by jdunkley | Sep 10, 2010
Occupying only 3 square meters, this single collector system is perfect for up to 2 or 3 people as a solar preheat system. With the closed loop glycol, remote monitoring, heat exchanger automatic anti-fouling, tank and collector overheat protection and long life pump,...
by jdunkley | Sep 1, 2010
What sets this solar thermal installation apart from many others is the variable speed pump control and the reverse return collector. In periods of lower solar radiation (late/early day, winter and overcast/cloudy) and when there is a higher storage tank temperature,...
by jdunkley | Jul 23, 2010
This installation uses a CSA approved packaged solar hot water preheat system. The collectors are of the flat plate variety with a mix of food grade propylene glycol and water as the heat transfer fluid. With this type of collector, roof penetrations, linesets,...
by jdunkley | Jul 9, 2010
The main advantage of an integrated storage solar thermal system is simplicity (which is reflected in the cost) – no heat exchanger, no pump, no controller and no glycol. The disadvantage is the lack of freeze protection and requirement for the tank on the...
by jdunkley | Jun 17, 2010
How is it that renewable energy ended up on the opposite side of the fence to the almighty buck? When we talk about a high efficiency condensing furnace or hybrid car, we are immediately asked a) what is the incremental cost over a cheaper option and b) how much will...
by jdunkley | May 24, 2010
Savings – Calculated $2,800 CAD/year energy cost, displacing 4,100 litres/year of heating oil, 12 1/2 Ton/year CO2 equivalent reduction Type – Forced air, closed loop, water to air, desuperheater Groundloop – Horizontal slinky, 600′ of trench,...
