Gas fireplaces, including inserts, can be direct-vent or ventless ... efficient since heat escapes up the chimney. Unvented ...

Roughly half of an average home’s annual energy bill (gas and electric), about $1,000, is spent on heating and cooling. Air ...

Our team of experienced reviewers has researched and tested a lot of options to find the most realistic gas fireplace. Authentic looking is not the only factor we focus on while testing, but also ...

Persistent Link: https://ieeexplore.ieee.org/servlet/opac?punumber=7361 ...