Efficiency of true antique stoves.

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Stoutimore

New Member
Dec 8, 2024
6
Texas
We're in central Texas and use woodstoves to keep small greenhouses from freezing. Mostly we burn seasoned "paper mulberry" wood from our own place. We currently use a Morso 1B made during the mid 1970's. I think it's an "airtight" stove, but isn't near as efficient as new models. I load it maybe every 3 hours during the night. Just to get an idea, how would this stove compare in efficiency with one of the old box-style stoves that pre-date the airtights?
 
They are basic, simple stoves, not that clean burning, but reliable as long as well maintained. Similar stoves of this generation were made by Jotul, Lange, etc.