MakeHeat

Making heat is only part of the battle.  If I had a screen house with a solar air heater, it wouldn’t be keeping me warm: you have to keep the heat you make.  There are several products out on the market that allow you to put foam into your pre-existing walls to insulate and seal cracks.  This is the first one I found, and plan to follow with more.

Foam It Green Polyurethane Spray Foam Kits – Cart.

TX, USA – I always thought in terms of fluid dynamics when it came to heat – a fancy way of saying I wasn’t thinking clearly.  Here’s a great article, and what I learned today (you should learn at least one new thing every day, and relearn three). …”In simple terms, heat travels in three ways: convection, conduction and radiation,” Reed said. “The radiant barrier blocks the radiant spectrum; additional insulation slows conduction of heat into the house, and we put in another 20 eave vents and replaced our passive spinning turbines on the roof with solar-powered vents. That solves the convection problem.” …

via Dollar Wise: With radiant barriers, high expectations for lower bills | News for Dallas, Texas | Dallas Morning News | Texas Regional News .