Heat Recovery

Heat is produced by many different types of equipment.

This includes air compressors, engines, boilers, air conditioning systems, refrigeration or many others types of equipment. Generally this heat is rejected to the local environment through radiators, cooling towers, etc.

All cooling applications offer opportunities to recover heat. Heat Recovery can capture this heat “waste”, and can use it in many different ways such as; sanitary hot water, preheated water, and space heating in the winter, for your premises.

This rejected heat can often be economically recovered and be used instead of heat generated from electricity, gas or oil.

This heat is effectively free with the only cost being the capital cost to recover it.

Sources of Heat recovery can include: Boiler Flue Gases – Available Heat Over 70oC, Condenser – Available Heat From 40 – 45oC, or Oil Coolers – Available Heat Over 55oC.



Uses of Heat Recovered

  • Sanitary Hot Water
  • Preheat Water for Washing
  • Preheat Water for Premises Heating
  • Preheat Air or Processes
  • Space Heating in Winter

Sources of Heat

  • Boiler Flue Gases – Available Heat Over 70oC
  • Condenser – Available Heat From 40 – 45oC
  • Oil Coolers – Available Heat Over 55oC


Requirement Checklist

  • A heat recovery project works best if the heat source is available all year round
  • How recovered heat will be used. This needs to consider required temperature, required flow, time of usage and distance from heat source
  • Optimisation of recovered heat. It should be used where return will be highest
  • Plant layout. When installing new equipment, consider location for best use of heat recovery