garm pani ke liye bijli ka geyser roz kafi bijli khata hai. solar water heater mein shuruaati kharch zyada hai, par bijli ka kharch kam ho sakta hai.
bijli ka geyser:
1. keemat kam, lagana aasan.
2. har baar chalne par bijli lagti hai, isliye bill par asar padta hai.
3. chhote parivar ya kam istemal mein theek rahta hai.
solar water heater:
1. shuruaati keemat zyada.
2. dhoop mein pani garm hota hai, isliye bijli ka kharch ghat sakta hai.
3. chhat par khuli aur chhaya-rahit jagah chahie.
4. badal aur sardi ke dinon mein pani kam garm ho sakta hai, isliye kai model mein bijli ka sahayak heater bhi hota hai.
kaise tay karein:
1. parivar mein kitne log roz garm pani lete hain, yah ginen.
2. aapke ilaqe mein dhoop kitne mahine achhi rahti hai, yah dekhen.
3. kul laagat ko bijli ki bachat se bhag dekar dekhein ki kitne saalon mein paisa vasool hoga.
4. warranty aur sarvis zaroor poochhen. taink aur tyoob ki warranty alag ho sakti hai.
agar parivar bada hai aur chhat khuli hai, to solar heater par zaroor vichar karen.