I went to look at a new VF100FS at a dealer today on closeout & while it looks exactly like the Meridian & GF55 it has a lower BTU rating? It looks like the same stove so it must be right? Checking the website Vista Flame lists it at 40k btu while the PDF brochure on the same site lists 45k? It has to be a typo one could only assume so I have an email into Vista to confirm. It has the same board, same dual heat exchangers so it has to have the same btu's but let's see what they say. I just found it weird but looks like a nice stove otherwise. Not sure it will heat my 2,000 square ft cape but Vista says it will. I will post the reply from Vista. FWIW, the Meridian lists 45k but only heats 1200 sq ft, who proof reads these sites anyway!