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  2. Furnace (central heating) - Wikipedia

    en.wikipedia.org/wiki/Furnace_(central_heating)

    High efficiency condensing gas furnaces typically achieve between 90% and 98% AFUE. [3] A condensing gas furnace includes a sealed combustion area, combustion draft inducer and a secondary heat exchanger. The primary gain in efficiency for a condensing gas furnace, as compared to a mid-efficiency forced-air or forced-draft furnace, is the ...

  3. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    The primary energy source is selected on the basis of cost, convenience, efficiency and reliability. The energy cost of heating is one of the main costs of operating a building in a cold climate. Some central heating plants can switch fuels for reasons of economy and convenience; for example, a home owner may install a wood-fired furnace with ...

  4. House Energy Rating - Wikipedia

    en.wikipedia.org/wiki/House_energy_rating

    The House Energy Rating (HER) or House Energy Rating Scheme (HERS) are worldwide standard measures of comparison by which one can evaluate the energy efficiency of a new or an existing building. The comparison is generally done for energy requirements for heating and cooling of indoor space.

  5. Energy in Belize - Wikipedia

    en.wikipedia.org/wiki/Energy_in_Belize

    Belize currently imports 100% of its fossil fuel use (Launchpad Consulting, 2003). Under the San Jose Pact, which Belize signed onto in 1988, Mexico and Venezuela signed a treaty obligating them to offer a concessionary credit from 20-25% of the purchase price of their oil exports.

  6. Annual fuel utilization efficiency - Wikipedia

    en.wikipedia.org/wiki/Annual_fuel_utilization...

    The annual fuel utilization efficiency (AFUE; pronounced 'A'-'Few' or 'A'-'F'-'U'-'E') is a thermal efficiency measure of space-heating furnaces and boilers.The AFUE differs from the true 'thermal efficiency' in that it is not a steady-state, peak measure of conversion efficiency, but instead attempts to represent the actual, season-long, average efficiency of that piece of equipment ...

  7. Zero-energy building - Wikipedia

    en.wikipedia.org/wiki/Zero-energy_building

    A Zero-Energy Building (ZEB), also known as a Net Zero-Energy (NZE) building, is a building with net zero energy consumption, meaning the total amount of energy used by the building on an annual basis is equal to the amount of renewable energy created on the site [1] [2] or in other definitions by renewable energy sources offsite, using technology such as heat pumps, high efficiency windows ...

  8. List of companies of Belize - Wikipedia

    en.wikipedia.org/wiki/List_of_companies_of_Belize

    Belize is a country on the eastern coast of Central America bordered on the north by Mexico, on the south and west by Guatemala, and on the east by the Caribbean Sea. Belize has a small, mostly private enterprise economy that is based primarily on export of petroleum and crude oil , agriculture, agro-based industry, and merchandising, with ...

  9. Pulverized coal-fired boiler - Wikipedia

    en.wikipedia.org/wiki/Pulverized_coal-fired_boiler

    Prior to the developments leading to the use of pulverized coal, most boilers utilized grate firing where the fuel was mechanically distributed onto a moving grate at the bottom of the firebox in a partially crushed gravel-like form. Air for combustion was blown upward through the grate carrying the lighter ash and smaller particles of unburned ...

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