search widget
Schedule Air Conditioner repair service with Air Quality Services, Inc. of Minneapolis MN. Join our comfort club for deals on our Air Conditioner repair service in Minneapolis MN Thank you Customers for allowing us to provide great Air Conditioning repair service to Minnetonka MN
Allow Air Quality Services, Inc. technicians to service AC in Minneapolis MN
 
Call us Today!   (952) 928-3838
7900 Excelsior Blvd. #750 • Hopkins, MN 55343
Heating • Air Conditioning
Follow us on Facebook for AC service repair near Minnetonka MN.
Visit our Google page for info on Air Conditioner repair service in Minneapolis MN!
Follow us on Twitter for Air Conditioning system maintenance ideas near Minneapolis MN
Subscribe to our YouTube channel for AC repair & maintenance tips in Minneapolis MN

Blower Door Tests

Blower Door Tests

Professional energy auditors use blower door tests to help determine a home's airtightness. Our Energy Saver 101 infographic explains the importance of a blower door test during a home energy audit. 

These are some reasons for establishing the proper building tightness: 

  • Reducing energy consumption due to air leakage
  • Avoiding moisture condensation problems
  • Avoiding uncomfortable drafts caused by cold air leaking in from the outdoors
  • Determining how much mechanical ventilation might be needed to provide acceptable indoor air quality.

Diagram of a blower door. The parts of the blower door are labeled as follows: exterior door frame (around the outside edge of the door), temporary covering (over the surface of the door), and adjustable frame (just inside the exterior door frame). An air pressure gauge, a small vertical rectangle with three round gauges inside, is alongside of the door. The top gauge is connected by a tube to the temporary covering, and the bottom two gauges are connected to a fan sitting at the bottom of the door. The caption reads: Diagnostic Tools. Testing the airtightness of a home using a special fan called a blower door can help to ensure that air sealing work is effective. Often, energy efficiency incentive programs, such as the DOE/EPA ENERGY STAR® Program, require a blower door test (usually performed in less than an hour) to confirm the tightness of the house.

How They Work

A blower door is a powerful fan that mounts into the frame of an exterior door. The fan pulls air out of the house, lowering the air pressure inside. The higher outside air pressure then flows in through all unsealed cracks and openings. The auditors may use a smoke pencil to detect air leaks. These tests determine the air infiltration rate of a building.

Blower doors consist of a frame and flexible panel that fit in a doorway, a variable-speed fan, a pressure gauge to measure the pressure differences inside and outside the home, and an airflow manometer and hoses for measuring airflow. 

Preparing for a Blower Door test

Take the following steps to prepare your home for a blower door Test: 

  • If you heat with wood, be sure all fires are completely out - not even coals - before the auditor arrives. Remove any ashes from open fireplaces.
  • Plan to do a walk-through of your home with the auditor. Be prepared to point out areas that you know are drafty or difficult to condition comfortably.
  • Expect the auditor to request access to all areas of your home including closets, built-in cabinets, attics, crawl spaces, and any unused rooms.
  • The auditor will need to close all exterior doors and windows, open all interior doors, and close any fireplace dampers, doors, and woodstove air inlets.
  • Expect the auditor to set controls on all atmospheric fossil fuel appliances to ensure that they do not fire during the test. The auditor should return them to the original position after the test.
  • Expect the test to take up to an hour or more, depending on the complexity of your home.

Source: U. S. Department of Energy

24 Hour Emergency Service • Call Us Today • (952) 928-3838 • or • Fill Out Our Online Form
Location
We service most AC brands and models near Minneapolis MN.
Business Address:
7900 Excelsior Blvd. #750
Hopkins, MN 55343
Contact Us
Schedule your Air Conditioning replacement in Edina MN.
Company Phone:
Phone: (952) 928-3838
We offer 24/7 emergency Air Conditioner repair service in Minneapolis MN.
Office Hours:
Monday- Friday 7:00am-5:00pm
24 Hour Emergency Service
 
Like us on facebook for more Air Conditioning repair service info in Edina MN
Visit our Google page for info on AC repair service in Edina MN!
For Air Conditioning repair in Minnetonka MN, follow us on Twitter!
Subscribe to our YouTube channel for AC repair & maintenance tips in Minneapolis MN
 
Payment Options
For AC in Minneapolis MN, we accept most major credit cards.
 
We accept cash for Cooling repair service provided in Minnetonka MN.
We accept check for Air Conditioner repair service provided in Edina MN.
 
Schedule Service
Click Here to Contact Us
Home   |   Email Us   |   Schedule Service   |   Get a Quote   |   Ask a Tech   |   Maintenance   |   Employment   |   Privacy Policy