceiling Surfaces	582.47 KB
	30 - Finding Performance Data for Unlisted Size Registers	Finding Performance Data for Unlisted Size Registers	431.68 KB
	31 - Curved-Blade Register Discussion	Curved-Blade Register Discussion	1.02 MB
	32 - Soft-Cone Flashings for Type B Gas Vent	Soft-Cone Flashings for Type B Gas Vent	530.75 KB
	33 - Condensation in Type B Gas Vent	Condensation in Type B Gas Vent	438.44 KB
	34 - Vent Offsets	Vent Offsets	456.84 KB
	8 - Repainting Grilles, Registers and Diffusers	Repainting Grilles, Registers and Diffusers	386.91 KB
	TT-10 - Chimney Liner Applications and Limitations		405.52 KB