UL & EPA Listings
The good news is that the a UL listing is rarely required for the installation of an antique stove. To the best of our knowledge there is no code or law at any state level that bans the use or installation of non-UL listed stoves manufactured before 1/1/1981 provided that they are in good repair.
However that being said, building inspectors, officials and other authorities having jurisdiction (AHJ) are allowed interpretations and decisions that could preclude use of an antique stove on a city level. Your local building official will have the right to make a decision when something is not clear. Because all state and local codes differ, you will need to check your local codes specifically.
You may need to do a little research at your town hall to determine if there are any local codes on the books that might prevent the installation of a non-UL listed stove. At your local town hall you will find a book containing BOCA codes (Building Officials Code Administrators International) and/or ASME codes (American Society of Mechanical Engineers). You want to seek out the listings for "Solid Fuel Room Heaters". This entry will be one to three pages long. Be sure to read these codes completely.Towards the end of these guidelines there is usually a statement that solid fuel burning stoves manufactured before 1/1/1981 are exempt from needing UL Listing provided that they are in good repair or a restored condition. Our stoves are classified as "antique" stoves because they were manufactured before 1/1/1981.
Most states accept the guidelines provided by the National Fire Protection Association (NFPA); localities rely on the local inspectors to interpret and enforce these codes. It is not uncommon to encounter resistance to the installation of an antique stove from inspectors who are uneducated, unfamiliar or inexperienced with antique stoves. Your local inspector may be familiar with the codes governing new stoves but unless they have worked with antique or non-ul listed stoves, they my lack knowledge of the appropriate codes (or exemptions) that govern "antique", generic" and other non-ul listed stove. You may find it beneficial to provide him or her with the information from the National Fire Protection Association (above).
The NFPA devotes a large part of their code with instructions for "generic" or "unlisted" stoves. The NFPA recognizes the value of an antique stove and has laid out these provisions to ensure safe and proper installation of the antique stove.