Zephaire - Unit Heater/Cooler Air-to-water Heat Exchanger (Top-Port)

Zephaire - 12.5k-50k BTU Unit Heater/Cooler Air-To-Water Heat Exchanger
Zephaire - High Speed Unit Heater/Cooler Air-to-water Heat Exchanger
Zephaire - High Speed Unit Heater/Cooler Air-to-water Heat ExchangerZephaire - High Speed Unit Heater/Cooler Air-to-water Heat ExchangerZephaire - High Speed Unit Heater/Cooler Air-to-water Heat Exchanger

Product Dimensions: 
13.5 × 15.75 × 12 in
25.75 lb
Product Certifications: 


The Zephaire high speed hanging unit heater/cooler air-to-water heat exchanger (air handler / unit heater) has adjustable louvers and a generously powered single-speed fan to direct air flow exactly where you need it! Fan motor speed can be adjusted with a separate fan speed controller (rheostat), which is not included.

These units are made from the highest quality materials for a long life and great utility even in the harshest workshop or greenhouse environments. Each unit comes pre-drilled with mount points for quick and painless installation. These units are most commonly used as ceiling mounted air handlers in: work shops, garages, warehouses, and greenhouses. They can also be used as dry chillers when outdoor temperatures are adequately lower than process temperatures, eg: to directly chill irrigation water, or to help cool chilled glycol/water loops for other heat exchange applications using free cooling capacity from the great outdoors.

Each unit comes with an unbeatable lifetime warranty against manufacture defects with the heat exchanger.

* Note: These units require 110/120V power supply; so they can be controlled with a 110V thermostat, or alternatively be used with simple On/Off switch or even plugged directly into a standard 110/120V outlet.

* Note: This unit does include cord, but can easily be rewired to a longer/extension cord -- basic wiring diagram/instructions will be provided.


  • Single-speed Motor
  • Low power consumption!
  • Pre-drilled mounting holes.
  • Sealed electrical housing, includes compression-fit silicone gasket.
  • Pe-installed terminal block for easy installation (no soldering or wire caps required!).
  • Easily serviced motor housing -- for easy motor maintenance, and access to clean heat exchanger.
  • Generous heat exchanger surface area.
  • Durable galvanized steel housing.
  • 3-year limited warranty against factory defects. (Limited to defective part replacement.)


  • Capacity: 12,500 BTU (Cooling w/ 30F dT) & 50,000 BTU (Heating w/ 120F+ dT)
  • Ports: Single-pair 1 inch copper ports (not threaded)
  • Power: 100W / 0.83A @ 120V
  • Fan: 1-speed / 700 CFM
  • Heat Exchanger: 12"x12" Air-to-water Heat Exchanger
  • Max Pressure: 175 PSI
  • Max Temperature: 350F
  • Decibels: 66dB @ 1'
  • Width: 15 ¾"
  • Height: 12"
  • Depth: 13 ½" (including fan housing)
  • Product Weight: 24
  • Shipping Weight: 24

Product Manufacturer 

Zephaire - Air to Water Heat Exchangers

Zephaire - Air to Water Heat Exchangers

Zephaire Air to Water Heat Exchangers (unit heater/cooler) are designed for maximum utility, value, and unrivaled reliability in even the harshest of environments. Whether you're adding climate control for your garage, a commercial greenhouse, or augmenting the heating and cooling in your home, you'll find everything you need in one of our Zephaire Air to Water Heat Exchangers!

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