Cost of Boiler, heat pumps, solar system, that may work for a few to several years . In the case of expensive equipment such as heat pumps, heating devices of this type certainly will not return themselves before they start to get spoiled.
Gharama ya Boiler, joto pampu, mfumo wa jua, kwamba wanaweza kufanya kazi kwa ajili ya wachache kwa miaka kadhaa . Katika kesi ya vifaa vya gharama kubwa kama vile pampu joto, inapokanzwa vifaa vya aina hii hakika si kurudi themself kabla ya kuanza kupata kuharibiwa . Ni lazima pia tuangalie wamefunguliwa yao ya ufanisi .