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Specification options
Condensing, wall hung, gas boilersCapital cost years £/boiler Net present value for 60 £/boilerDesign life years
System boilers    
Condensing system boiler, maximum output 30 kW stainless steel heat exchanger, SEDBUK rating A 1,500 11,479 15
Condensing system boiler, maximum output 30 kW cast aluminium heat exchanger, SEDBUK rating A 1,490 12,435 10
Condensing system boiler, maximum output 30 kW cast aluminium heat exchanger, SEDBUK rating B 1,480 13,185 10
Combination boilers    
Condensing combination boiler, maximum output 30 kW stainless steel heat exchanger, SEDBUK rating A 1,750 12,052 15
Condensing combination boiler, maximum output 30 kW cast aluminium heat exchanger, SEDBUK rating A 1,600 12,779 10
Condensing combination boiler, maximum output 30 kW cast aluminium heat exchanger, SEDBUK rating B 1,500 13,248 10