WebSite Links Thanks much for visiting us! Here are a few of the sites around the web that we recommend. National Fireplace Association NFPA's comprehensive fact sheets focus on fire, electrical, building, and consumer safety issues. Hearth Products Association The Hearth Products Association (HPA) is a trade association established in 1980 to represent and promote the interests of the hearth products industry in North America. Lignetics, Inc. One of the pioneers in the pellet and wood fuel industry. Pellet Fuels Institute The Pellet Fuels Institute's mission is to be a trade association which represents the fuel preparation and clean burning technology of renewable bio-mass energy resources. Puget Sound Clean Air Agency AllWebCo Hosting Fast, affordable, reliable website hosting.