yah the Apex kicks the heaters on at 26.1 and turns them off at 26.6 or 26.7 I think, which I think is the difference between 78.9 and 80.06, so it's a pretty tight range. I just takes a good long while to swing the temp even that small amount with 600 watts of heater, but on the plus side, it takes hours for the temp to fall enough to trigger the heaters. I thought that maybe added heaters would be more efficient, but I guess it probably all comes out in the wash, your'e still heating X volume X degrees.
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