Chauffage central à eau chaude / Diesel, Gaz et Pompes à chaleur
12 février 2014Les systèmes de chauffage central à eau chaude utilisent l'eau pour répartir la chaleur de manière complète et uniforme dans la maison. L'eau transfère l'énergie à un taux beaucoup plus élevé que l'air. rendant ces systèmes très efficaces.
Les chaudières à combustion brûlent un combustible (gaz, diesel ou granulés/bûches de bois) et transfèrent de l'énergie dans
l'eau. Ils sont idéalement utilisés pour chauffer des radiateurs, qui nécessitent généralement des températures élevées.
In New Zealand, gas and diesel-fired boilers are the most common types. There is little difference between gas- and diesel-fired boilers in terms of performance, safety, and technical or spatial requirements Both are highly efficient and clean burning, and designed with absolute safety in mind. The choice between gas and diesel is usually based on the comparative cost and the availability of the two forms of fuel.
Another type of heat source is a heat pump (also described above under COP efficiency measurement). Heat pumps are an extremely energy efficient form of space heating and
cooling. In New Zealand, most heat pumps are installed to provide heating—cooling Ins been a secondary function.
Air-to-air heat Pumps (the most common type) use refrigerant to absorb heat from one space and transfer it to another via a heat exchanger (often a in or coil). Optimum efficiency is achieved at outdoor temperatures above 6-7°C. Some models man still provide heating in temperatures as low as -15°C.