I've made a rough estimate of electricity cost of geysers, would appreciate if someone could correct them if wrong. Given my non-tech background, chances of them being wrong are on the higher side :ashamed:
My math on electric geysers:
1) small 1 litre instant, 3kw, takes 2 mins.
so, per run: 3Kw x 2 mins. Per month: 3 kw x 60 mins or 1 hr = 3 kwh.
1 khw costs around 4 Rs, hence Rs 12 monthly (run once daily)
2) 10 litre storage, 2kw, takes 10 mins:
so, per run, 2kw x 10 mins. Per month: 2 kw x 300 mins or 5 hours = 10 kwh.
1 Kwh = around 4 Rs, hence monthly cost run once daily = Rs. 40.
If run 'a' times per day, cost will be 'a' x above estimates. So, run 5-6 times daily, instant 1L thingie will cost 12 x 5 = 60 Rs. per month.
However, the stores are putting up a different cost calculation which I'm not scientifically capable of understanding. They are showing me charts similar to the one at the bottom of this page: Gas Geyser -
At least 2 of them are telling me that electric geysers bill upto 5-6 k a year to run for 2-3 people.:huh:
I have taken from this forum that gas geysers for 3 people need 1 LPG cylinder every 40 - 45 days. So roughly, cost per year would be 9 LPG cylinders @ Rs, 350 = Rs. 3200ish.
Would appreciate some expert input on the calculations of the electric geyser thing. If my calculations are correct, will go with the electric only. Thanks for reading.
My math on electric geysers:
1) small 1 litre instant, 3kw, takes 2 mins.
so, per run: 3Kw x 2 mins. Per month: 3 kw x 60 mins or 1 hr = 3 kwh.
1 khw costs around 4 Rs, hence Rs 12 monthly (run once daily)
2) 10 litre storage, 2kw, takes 10 mins:
so, per run, 2kw x 10 mins. Per month: 2 kw x 300 mins or 5 hours = 10 kwh.
1 Kwh = around 4 Rs, hence monthly cost run once daily = Rs. 40.
If run 'a' times per day, cost will be 'a' x above estimates. So, run 5-6 times daily, instant 1L thingie will cost 12 x 5 = 60 Rs. per month.
However, the stores are putting up a different cost calculation which I'm not scientifically capable of understanding. They are showing me charts similar to the one at the bottom of this page: Gas Geyser -
At least 2 of them are telling me that electric geysers bill upto 5-6 k a year to run for 2-3 people.:huh:
I have taken from this forum that gas geysers for 3 people need 1 LPG cylinder every 40 - 45 days. So roughly, cost per year would be 9 LPG cylinders @ Rs, 350 = Rs. 3200ish.
Would appreciate some expert input on the calculations of the electric geyser thing. If my calculations are correct, will go with the electric only. Thanks for reading.