Kensa Shoebox NG vs NIBE S1255
A side-by-side look at the Kensa Shoebox NG and NIBE S1255. Winning figures are highlighted.
| Kensa Kensa Shoebox NG | NIBE NIBE S1255 | |
|---|---|---|
| Price from | — | — |
| Heat output | 6 kW | 6 kW |
| Efficiency (SCOP) | 4.3 | 4.7 |
| Max flow temp | 65 °C | 65 °C |
| Refrigerant | R290 | R407C |
| Noise | 42 dB | 43 dB |
| Warranty | 7 yrs | 7 yrs |
Kensa Shoebox NG
Ground source costs more upfront (the ground loop is the expense) but rewards you with the best, most consistent efficiency. The Shoebox makes it viable even in compact homes.
Full Kensa Shoebox NG review →NIBE S1255
About as efficient as home heating gets. If you're committing to groundworks anyway, the S1255's SCOP and controls justify the premium for many self-builders and deep retrofits.
Full NIBE S1255 review →