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Protherm Boilers Boiler Efficiency Rating

ModelTypeFuelEfficiency
Protherm 100ECNon-CondensingGas79.3%
Protherm 80 ENon-CondensingGas78.7%
Protherm 80 ECNon-CondensingGas78.7%
Protherm Protherm 40-50 CINon-CondensingGas78.9%
Protherm Protherm 60-80 CINon-CondensingGas78.3%