No brand/model number? If you can find that, you can research the model to determine btu.
The most discouraging thing for me was that it looked like the smallest model was 8 tons. That might be about right for max output for my whole house, but we currently have 2 units and we close off over half the square footage unless we have a house full of company. I'd wonder if it could ramp down to less than a quarter of capacity efficiently when we don't need much in our mild climate down south (MS, USA).
Charlie
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