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2. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   Water heating is a heat transfer process that uses an energy source to heat water above its initial temperature. Typical domestic uses of hot water include cooking, cleaning, bathing, and space heating. In industry, hot water and water heated to steam have many uses. Domestically, water is traditionally heated in vessels known as water heaters ...

3. Asset management plan period - Wikipedia

   en.wikipedia.org/wiki/Asset_management_plan_period

   An asset management plan (AMP) period is a five-year time period used in the English and Welsh water industry.It is used by the Water Services Regulation Authority to set allowable price increases for the privately owned water companies and for the assessment of many key performance indicators such as water quality and customer service.

4. Hydronics - Wikipedia

   en.wikipedia.org/wiki/Hydronics

   Hydronics (from Ancient Greek hydro- 'water') is the use of liquid water or gaseous water (steam) or a water solution (usually glycol with water) as a heat-transfer medium in heating and cooling systems. [1][2] The name differentiates such systems from oil and refrigerant systems. Historically, in large-scale commercial buildings such as high ...

5. List of abbreviations in oil and gas exploration and production

   en.wikipedia.org/wiki/List_of_abbreviations_in...

   PVTRE – pressure volume temperature report; PW – produced water; PWD – pressure while drilling; PWB – production wing block (XT [clarification needed]) PWHT – post-weld heat treat; PWRI – produced water reinjection; PWV – production wing valve (also known as a flow wing valve on a christmas tree [citation needed])

6. District heating - Wikipedia

   en.wikipedia.org/wiki/District_heating

   It used geothermal energy to provide heat for about 30 houses and started operation in the 14th century. [4] The U.S. Naval Academy in Annapolis began steam district heating service in 1853. [citation needed] MIT began coal-fired steam district heating in 1916 when it moved to Cambridge, Massachusetts. [5] [6]

7. Tankless water heating - Wikipedia

   en.wikipedia.org/wiki/Tankless_water_heating

   Gas water heaters have an exhaust vent or one to two exhaust pipes on the top, and still require electric power for electronics, sensing and ignition. A three-phase, 21 kW, 400-volt tankless water heater in Europe, with new European color coding for three-phase power. There are also heaters that use several single-phase circuits instead.

8. Ground source heat pump - Wikipedia

   en.wikipedia.org/wiki/Ground_source_heat_pump

   Liquid-to-water heat pumps (also called water-to-water) are hydronic systems that carry heating or cooling through the building through pipes to conventional radiators, underfloor heating, baseboard radiators and hot water tanks. These heat pumps are also preferred for pool heating. Heat pumps typically only heat water to about 55 °C (131 °F ...

9. Hot water reset - Wikipedia

   en.wikipedia.org/wiki/Hot_water_reset

   A hot water reset control loop measures the outside air temperature; this information is used to estimate demand or heating load as the outdoor temperature varies. The supply hot water temperature is modulated up and down range in an inverse linear ratio to outside air temperature. The typical range for conventional boilers is to vary the ...