When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Tankless water heating - Wikipedia

   en.wikipedia.org/wiki/Tankless_water_heating

   A hybrid water heater is a water heating system that integrates technology traits from both the tank-type water heaters and the tankless water heaters. [5] It maintains water pressure and consistent supply of hot water across multiple hot water applications, and like its tankless cousins, it is efficient and can supply a continuous flow of hot ...

3. Home fuel cell - Wikipedia

   en.wikipedia.org/wiki/Home_fuel_cell

   A commercially working cell in Japan called Eni-Farm is supported by the regional government, using natural gas to power up the fuel cell that then produces electricity and heated water. In 2013, 64% of global sales of the micro-combined heat and power fuel cell passed the conventional mechanical rotary systems in sales in 2012.

4. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   Gas tankless water heaters shall have an energy factor of 82% or greater under the 2015 standards, which corresponds to the pre-2015 Energy Star standard. In 2022 the Department of Energy proposed rules that would take effect in 2026 and would effectively eliminate inefficient non-condensing gas water heaters in commercial buildings.

5. Storage water heater - Wikipedia

   en.wikipedia.org/wiki/Storage_water_heater

   Solar heat is clean and renewable. This is the most modern system. Increasingly, solar powered water heaters are being used. Their solar thermal collectors are installed outside dwellings, typically on the roof or walls or nearby, and the potable hot water storage tank is typically a pre-existing or new conventional water heater, or a water heater specifically designed for solar thermal.

6. List of fuel cell manufacturers - Wikipedia

   en.wikipedia.org/wiki/List_of_fuel_cell...

   A fuel cell is an electrochemical energy conversion device. Fuel cells differ from batteries in that they are designed for continuous replenishment of the reactants consumed. This is a partial list of companies currently producing commercially available fuel cell systems for use in residential, commercial, or industrial settings.

7. High Temperature Proton Exchange Membrane fuel cell

   en.wikipedia.org/wiki/High_Temperature_Proton...

   Typically the HT-PEM fuel cell system is used in hybrid operation with a battery. HT-PEM fuel cell systems fueled with natural gas are also used for combined heat and power (CHP) applications in buildings. Manufacturers of fuel cell systems containing HT-PEM fuel cell technology: Advent Technologies (USA) Blue World Technologies (Denmark) [18] [19]