Operating derating curves unavailable.

[cyclops2]

Did not realize your industry has the same problems as mine.

Ordered a Danby DDR5011 dehumidifier fromNo naming of direct purchase sites allowed. It is rated as a low temperature unit with cut off of at 45 F.

2 replacement units later a call to Danby results in...ALL of our units are not to be operated below 60 F. No exceptions. So I asked for a derating curve due to temperature & humidity. None available.

Called another company, RETAIL rated to low temperature use. Again No curves. MIGHT get curves from manufacturer.

Guys. Is there even such a thing as a EFFICIENT 50 to 55 F dehumidifier for a 1200 SF basement ?

If none exists @ about $. I assume I am forced to select the correct sized, small office preheater & have it blow 80 to 90F preheated air to the Dehumidifier to gain efficiency.

I do redesigning of old equipment to be more efficient.

[Kevin O'Neill]

Heating the air before it goes to the dehumidifier will not help efficiency. You will lower the RH to the point the dehumidifier will not work. You need a Therma-Stor, but it is not in your price range.