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Is it possible to have a solar PV system with batteries power my home with the grid as backup power?

— Curtis Miami, FL

Answered by Florian Speier on August 30, 2010

When insulating interior basement walls, do you need to insulate below the frost line? Or does the soil act as a natural insulator?

— paul Sellersburg, IN

Answered by Florian Speier on July 30, 2010

I'm interested in solar window film and I'm not sure which product to use. Solar Guard film (with metals) or 3M Prestige (no metals)?

— Susan Martinez Clifton, NJ

Answered by Florian Speier on June 21, 2010

I am trying to research, compare and decide the most energy efficient product for all my windows: solar screens vs. solar film?

— Robert Sherrow Flower Mound, TX

Answered by Florian Speier on June 4, 2010

I am considering Visions 3000 with Zo-e-shield for vinyl replacement windows, but I can't find evaluations. What do you think?

— Dawn Gardner Flagstaff, AZ

Answered by Florian Speier on April 27, 2010

In an arid climate, should we place the (plastic) vapor barrier inside the frame rather than Tyvek at the exterior?

— KC Boise, ID

Answered by Florian Speier on March 28, 2010

Can I configure an electric tankless water heater to run a baseboard hot-water heating system?

— Larry Cassis, Brooksville, ME

Answered by Florian Speier on October 3, 2008

I want to help get my mom's house "off the grid." Where do I start?

— Jackie Mellen, Chipley, FL

Answered by Florian Speier on October 3, 2008

Our Oregon home is not a good candidate for solar. How can we make the house more energy efficient?

— Brittany Sims, Portland, OR

Answered by Florian Speier on October 3, 2008

 
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