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Working Principles

aboutus_img M4 Green Technologies Private Limited (M4 Green technologies) is solution provider based in Bengaluru, the Silicon Valley of India. M4 Green technologies provides Air source water heating solutions to the commercial segment and swimming pools in large residential communities.Air source Heat pump water heaters are devices that transfer heat from the atmospheric air to water and heat up water to desired temperature.

M4 Green technologies Heat pump water heaters are

  • highly efficient
  • Occupy less space
  • Use renewable source
  • Eco-friendly with optimal use of electricity

M4 Green technologies brings to you, the unique combination of state of the art technology blended with environment friendly application and excellent TCO.


M4 Green technologies Heat pumps apply the basic technology that transfers heat energy from a heat source to a heat sink against a temperature gradient. These heat pumps use some amount of external high-grade energy to accomplish the desired transfer of thermal energy from heat source to heat sink.

Heat spontaneously flows from warmer places to colder spaces. A heat pump can absorb heat from a cold space and release it to a warmer one, and vice-versa.

When a heat pump is used for heating, it employs the same basic refrigeration-type cycle used by an air conditioner or a refrigerator but in the opposite direction, releasing heat into the conditioned-space rather than the surrounding environment. In this application, heat pumps generally draw heat from the cooler external air or from the ground.