by jdunkley | Nov 23, 2011
With this installation, inputs such as hot and chilled buffer tank temperatures, 22 room thermostats and outside air temperature are all taken into account to control geothermal heat pumps, circulating pumps and a plethora of control valves. When the heating and...
by jdunkley | Sep 27, 2011
In this application, fuel oil was burned in a low efficiency boiler for space heat and, year round, for domestic hot water. Thermal efficiencies on aging boilers of this type can be as little as 50-60% meaning half the internal energy in the fuel oil is not...
by jdunkley | Sep 6, 2011
Clean & Green Something I hear from time to time is that solar is “ugly”. It doesn’t have to be. By paying attention to detail and planning the installation to be as unobtrusive as possible, it can not only work well for decades and displace...
by jdunkley | Mar 25, 2011
With this high quality Canadian made, 4 collector solar thermal array, the owners can expect 15GJ+ of energy to be displaced annually, by the...
by jdunkley | Mar 9, 2011
Most geothermal heat pump installations produce either hot water OR air for hydronic or forced air distribution as well as domestic hot water. A triple function installation does both, it provides hot water AND air for hydronic and forced air space heat as well as...
by jdunkley | Jan 15, 2011
The addition of a premium solar thermal system with storage, freeze and overheat protection to this small studio has brought the owners one step closer to energy self sufficiency. Innovative lineset routing, flashing and collector placement reduces roof penetrations...
