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Posted by William Marsh on April 29, 2006, 12:53 pm
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Thanks for the info Sandbag, I have a fan in the sump and that works good
for now but we had a couple of days that were warm here in KS in April and I
don't like the fluctuation. Also think it might be a trade off with the
house thermostat and I am planning on plumbing it to the garage so the noise
is nill. Thanks again.Bill
> Sniff Sniff ...do I smell sarcasm. I work in the HVAC field and a 1/5hp
> should be good for that size, but with a 750W.?! You need to be cooling
> the light as much as possible and the laminar flow across the water
> should pull down the top water temp quite a bit assuming you have 16W
> or better fans. A suggestion is to run you lighting cycles shorter in
> the summer and longer in the winter to avoid mid afternoon heat
> attributing to your tank temp. I have even seen some people offset
> there peak lighting to the early morning. Also an exhaust fan in your
> sump where the water falls into your sump will help drive down temp
> without running a chiller. Chillers are not cheap,not quite, and
> comsume quite a bit of juice. This is a piece of equipment where you
> get what you pay for so dont cheap out if you really need it!
>
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> Gal.tank. On cooler days its not bad but when it gets sticky and the 750W
> MH on it gets up around 81 and may still climb when I have a longer photo
> period. Thanks in advance for the help.
> Bill
>