A friend gave me some mint, and didn't mention what type it is. How can I tell if it's spearmint, peppermint, apple mint, lemon mint, or some other variety? I googled some pictures, but quite frankly, all the pictures look very similar -- four leaves growing from the center which a textured leaf and a rich, green colour.
A water source air-conditioner or heat pump is a variation of a traditional air source heat pump. The explanation that follows first describes how a cooling-only water source air-conditioner. works. A description of a heat pump (heating and cooling) will follow.
A heat pump extracts heat and moisture from this airstream, and transfers the heat to the domestic hot water. This system provides mechanical ventilation as well as hot water. Energy use of a conventional electric water heater can be reduced by 40% if it is supplemented by a ventilation heat recovery system.