Industry Associations with Homeowner Information       Zone Heating Can Save You Money On Your Fuel Bills – www.fuelefficinetheating.com – A very useful site with the latest information on how to make  your energy dollar go further.   The Vent-Free Gas Products Alliance – www.ventfreealliance.com – A consumer's guide to vent-free heating products brought to you by the Gas Appliance Manufacturer's Association (GAMA).   American Gas Association – www.aga.org – Diverse site with information about the natural gas industry.   Hearth, Patio and Barbecue Association – www.hpba.org – Industry site with consumer brochures and dealer locator.   Propane: Exceptional Energy – www.usepropane.com  – Industry sponsored site for homeowners about the uses for propane (LP).   National Association of Home Builders – www.nahb.org – Useful site with much information about finding a home builder or remodeler, as well as statistics about housing.    National Fireplace Institute – www.nficertified.com – Find a NFI-certified fireplace installer in your area.   National Propane Gas Association – www.npga.org – Industry site, with links to state associations.       Other Heating and Home Products       Reddy Heater – www.reddyheat.com – Popular brand of outdoor heaters for construction sites.   Outdoor Leisure – www.AboutOutdoorLeisure.com – Innovative heating products for your deck or patio.   Heath/Zenith – www.heath-zenith.com – Innovative outdoor lighting solutions and door chimes.