The National Association of the Deaf (NAD) defines a person who is deaf as someone who is âunable to hear well enough to rely on their hearing and use it as a means of processing information.â Additional information can be found at the NAD site, http://www.nad.org/infocenter/ infotogo/dcc/difference.html.
A contractor will charge $308 to install a 14-inch power ventilator which includes the labor and material; you can do it for more than half and pocket a 57 percent savings.or about $130 you can buy what you need: a power ventilator, an electrical box and cover, a short piece of three-wire BX or Romex cable, a package of wire nuts and a quart of roofing cement.
A metal dryer vent - A high-quality model with a removable screen and a spring-loaded damper along with the appropriate weatherproof seal will cost $30; New duct work - This will include the use of only flexible aluminum and metal duct work due to the durability and safety.