Tuesday, December 25, 2012
Good Bye 2012
Sunday, November 18, 2012
winter strikes again
Wednesday, September 19, 2012
The Pain with the Stain
Monday, September 3, 2012
Wildfire!
Sunday, September 2, 2012
on the cover
The Nob Hill Haus made it on the cover of the August issue of Builder's Magazine-as the feature story about a collection of 5 sustainable homes! For us, that is quite an achievement. We got an almost 5 page long article on the inside and are really proud of it. As part of a special symposium, the L.A. County Health Department and the Environmental Protection Agency will tour the rainwater harvesting system next week. They’ve been using it as a case study project for rainwater use in residential applications. We have September in the meantime, but there's still water in the cistern for them to see!
In the garden, the figs are ripe, but the squirrels get them faster than we can pick them- a real bummer.
Saturday, July 28, 2012
Nob Hill Haus receives two Awards!
Saturday, July 21, 2012
The power of the Sun- taken a step further
With the summer heating up a lot in recent days (we are hitting the 100s now regularly), the solar water heater is reaching the tank's hot water capacity long before the day is over. The collector fluid (glycol) reaches temperatures around 270 degrees while we have a water temperature of about 130 degrees inside the tank.
As a matter of fact, the pump is shutting off at 1.30 and the glycol drains back into the expansion tank to prevent the system from overheating. See the graphic above with the solar WH performance chart. The energy of the sun that is hitting the collector after that is not being used at all.
In order to make use of that energy, a steam generator would have to be connected to the tank and the hot water could then contribute to generate electricity.
This is definitely something to think about for future solar systems.
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