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One of our most popular posts is How Much Electricity Does My AC Consume? In that post I tried to explain how to calculate AC power consumption by multiplying the max current by the voltage of the AC unit. While I think this is a good introduction, I don’t think it’s the best method to … continue reading 
One of the best ways to reduce the electricity your AC system consumes is to program your thermostat. But if you’re building a new green dream home or upgrading your HVAC system, then going with hydronic heat and a multi-split heat pump system may be the most efficient you can get. If you … continue reading 
I saw a post on CleanTechnica last week that highlighted a report prepared for the International Window Film Association that said “Window films are a more cost effective retrofit opportunity for homes than other measures, however, especially in homes with single pane glass.” Regarding the figure at the top of this post, which was taken … continue reading 
The following guest post was written for Mapawatt by Don Lloyd, author of The Smart Guide to Geothermal: How to Harvest Earth’s Free Energy for Heating & Cooling. —————— I had done my homework and made a decision. My new home was going to have a geothermal heating and cooling system. This would be the centerpiece of … continue reading 
I have to admit, the Dyson Hot space heater is a good looking heater, and it damn well better be at $400 a pop! We’ve covered electric space heating in exhaustive detail and even very expensive electric space heaters (Edenpure) , and the complaint has always been that they are fine for heating … continue reading 
I was actually driving home from work today lamenting the fact that there hasn’t been any products in the home energy conservation or clean energy market lately that have gotten me excited. Then I saddled up to my computer and read a Fox news article on the Nest learning thermostat. Nest was founded by Tony Fadell. … continue reading 
We’re finally able to open our windows in the evenings to stay cool, so I know home heating season is right around the corner! Traditional sources of heating homes rely heavily on fossil fuels: heating oil and natural gas. But there are other options! We’ve covered many … continue reading 
We’ve written many times on solar PV electricity, the most common form of homeowner solar. We’ve also written about solar thermal hot water heating. But another method for utilizing solar to reduce your energy bill is solar powered air conditioning! Solar powered air conditioning works on the absorption cycle. From wikipedia on absorption refrigerator: An … continue reading |
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