How To Use a Duct Blaster

Like yours, millions of American homes are filled with forced-air ductwork.  If those ducts begin to leak, energy is inevitably wasted.  Why?  Leaky ducts dramatically increase the required energy for cooling and heating.  If you have unconditioned areas like crawlspaces and attics, sending conditioned air there can turn out to be more expensive, especially when your supply ducts leak.  Your problem aggravates when your leaky return ducts start drawing unconditioned air straight into your duct system.

  • If you wish to estimate the amount of energy being wasted from the duct leaks, learn about duct leakage measurements.  It is also helpful in letting your diagnose the nature or origin of your duct leakage problem.  It can even allow you to assess the overall quality of your duct system installation.
  • Among those duct leakage measurement tools that are currently available in the market, Duct Blaster is one of the highly preferred brands by energy professionals.  It can aid you in diagnosing your duct system.  It can tell you if your duct system is still energy-efficient or if it is already leaking.
  • Here are some references on how you can use a duct blaster.  Learning them can help you save energy.  Read on:
  • Basic details.  A Duct Blaster has a calibrated fan that can blow air up to 1,500 cubic feet per minute.  It also has a pressure tap and a flexible ducting that you can conveniently hook-up into your duct system.  It can precisely determine the duct leakage rate, from 20 to 1,500 cubic feet per minute.  The whole unit weighs not more than 10 pounds.  In no time, it can let you evaluate the condition of your current ductwork installation.
  • Installation procedures.  Only an energy professional is authorized to conduct a duct leakage test.  You have to contract him.  He has to connect a Duct Blaster through your duct systems’ central return grille or air handler.  He has to temporarily seal all the other supply registers and return grilles.  He has to turn on the Duct Blaster fan in order to increase the airflow.  He has to wait until your duct system becomes pressurized.  The test pressure is typically set at 25 Pascals.  He has to measure the duct leakage rate using the pressure gauge and the airflow.  He can also inject a theatrical fog into your duct system.  That should allow him to pin point the exact position of the leaks.
  • Costs and benefits.  A Duct Blaster is a one-piece equipment that ensures accurate diagnostic procedure for your duct system.  Aside from being simple, it is also quite inexpensive.  It passed the standards set by ASTM (152-P, E779-87, and CGSB-149.10-M86). Because of that, it can allow you to precisely measure even the low flows.

It is practical to use a Duct Blaster before installing the drywall in your new home.  It can make duct sealing a lot easier to accomplish.  Studies reveal that by fixing the leakage on your duct system, you can readily save 25% on your energy costs.


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