System | Emergy from economic resources âFâ in E17 seJF/yr.a | Economic costs in USD/yr.b | Global warming potential in ton CO2-eq./yr.c |
#1 Fireplace from wood | 9.74 | 105,000 | 1880 |
#2 Fresnel grid | 4.47 | 79,600 | 0 |
#3 Fresnel phot. | 1.40 | 20,800 | 0 |
#4 Infrared ceramic grid | 5.75 | 44,100 | 0 |
#5 Infrared ceramic phot. | 1.59 | 5420 | 0 |
#6 Infrared metal grid | 5.76 | 44,100 | 0 |
#7 Infrared metal phot. | 1.60 | 5420 | 0 |
#8 Infrared carbon grid | 5.57 | 44,100 | 0 |
#9 Infrared carbon phot. | 1.59 | 5420 | 0 |
#10 Heater firewood | 19.00 | 57,300 | 831 |
#11 Heater pellet | 6.14 | 25,600 | 23 |
#12 Heater gas | 257.00 | 46,300 | 16,900 |
#13 Heater grid | 18.30 | 204,000 | 0 |
#14 Heater phot. | 6.71 | 78,900 | 0 |