The Baxi Heating Boston 70 RS has a SAP seasonal efficiency rating of 55.0%.
The Boston 70 RS is a Non-Condensing Conventional boiler with a maximum power output of 20.5kw that uses Gas as its fuel source.
We recommend that you upgrade to a new, more efficient boiler to help reduce fuel bills and carbon dioxide emissions. Get quotes for a new boiler today
|Model||Boston 70 RS|
|Output (KW)||17.8 - 20.5|
|Manufactured From/To||1993 - 1995|