The compact design of the Microchiller 18 makes it ideal for installation in small spaces. Its modular design allows for convenient expansion of the 18,000 BTU of cooling power. The Microchiller 18 is pre-charged with powerful R410a refrigerant, which is also environmentally friendly. The digital controls are easy to use, while the robust stainless steel construction is both easy to maintain and tough enough for use in harsh marine conditions. The "Smart Start" smooths out the start-up power demand and avoids potentially damaging spikes in current. The Microchiller 18 can heat or cool air for year-round comfort!