• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Areas Served
    • Gaithersburg, MD
    • Germantown, MD
    • Rockville, MD
    • Bethesda, MD
    • Washington DC
    • Montgomery, MD
    • Frederick, MD
    • North Bethesda, MD
    • Potomac, MD
    • Montgomery Village, MD
  • $50 Refer a Friend
  • Special Offers
    • Coupons
    • Payment Plans & Financing Options
    • Rebates
  • Resources
    • Blog
    • About
    • Useful Links
    • Helpful Videos
    • Free Guides
  • Careers
  • Contact Us

Presidential Heating & Air Conditioning

Gaithersburg HVAC Contractors

Schedule an Appointment
(301) 900-5559
  • Air Conditioning
    • Air Conditioning
    • Installation
    • Repair
    • Replacement
    • Maintenance
    • Central Air
  • Heating
    • Heating Services
    • Furnace Installation
    • Furnace Repair
    • Furnace Replacement
    • Furnace Maintenance
    • Electric Furnace
    • Gas Furnace
    • Oil Furnace
    • Thermostats
    • Smart Thermostats
    • Heat Pumps
    • Geothermal
  • Indoor Air Quality
    • Humidifiers
      • Carrier
      • Aprilaire®
      • Steam
    • Air Purifiers
      • Presidential
      • Carrier
    • UV Lights
      • Carrier
    • iWave
    • Dehumidifiers
      • Aprilaire®
    • Fresh Air Ventilators
  • Service Plans
  • Commercial
    • Service Repair & Installation
  • Search

May 18, 2015

Understanding How Your HVAC System Works

HVAC Fuel Sources

There are three common fuel sources that feed HVAC systems: electricity, natural gas, and oil. Electricity is required by all HVAC systems, and is a highly effective heating source. Oil can be used to heat water or air, but may not be the most cost-effective fuel. Natural gas is a popular energy source used to power kitchen appliances and furnaces. Currently, many homeowners are switching form oil to gas because of perceived economical and environmental benefits. Newer energy sources like geothermal and solar are on the rise for their energy-efficiency potential, though they require more money initially to use.

Air Conditioners

Air conditioners can either be connected to a network of ducts or be freestanding, and essentially remove heat from the ambient air, thus cooling it down. In a nutshell, central AC units are composed of an evaporator, a condenser, and a compressor, and use a liquid refrigerant that changes from a liquid state to a gaseous state and back to a liquid state as it cycles through each units’ major structures. Air conditioners also improve indoor air quality by using a washable or disposable filter medium that filter out mold spores, odors, free-floating viruses, dust, pet dander, and other allergens from your home’s air.

Heat Pumps and Gravity Furnaces

Heat pumps utilize electricity to move heat from one area to another. For example, during hotter months, heat pumps move heat from the relatively cooler air inside your home out to mingle with the warm air outside. Since they do not use energy to heat or cool, heat pumps are energy efficient. Gravity pumps, which have mainly been replaced by heat pumps, function on the fact that hot air rises whereas cold air sinks.

Categories: HVAC

sidebar

Blog Sidebar

Schedule Service Online
or Request a Call Back

calendar logo

Blog Categories

  • Air Conditioning
  • Air Filter
  • Air Quality
  • All
  • Heating
  • Humidity
  • HVAC
  • Uncategorized

Latest Blogs

  • HVAC Tech Tips for Keeping Cool This Summer
  • How Your HVAC System Can Help with Allergies
  • When is the Best Time to Have AC Maintenance Done?
  • Choosing the Best AC Company
  • Top Tips for Improving HVAC Efficiency

Contact Us

8000 Cessna Ave, Gaithersburg,
MD 20879

Call Us: (301) 900-5559
Text Us: (240) 224-0905

Services

  • Air Conditioning
  • Heating Services
  • Indoor Air Quality Services
  • Service Plans
  • Commercial

Quick Links

  • Areas Served
  • $50 Refer a Friend
  • Specials
  • Resources
  • Careers
  • Contact

Connect with us

Leave a Review

Social Media

FacebookYoutube
  • Copyright © 2016-2021
Website by Ocean 5
  • Air Conditioning
    ▼
    • Air Conditioning
    • Installation
    • Repair
    • Replacement
    • Maintenance
    • Central Air
  • Heating
    ▼
    • Heating Services
    • Furnace Installation
    • Furnace Repair
    • Furnace Replacement
    • Furnace Maintenance
    • Electric Furnace
    • Gas Furnace
    • Oil Furnace
    • Thermostats
    • Smart Thermostats
    • Heat Pumps
    • Geothermal
  • Indoor Air Quality
    ▼
    • Humidifiers
      ▼
      • Carrier
      • Aprilaire®
      • Steam
    • Air Purifiers
      ▼
      • Presidential
      • Carrier
    • UV Lights
      ▼
      • Carrier
    • iWave
    • Dehumidifiers
      ▼
      • Aprilaire®
    • Fresh Air Ventilators
  • Service Plans
  • Commercial
    ▼
    • Service Repair & Installation
  • Resources
    ▼
    • Blog
    • About
    • Useful Links
    • Helpful Videos
    • Free Guides
  • Contact
  • Reviews
  • Refer a Friend
  • Careers
  • Specials
  • Areas Served
    ▼
    • Gaithersburg, MD
    • Germantown, MD
    • Rockville, MD
    • Bethesda, MD
    • Washington DC
    • Montgomery, MD
    • Howard, MD
    • Frederick, MD
    • North Bethesda
    • Potomac, MD
    • Montgomery Village