3.2 Efficiency.
The efficiency of this appliance has been measured as specified in BS 7977 - 1 and
the result is as below:
Model
Efficiency % (Gross) Efficiency % (Net)
963 80 89
The gross calorific value of the fuel has been used for this efficiency calculation. The
test data from which it has been calculated has been certified by BSI (0086). The
efficiency value may be used in the UK Government's Standard Assessment
Procedure (SAP) for energy rating of dwellings.
The conversion of net efficiency to gross was achieved by multiplying the net
efficiency by the following conversion factor from Table E3 of SAP 2005, rounding
down to the nearest whole number.
3.3 NO
x
The 'Weighted' result for this appliance equates to NO
x
Class II.
Page 10
© Baxi Heating U.K. Limited 2010.
INSTALLER GUIDE
Gas Conversion factor from net to gross efficiency
Natural Gas 0.901
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