When.com Web Search

  1. Ads

    related to: average hvac diagnostic fee

Search results

  1. Results From The WOW.Com Content Network
  2. Portland Energy Conservation - Wikipedia

    en.wikipedia.org/wiki/Portland_Energy_Conservation

    The program trains HVAC contractors to offer no-cost diagnostic tune-ups to utility customers’ HVAC systems. [13] Increasing the efficiency of HVAC equipment saves energy from what is typically a home or commercial building's largest energy consumer. [14] It also increases equipment life and reduces the building's environmental impact.

  3. House Energy Rating - Wikipedia

    en.wikipedia.org/wiki/House_energy_rating

    Energy use/Cost prediction HERS generate energy use and cost predictions for specific end uses like space heating/cooling, hot water and for whole house. These outputs are obtained in absolute measures and unlike to score rating these outputs can be used to compare houses like that of miles-per-gallon ratings are used to compare the cars.

  4. Heating degree day - Wikipedia

    en.wikipedia.org/wiki/Heating_degree_day

    Heating degree day (HDD) is a measurement designed to quantify the demand for energy needed to heat a building. HDD is derived from measurements of outside air temperature. The estimated average heating energy requirements for a given building at a specific location are considered to be directly proportional to the number of HDD at that location.

  5. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    [2] [3] Air conditioning is a member of a family of systems and techniques that provide heating, ventilation, and air conditioning (HVAC). [4] Heat pumps are similar in many ways to air conditioners, but use a reversing valve to allow them both to heat and to cool an enclosed space. [5]

  6. Seasonal energy efficiency ratio - Wikipedia

    en.wikipedia.org/wiki/Seasonal_energy_efficiency...

    In the United States, the efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER) which is defined by the Air Conditioning, Heating, and Refrigeration Institute, a trade association, in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [1]

  7. Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.