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Posted by Joseph Meehan on February 6, 2007, 5:16 pm
Dugie wrote:
> Hi,
>
> We're looking after a house which has been vacant for about 6 months,
> and will be vacant for at least a few more. We check it every 2nd or
> 3rd day.
>
> Nova Scotia, Canada, climate in winter is cold, often well below
> freezing, sometimes down to -20C or lower (about -6F).
> 5 year old hot air oil furnace set at about 68F, serviced this summer.
>
> Two months ago, we turned off the main water supply valve, left all
> taps open and water drained, including outside taps, toilet tank
> empty. I forgot, so power flowed to the electric hot water tank until
> last week, and the tank was full.
>
> Question: about draining the hot water tank, which now has the power
> supply breaker off:
>
> Drain water, or leave full?
>
> If drained, will the tank be more likely to rust from inside?
> If full, and the furnace fails, I suppose the tank may freeze and
> crack.
> If partly filled, what happens?
> Currently it's almost completely drained.
>
> Tank is in heated basement, inlet & outlet pipes go upward. The
> basement laundry tub valves are open.
>
> Thanks!
> Dugie
I would suggest draining it. If you do, turn it off and kill the
circuit breakers to it first.
--
Joseph Meehan
Dia 's Muire duit
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