Dehumidifier vs air conditioner energy use.
Air to air exchanger vs dehumidifier.
You will want to run a dehumidifier in the summer because if you bring air in from outside it will contain humidity possibly more than what is already in the basement.
They work by sucking in air which is then rapidly cooled down.
The supply air temperature from the sd 12 is significantly closer to the return air temperature than a typical ac system but it is still a lower temperature than the return air temperature.
In energy use dehumidifier vs air conditioner the debate is not so all encompassing because there are many types of air conditioners and dehumidifiers.
Like an erv a ventilating dehumidifier introduces fresh air from outside your home filters it and removes indoor air for consistent circulation.
The heat exchanger is not 100 effective so there is some sensible cooling from the sd 12 in addition to the dehumidification.
A dehumidifier is a machine that is used to suck that moisture out of the air with the main goal of drying the air in your home.
I would recommend not.
Having your ac on for 24 7 will definitely leady to a higher power bill.