Iceland’s Renewable Energy Production

Writing about ground source heat pumps yesterday reminded me that people often refer to them as geothermal, which is a misnomer.  Groundsource refers to installing a pipe in the ground and circulating water through it, and transferring the heat of the ground indirectly to heat or cool.  Geothermal is a much rarer source of energy,... Continue Reading →

Icing on a VRV condensing unit

The recent cold temperatures reminded me of a situation that I encountered a few winters ago.  This is a VRV condensing unit in its first year of winter service.  Can you guess what the problem is here?  It isn't a malfunctioning de-icing cycle.  The outside temps were around freezing when this happened, and it didn't... Continue Reading →


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