Replies

1. 
   pico_project | Oct 01, 2022 06:16pm | #1

   Jotul F55 v2 is around 70%. Passes the new EPA standards (2020). Some that are a little higher don't seem to work as well (glass is always dirty).

1. 
   mikeolder | Oct 01, 2022 08:55pm | #2

   Thanks pico.. I'll pass it on

2. Expert Member
   Michael Maines | Oct 03, 2022 01:49pm | #3

   I have a Lopi Endeavor stove and it's very efficient, with low particulate emissions, while still accepting 16" logs. There are various European stoves, by Morso, Rais and others that are even more efficient, though they often require logs shorter than 16".

   The EPA threshold for emissions is 2.5 grams per hour of ≤2.5 micron particulates. The Lopi Endeavor is rated for 1.4 gph. The European stoves are as low as 0.9 gph. Mine burns cleanly enough that our chimney cleaner said we could skip a year or two of cleaning.