If you have a new stove and are getting ready to do your taxes, look into the possible tax credit. The stove companies are posting certificates for their stoves. For example, the certification can be found on the Jotul and PE sites. I believe the 75% efficient is LHV.
jotul.com
Norwegian Cast Iron Stoves, Fireplaces & Inserts | Jøtul
At Jøtul we take pride in the art of designing and manufacturing the world's finest and most durable cast iron stoves and fireplace inserts, but also in customers who appreciate our products.
