Thinking of getting a pre epa insert.

??


A "Boot" is normally installed over the outlet to connect to a liner.


If no connector pipe is used, when cleaning chimney you should pull the insert from the hearth to clean behind it. Connection to a liner prevents removal of Insert at every cleaning. It also assures the correct diameter flue all the way to the top. Most fireplace flues are much larger, requiring you to allow more heated gasses up the stack to create the same draft (intake) as a smaller flue. 6 to 8" doesn't seem like much, but the area inside the 8" flue requires almost TWICE the amount of heat than a 6". 6" being 28.26 square inch vs. 8" being 50.24 square inch. Another advantag eis the ability to pour insulation around the liner, keeping inside temps hotter for a cleaner flue and better draft.
If you choose to instal with no liner, you must seal the insert to the face of the hearth so ALL the air from chimney draft is pulled THROUGH the Insert, not around it. (causing cool indoor air to leak up chimney reducing draft)

Also, what is the size of your fireplace? If the fireplace / box itself is not unattractive, and is large enough, you could set a freestanding wood stove in there as well (be careful about mantle clearance to combustibles and forward clearance to combustibles for both inserts and freestanders).

I mention this as it may open up a few more options to you, pre-epa or not.

Also (i'll reiterate what others said well), the use of a liner makes for a safer installation and makes cleaning much more complete and much easier. Do it and be done.

pen

Had a slammer insert for 21 years. Had to haul that heavy sucker out of the fireplace every year to clean the chimney. Put in a liner and ya just brush the gunk down into the firebox and you are done. Your back and hearth will thank you for it. Liners are much cheaper than back surgery.