Single Room Air-to-Air Heat Pump Air Conditioners
Air-to-air of Air-to-water Heat pump?
Air-to-air heat pump consist of an outside unit connected with 1 to 5 highly controllable indoor heaters. The systems like this are relatively cheap to install and run, easy to manage, and require no plumbing because they don’t use radiators. In addition, they are not only cheap to run, but they also work as air conditioners on hot days. The competitive air-source (or air-to-water) heat pumps with a hot water cylinder and heating radiators are proved much more expensive to run and more troublesome to maintain. The heat pump itself is OK but the problems are with the control systems and the fact that hot water has to be stored at a higher temperature than the heat pump produces, which requires the use of direct electric heating in the hot water cylinder. All these mean that air-to-water heat pumps are more expensive, despite the grant.
You may say that air-to-air heat pumps do not produce hot water. Fortunately, it is no so - see our 1-3-room air-to-air-heating & cooling and hot water systems. In spite of availability of large air-to-air heat pumps even with water heating the best their applications are for small small residential, travel, office, and shop applications.
