I have a Vestal brand stove that looks a lot like those Fishers, we used it for eight years to heat our 1300 sf house. Burnt all night and would be 1/3 to 1/2 full of coals in the morning.
We use a Drolet now, heats 1100 sf no problem. But that 1100 is well insulated. Before I added foam board to the exterior, it was barely enough when temps dropped below zero and the wind was up. Now it has us opening a window or two quite often. My only gripe with the Drolet is the air supply. I want to be able to shut it down more. Damn thing will get to cooking and shutting it all the way down will not close it up enough to kill the flames and let it smolder.
Just put a Napoleon stove in the greenhouse, we will see how good it is. Got it cheap, so if needed, I will sell it and replace with a drolet or similar.
Last edited by OldGrayWolf; 10/23/22.
