Dear god how do you keep sane with those kinds of units? You're making it so confusing you fail to realise some of your numbers don't quite line up
In sane units:
- 2 m^3 of gas generates 6.6 kWh of electricity
- which generates 14.7 kWh of heat (at some temperature
differential).
- The same 2 m^3 of gas generates 20.8 kWh of heat
- of which about 16.4 kWh is usable assuming some losses.
Of course your implied electricity generation is only around 31% efficient, so I'm not sure what that 60% you mention in the beginning is about. The COP you're using is around 2.2, which together with a 60% efficiency for generating electricity would be greater than 1, outstripping anything that's physically possible to achieve with a furnace.
In sane units:
- 2 m^3 of gas generates 6.6 kWh of electricity
- which generates 14.7 kWh of heat (at some temperature differential).
- The same 2 m^3 of gas generates 20.8 kWh of heat
- of which about 16.4 kWh is usable assuming some losses.
Of course your implied electricity generation is only around 31% efficient, so I'm not sure what that 60% you mention in the beginning is about. The COP you're using is around 2.2, which together with a 60% efficiency for generating electricity would be greater than 1, outstripping anything that's physically possible to achieve with a furnace.