Heat Recovery
Heat recovery ventilation, also known as HRV, mechanical ventilation heat recovery, or MVHR, is an energy recovery ventilation system using equipment known as a heat recovery heat exchanger, air exchanger, or air-to-air heat exchanger which employs a counter-flow heat exchanger between the inbound and outbound air flow. HRV provides fresh air and improved climate control, while also saving energy by reducing heating (and cooling) requirements.
The whole house heat recovery system combines supply and extract air using the latest technology of low watt fans providing high resistance and low noise in a very compact unit. Tempered air is delivered into “living” areas whilst extracting moisture-laden air from “wet” areas, such as bathrooms and kitchens. The result is a comfortable and healthy living environment with reduced power consumption and lowering operating costs.
Benefits
As building efficiency is improved with insulation and weather stripping, buildings are intentionally made more airtight, and consequently less well ventilated. Since all buildings require a source of fresh air, the need for HRVs has become obvious. While opening a window does provide ventilation, the building's heat and humidity will then be lost in the winter and gained in the summer, both of which are undesirable for the indoor climate and for energy efficiency, since the building's HVAC systems must compensate. HRV introduces fresh air to a building and improves climate control, whilst promoting efficient energy use.