Direct Vent Equipment Description Guide describing categories of direct-vent combustion space- and water-heating equipment and combustion safety testing.
Image A direct-vent sealed-combustion fireplace takes its combustion air directly from outside through a dedicated air inlet and vents combustion products directly outside Publication Date Mon, 02/04/2013 - 12:00
Image A direct-vent sealed-combustion furnace has dedicated pipes for combustion air and exhaust Publication Date Thu, 02/07/2013 - 12:00
Image Furnaces, boilers, and water heaters located within the home’s pressure boundary are mechanically drafted or direct-vented
Image Because flue temperatures are cool, intake and exhaust ducts on a Category 4 direct-vent sealed-combustion condensing furnace can be made of PVC Publication Date Thu, 02/07/2013 - 12:00
Image For fireplaces that are not mechanically drafted or direct-vented to outdoors, total net rated exhaust flow of the two largest exhaust fans is .15 CFM per 100 sq. ft. of occupiable space when at full capacity
Fireplaces and Wood Stoves Have Proper Ventilation Description Guide describing how to provide combustion air for fireplaces and how to test fireplaces for combustion safety.
The Habitat for Humanity of Metro Denver Zero Energy Demonstration Home Author(s) Habitat for Humanity of Metro Denver, National Renewable Energy Laboratory Organization(s) NREL, Habitat for Humanity of Metro Denver Publication Date April, 2008 Description Case study describing a Habitat for Humanity zero net energy home in Denver.
Pre-Retrofit Assessment of Existing HVAC Systems Description Information guide describing considerations for before retrofitting HVAC systems, retrofit scope considerations, and HVAC system replacement options.
Sealed and Insulated Flex Ducts Description Guide describing how to air seal and insulate flex ducts.
Whole House Ventilation Strategies for Existing Homes Description Guide describing how to select and install whole-house ventilation systems for existing homes.
Ventilation and Exhaust Strategies for Multifamily Housing Description This guide presents central and individual dwelling unit ventilation and exhaust strategies for multifamily construction.