| 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 |