SAP 2009 The Government’s Standard Assessment Procedure for Energy Rating of Dwellings
SAP 2009 version 9.90 (March 2010) Table 12c: Distribution loss factor for group and community heating schemes 203 Table 13: High-rate fraction for electric DHW heating 204 Table 14 : Rating bands 205 Table 15 : Relationship between SAP 2005 ratings and ....