Air-to Water Heat Exchangers are a very simple and reliable cooling and/or heating option for smaller spaces with basic climate control needs. They also a very efficient heat exchange option for users with a significant difference between ambient outdoor temperatures and their process/application. Designed for simplicity, efficiency, and durability even in the harshest of environments; air-to-water heat exchangers are worth considering for just about any application!
Generally speaking, using air-to-water heat exchangers as a "dry chiller" only makes sense in cooler climates. Winter temperatures north of 39° are on average sufficiently (and consistently) cool enough to justify the investment in a dry chiller. The further north, the colder and longer winter tends to be, and the greater the advantage of a dry chiller. The math for this is relatively straight forward if you know the typical kW/hr rate from your local utility company. Where a chiller or A/C compressor may draw 20-30 Amps at 208V single phase, a fan motor on a dry chiller may only draw 1 Amp. If your outdoor temp is 30 degrees cooler (or more) than your process/application, you should see power savings of 75-90%!
Most common applications for these units are:
Climate Control Applications (As a Unit Heater and/or Cooler):
- Garage / Workshop
- Commercial & Warehouse Space
- DIY Air Handler
Air-to-Water "Dry Chiller" Applications:
- Greenhouse Irrigation
- Fish Aquariums
- Augment Chilled Water Systems
- Brewery / Distillery Chillers