|Note, The original boiler was 65% efficient. In 1982, a new boiler could have been 88% efficient (in theory)|
Swimming pool heat pump pollution figures for various fuel types.
1 Pollution figures for oil 0.27 kg CO2/ Kwhr
2 Boiler efficiency 86 %
3 Pollution figures for north sea gas 0.19 kg CO2/ Kwhr
4 Pollution figures for electricity 0.47 kg CO2/ Kwhr (1980’s values)
|Pollution and cost figures taken from www.johnwilloughby.co.uk
The graphs make these assumptions
Original cost of oil heating £1,700 per year , oil at 20p/lit
Original oil boiler 65% efficient, new boiler, 88% efficient, £2,000 to install
Heat pump £5,000 to install.
Inflation ignored, so cost figures only give comparison between types.
Data for Lazonby and Greystoke swimming pools
Note, both pools are of similar size (around 175m²), and have common components except from the evaporator type.
Compressor Maneurop MT80 (reciprocating hermetic)