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Energy waste in heating and cooling.

John Cockerill's picture
Founder www.exqheat.com

Inventor of boiler control to deliver accurate heat loss with precise boiler btu generation.

  • Member since 2021
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  • Jan 6, 2023
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Heating and cooling systems by and large are controlled by simple on and off methods with out anticipation of the actual heat loss or gain of the structure.  When the thermostat calls for heat, a full blast is delivered as though these requirements are on a design degree day.  This is wasteful in the shoulder mild seasons periods.  Delivering precise heat exchange for heat loss can save 20-30% reduced energy use.  This reduction of energy waste can make the renewable sources more efficient.  

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Jim Stack's picture
Jim Stack on Jan 9, 2023

John do you have any examples of this more efficient heating and cooling?  Doesn't a variable speed fan in a HVAC system do a similar thing ? Do smart thermostats do this too ?

Henry Craver's picture
Henry Craver on Jan 12, 2023

Conservation will not solve the climate change problem. That being said, there's obviously so much low hanging fruit in the ee sector. If we'd just pick it up, as most of Western Europe has this winter, we'd do the world a lot of good. 

Marco Mazzoni's picture
Marco Mazzoni on Jan 25, 2023

Modern commercial HVAC air handlers are usually equipped with variable frequency drives so they can modulate the amount of air passing over heating/cooling coils. Economizer system components mix existing air with fresh outside air (depending on temperature deltas) to reduce the need for heating/cooling inputs. That said, there are many older systems that operate on the full on/off mode that could be upgraded to be more efficient. Most residential heat pumps feature inverter technology that allows the system to ramp up/down as needed to meet demands. 

John Cockerill's picture
Thank John for the Post!
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