The Baxi Heating Boston 40 RS has a SAP seasonal efficiency rating of 55.0%.
The Boston 40 RS is a Non-Condensing Conventional boiler with a maximum power output of 11.7kw that uses Gas as its fuel source.
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|Model||Boston 40 RS|
|Output (KW)||9.1 - 11.7|
|Manufactured From/To||1993 - 1995|