Although a heat pump can heat a home, when outside temperatures drop below freezing, the efficiency of a heat pump is affected as the unit requires more energy to maintain warm temperatures inside the home. Typical heat pump systems have an auxiliary electric heater added to the indoor unit to add supplemental heat when outdoor temperatures drop
听说空调可以换成heat pump,用电的,这种heat pump适合比较干热的地区吗?买起来比一般的ac furnace便宜吗?
Although a heat pump can heat a home, when outside temperatures drop below freezing, the efficiency of a heat pump is affected as the unit requires more energy to maintain warm temperatures inside the home. Typical heat pump systems have an auxiliary electric heater added to the indoor unit to add supplemental heat when outdoor temperatures drop
https://www.carrier.com/residential/en/us/products/heat-pumps/heat-pumps-vs-air-conditioners/?
除非另有定义,一般heat pump, 或热泵是指同一机器,通过阀门控制冷媒在机器里的流动路径,从而在屋内出风口流出冷风或暖风,达到夏天和冬天对室温的不同要求。这种机器运用得非常普遍。比如旅馆,由客人自己调节室温,同一季节,同时满足西伯利亚来的怕热旅客和来自非洲怕冷的客人。
机器功率按夏天空调需要设计,冬天取暖稍嫌不够,为应付大冷天,一般还有电热丝辅助取暖。另外,冬天机器外面的冷媒盘管,有时会结霜结冰,需要加热化掉,类似无霜冰箱的自动化霜,所以要额外消耗一点能源。
二机合一,优点不用多讲。但我不推荐,因为这机器全年无休,寿命短。就算价钱比二台机器价钱加起来要便宜,但容易坏,坏了空调,暖气也不工作。我对“万能机”很感冒。所以很少用万能电表,量电压就用电笔,要想好照片,就用正儿八经的照相机,手机拍照是万不得已。
现在都用天然气,这是一级能源,而电是二级能源,转换过程就有损耗。
取暖用天然气或燃油,比较经济,但污染点分散,难控制。
制冷用电,那是受机器限制,用天然气的空调机不便宜。
If under 32F, efficiencies down a lot. Most of them still work, only one older house can't work well under 32F. 所在地,NC FL
Condo unit, water source heat pump, water loop通到HOA的Cooling Tower。现在运行还可以,偶然有些小修,不过已经是10年以上的系统了,一定时候要换的。不知道到换的时候有哪些options.
1. 不用Heat Pump, 用分体的好像不行,很难让HOA批准在墙外挂unit
2. 窗式空调有同样问题HOA
3. 更换核心部件(Compressor, condensor, evaporator), 保留fan and duct, 不知道是不是可行
请有经验的地主们分享一下,谢谢