Member Login
|
Newsletter Signup
|
Search Standards
|
Contact Us
{1}
##LOC[OK]##
{1}
##LOC[OK]##
##LOC[Cancel]##
{1}
##LOC[OK]##
##LOC[Cancel]##
Certification
AHRI Certification Programs
Learn About Certification
Promoting Certification
Certification Participant Profile
ENERGY STAR
Standards
HVACR Industry Standards
HVACR Industry Guidelines
Standards Process
Standards Development Organizations
Contractors & Specifiers
Directory of Certified Product Performance
HVACR Equipment/Components
HVACR Replacement Guidance
Homeowners
Federal Energy Efficiency Tax Credits
Indoor Comfort Systems
How Things Work
Improve Safety
Save Energy
Technical Definitions and Terms
Advocacy
Federal Legislative
Federal Regulatory
State Legislative
Building Codes
Global Policies
Climate Change
Resources
Statistics
Research
Global Resources
HVACR Education and Training
HVACR & Mechanical Conference
Equipment Donations
Terms and Technical Definitions
News & Events
Press Releases
Monthly Shipping Releases
AHRI in the News
Communications
Meetings and Events
Political News Links
Public Affairs Contacts
About Us
HVACR & Water Heating Products
AHRI Members
Join AHRI
Contact Us
Visit AHRI
Career Opportunities
Annual Reports
Privacy Policy
AHRI Staff
Homeowners
Federal Energy Efficiency Tax Credits
Indoor Comfort Systems
How Things Work
Improve Safety
Save Energy
Technical Definitions and Terms
Edit link
{1}
##LOC[OK]##
{1}
##LOC[OK]##
##LOC[Cancel]##
{1}
##LOC[OK]##
##LOC[Cancel]##
News & Features
News
Events
Resources
John Lanier Appointed Head of ...
The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) today announced the ...
More >
AHRI Announces New Logo and ...
The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) today debuted a ...
More >
AHRI Releases March 2013 U.S. ...
A full report of the March, 2013 monthly shipments is ...
More >
AHRI at Work
2013 JUNE 11 | The ...
More >
Meetings and Events Calendar
More >
Terms and Technical Definitions
AFUE Annualized Fuel Utilization Efficiency (AFUE) is a measure ...
More >
HVACR & Mechanical Conference
Formerly the HVACR & Mechanical Instructor Workshop ...
More >
Global Resources
AHRI is an active participant in global activities regarding policy, ...
More >
BECOME A MEMBER
AHRI membership provides your company with the latest policy initiatives, legislative and regulatory activities, industry standards and statistical reports, global opportunities, and much more.
Home
>
Homeowners
>
How Things Work
How Things Work from A - Z
A - E
F - S
U - Z
Furnaces: How They Work
Before selecting a furnace for your home it is important to understand how they work so you can make an informed decision. A
Learn More >
Geothermal Heat Pumps: How They Work
Geothermal heat pumps are similar to air-source heat pumps, but instead of using heat found in outside air, they rely on the relatively constant heat of the earth (thermal energy) to provide heating, air conditioning and, in most cases, hot water.
Learn More >
How Humidifiers Work
Air in your home that is too dry can be uncomfortable to breathe, can cause static build-up, dry itchy skin, parched throat, and can damage wood products like flooring, pianos, picture frames and cabinetry.
Learn More >
Hydronic Heating
One method for warming an indoor space is known as hydronic heating. This method of heating circulates hot water through plastic tubing, baseboards, or radiators to provide heat in an indoor space.
Learn More >
Mechanical Air Filters
Mechanical air filters (also called Media Air Filters) use filter media to remove particles from the air stream in HVAC systems.
Learn More >
Small Duct, High-Velocity Air Conditioning Systems
Small duct, high velocity (SDHV) air conditioning systems are similar to conventional split system air conditioners that consist of an outdoor condensing unit and an indoor coil unit.
Learn More >
Swamp Coolers
Evaporative coolers, often called "swamp coolers,” are cooling systems that use only water and a blower to circulate air.
Learn More >
{1}
##LOC[OK]##
{1}
##LOC[OK]##
##LOC[Cancel]##
{1}
##LOC[OK]##
##LOC[Cancel]##