Quote:
Originally Posted by Daox
I'd be very interested to see how much oil this saves. I don't suppose there is a good way of measuring this though?
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It's actually going to use more oil, now that we are off the manual-mode.
Using on-demand with the switch is just too inconvenient for us.
And, washing your hands during the day with cold water isn't fun.. (65dF)
But, the total usage is not going to be super expensive, and it can be calculated easily.
Summer time use is going to be 15 gallons (or less*) a month.
At $3 per gallon (a guess for this winter) is $45 a month. Not that cheap!
* It will randomly be somewhat less, if the PV is working well and/or we don't use
a lot of hot water the day before. The burner will run a
short-cycle
for 15 or 20 minutes and shut off before the 30 minute segment is over.
We have observed two short-cycle burns this week.. (Approx 20 min).
It might be cheaper to use an electric HW heater,
but we need the oil burner for back-up heat in the winter.
(Which is long in this area).
So, we are going to suffer with $45 per month until the price of PV takes a drastic drop..
