Day: May 13, 2012

Introduction to Manual-J

Manual-J Heating and Cooling Load Calculations Manual-J is the name for a specific protocol (often called “Heat Load Calculation” or “Cooling Load Calculation“) used to determine

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Mold is Good – Except When It’s Growing in Your House

Mold is good… except when it’s growing inside your house. Even though we live in houses made of mold food, mold food is only appetizing when moisture levels are out of balance. Since we can’t easily eliminate mold food from our houses, it becomes very important that we keep them dry.

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How to Determine Friction Rate

Friction Rate The friction rate tells us how much friction our ductwork should produce, per 100’, so that we consume the rest of our available

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