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Posted by Pete C. on April 24, 2008, 7:07 pm
Jerry wrote:
>
> I have an oil-fired boiler, which also serves as the hot water heater. Is
> there anything wrong with shutting off the circuit breaker to it, when I go
> away for the weekend?
>
> Even though the temperature control for the hot water is turned to the
> minimum, it will still come on a few times per day. (The room thermostat is
> turned so far down, to 50, that it never makes the boiler come on.)
If you're only gone for the weekend, the risk of cracking a boiler
section from thermal shock probably outweighs the small amount of oil
you would save, which even at today's prices is only perhaps $2.
2 days * 3 firings per day * 5 minutes per firing = 30 minutes fire time
= .5 hr fire time
1 gal per hour firing rate * .5 hr fire time = .5 gal fuel oil
.5 gal fuel oil * $4 gallon = $2
You can of course make a better log of firing intervals and duration and
use your actual fuel oil price to get a more precise result, but as you
can see, it isn't much.
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