Hot Gas Bypass / Hot Gas Reheat
The commercial Envision series, the most advanced water source heat pump on the market today, is now available with hot gas bypass and/or reheat. The AlpinePure hot gas bypass option is designed specifically to limit the evaporating pressure in the cooling mode to prevent the evaporator coil from forming ice.

Merv 11 Filters
AlpinePure MERV 11 filters are available in both 2 in. and 4 in. sizes. MERV (Minimum Efficiency Reporting Value) Other pollutants like pollen, smog, plant spores, tobacco smoke, and bacteria are creating health problems ranging from dizziness to asthma. As a result, WaterFurnace is continuously adding to and improving its indoor air quality line of products to protect your family's health AlpinePure MERV 11 filters are available in both 2-inch (211) and 4-inch (411) sizes. MERV (Minimum Efficiency Reporting Value) is an industry standard which rates the ability of a filter to trap particles 0.3 to 10.0 microns from the air we breathe. Most ordinary, inexpensive filters found at hardware stores are MERV 4 or lower--they are simply ineffective in capturing smaller particles. In addition, AlpinePure 211 and 411 filters are pleated to increase the surface area allowing for more holding capacity and less frequent replacement. The AlpinePure 411 comes housed in a filter frame that includes a 1-inch slot for the optional high efficiency
AlpinePure Carbon Filter.

AlpinePure Carbon Filter
The AlpinePure 411 can also eliminate odors and other air contaminants with the addition of its optional high efficiency AlpinePure Carbon Filter. The key to this filter's excellent performance is its tightly bonded carbon granules that capture the odors from the return air. The carbon filter uses this innovative technology to effectively remove new home smell, cigarette smoke, and pet odors. Plus, the filter fits nicely in the 411 housing, and is easily accessed for its 3-month replacement. With its impressive odor removal capabilities and ease of replacement, the carbon filter is a must have for AlpinePure 411 owners. .