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About Ornamental Iron Work
A well designed residential heating and air conditioning system plays a critical role in providing comfort and energy efficiency for today's new and existing homes. The process for acquiring such a system follows three basic steps: the selection of the HVAC equipment, the proper sizing of the air distribution duct work, and proper installation and maintenance of the system. Selecting the HVAC equipment starts with determining whether the system requires only a furnace, or the building needs to be an air conditioned as well. At that point, the different choices in components can be weighed based on a comparison of efficiencies and upfront costs versus energy savings over the lifetime of the equipment. Additional considerations such as air conditioning filter efficiencies, humidity control, and the inclusion of ventilation duct can also be addressed at this time. If the HVAC equipment will only include a furnace for residential heating applications, then the HVAC designer will size the system to include heating duct only. Local duct work fabricators will manufacture the duct system to the exact sizing specifications of the system designer. Similarly, if the system includes a condensing unit component for air conditioning, the local duct work manufacturer will insulate and seal the duct work differently to address the potential of moisture control issues. Ventilation duct sizing is based primarily on whether the ventilation system is active or passive. Many active ventilation devices incorporate their own fan, and the duct sizing is reduced to accommodate the low level of air flow. However, in a passive system where fresh air is brought in and circulated through the HVAC equipment, the ventilation duct is typically larger and becomes an active component of the entire system.
Bridge Structural & Ornamental Iron Workers
1750 New York Ave NW, Washington, DC 20006(202) 638-7186 Write a review
Neighbor Works America
1325 G St NW Ste 910, Washington, DC 20005(202) 220-2300 Write a review
115 V St NW, Washington, DC 20001(202) 232-3400 Write a review
The Refuser Solidarity Network Inc
115 V St NW, Washington, DC 20001(202) 232-1100 Write a review
115 V St NW, Washington, DC 20001(202) 232-7460 Write a review
Sevenson Environmental Inc
5201 Little Falls Rd NW, Washington, DC 20001(202) 237-5893 Write a review
925 15th St NW, Washington, DC 20005(202) 408-0305 Write a review
Firefly Children's Network
600 N Hampshire Ave, Washington, DC 20037(202) 338-5706 Write a review
2200 M St NW, Washington, DC 20037(202) 223-8021 Write a review
Archdiocesan Legal Network
924 G St NW, Washington, DC 20001(202) 628-4263 Write a review
Captive Networks Inc
1111 19th St NW, Washington, DC 20036(202) 223-0187 Write a review
More on Duct Work
Most HVAC contractors prefer their heating duct to be made from galvanized metal. Typically these products can be purchased in a prefabricated round form, or made as square duct at a local duct work fabricator. These companies have state of the art sheet metal equipment that allows them to provide tightly sealed, energy efficient residential heating systems. Air conditioning air distribution systems are often fabricated from sheet metal at a local duct work manufacturer as well, but in moderate to hot climates a product called flexible duct is often preferred due to its versatility and lower installed costs. Flex duct as it is often called, is a polyethylene plastic wrapped over a steel coiled wire core. When the appropriate HVAC system has been installed, it is important to make certain it is properly maintained. In particular, the air conditioning filter should be checked and replaced at least every three months, more often if necessary. The heating duct, the evaporator coil and the ventilation duct should all be inspected and periodically cleaned to remove dirt and debris that can lower equipment efficiency and create indoor air quality issues. Proper selection of the HVAC equipment, correct sizing of the air distribution system, quality installation and system maintenance can provide many years of worry free comfort and energy savings. Consult with your local duct work fabricator and HVAC contractor, and insist on superior components and system design according to certified ASHRAE standards.