Joe,
I know some samll rual stations down in Kentucky that do still sign off. I'm
not sure about how large they are power wise though. What I am thinking for any
that would need this heater, they could add a threaded boss on each tank (after
cutting ot a round hole behind it). Then use standard water heater elements
screwed into the boss. Just wire them up with a thermostat. Cut them back to
where they just keep the water from freezing up.
Best,
Will
*********** REPLY SEPARATOR ***********
On 3/6/05 at 12:30 AM Joe Subich, K4IK wrote:
>Donii@sympatico.ca writes:
>>
>> When the transmitter was turhed off a simple $5 110v
>> automotive engine block heater would have kept things
>> from freezing.
>
>Not in that transmitter ... the cooling system contained
>about 100 gallons each. The transmitter was in an unheated
>building, the reservoirs were stainless steel and uninsulated,
>the pipes were uninsulated copper and the heat exchangers had
>several thousand square feed of effective area.
>
>At zero degrees Fahrenheit or below, the block heater would
>have needed to be several KW and auxiliary pumps would have
>been needed to move the warmed water through the exchangers
>to keep them from freezing.
>
>It isn't an issue these days since most commercial stations
>never sign off but 15 or 20 years ago, a lot of stations
>went dark between midnight or 2 AM and 6 AM local.
>
>73,
>
> ... Joe, K4IK
>
>
>
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