I put in a supervent chimney in January and it has been great. I went with 8 and had to use 4 sections @ $95 a section bought at medards and had a local contractor install it for $200 cash. It ended up being under $800 with installation after buying the sections and the other connectors and black pipe.
The United States of America and its agencies and instrumentalities (also referred to as United States governmental entities) are also exempt from paying New York State sales tax on their purchases. Other states of the United States and their agencies and political subdivisions do not qualify for sales tax exemption.
A sales tax is a tax levied on the sale of goods and services. Very often you pay sales tax when you purchase something. There are three different types of sales tax: the vendor tax, the consumer tax, and the combination vendor-consumer tax.