Here's a look at an air-to-air heat exchanger and Accoya decking material.
Kevin O'Connor visits a "monolithic dome" house, built to last 500 years.
Improve a home's energy efficiency with these step-by-step instructions that demonstrate how to install a programmable thermostat.
At the IBS in Vegas, Amy looks at an energy-saving water heater heat pump.
Amy Matthews looks into the latest in state-of-the-art window technology.
Increase fireplace efficiency with two energy-saving products.