1.Built in hot water or Heating and cooling function
2. Set point temp can be adjusted to 0.1 deg c, then make it much more precise on water temp. Ideal for fish pond heating, which had strictly water temp control requirement.
3. Auto-re-start function, which made heat pump continue to keep the status before power gone. More convenience on operation.
4. Anti—freezing function, well protect the water heat exchanger during low ambient temp and low water temp.
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