3 ms·
I often think this at first when I see such numbers, but then remember that condensing boilers have efficiencies over 100% so then I'm not sure.
by bcraven 7mo ago
I often think this at first when I see such numbers, but then remember that condensing boilers have efficiencies over 100% so then I'm not sure.
- dzhiurgis 7mo agoJust need to pump energy from anti-matter, simple!
- dns_snek 7mo agoIt's just a trick. The methodology used to arrive at >100% numbers doesn't actually consider all of the caloric energy in the fuel. The difference between higher and lower heating value of methane is about 10% and condensing boilers are usually marketed as 107% efficient. The gist of it is that the fuel might contain 1 kWh of chemical energy but 0.1 kWh was traditionally lost to water vaporization during combustion, so they start with a denominator of 0.9kWh and since condensing boilers capture this "lost" energy through condensation it leaves you with >100% efficiency, on a technicality. No laws of physics are being violated.