空气加热 VS 辐射加热

强制通风系统

Comfort, energy efficiency and safety are major issues when choosing a heating method for a home. Likewise, the cost and expected service life of the equipment also play a part.
When it comes to boiler vs furnace, the lower cost of installing and maintaining a furnace is its primary advantage. Furnaces are also relatively simple to use and require only a few basic operating components. They are also energy efficient, especially when used in conjunction with a programmable thermostat. Lastly, forced air systems can be used as an all-in-one HVAC system to heat and cool your home whereas boilers utilizing radiant heat can only be used for heating.Forced-air has become the standard for heating multi-room residences and the widespread adoption of this heat source is in itself one of its advantages. On the other hand, we’re accustomed to noisy fans kicking on and off, being too hot upstairs and too cold downstairs, wrapping ourselves in extra layers only to strip them off a short time later, and constantly adjusting the thermostat to try and keep comfortable.

在为家庭选择加热方法时，舒适性，能效和安全性是主要问题。同样，设备的成本和预期使用寿命也起到一定作用。
在锅炉与炉子方面，安装和维护炉子的成本较低是其主要优势。炉子使用起来也相对简单，只需要几个基本的操作部件。它们也是节能的，特别是与可编程恒温器配合使用时。最后，强制通风系统可用作一体化HVAC系统来加热和冷却您的家庭，而利用辐射热的锅炉只能用于加热。强制空气已成为加热多房间住宅的标准这种热源的广泛采用本身就是其优点之一。另一方面，我们已经习惯了吵闹的粉丝开关，楼上太热，楼下太冷，我们将自己包裹在额外的层中，以便在短时间内脱掉它们，并不断调整恒温器试图保持自在。

优点:

只有HVAC系统进行加热和冷却。
只要定期更换滤芯，就可持续改善空气质量。
管道系统中的全屋加湿器可保持适当的室内湿度。

缺点:

容易漏气，如发生漏气加热销量就会降低。
可能出现空气热量分布不均匀的情况。
空气替换可以刺激起家中的过敏原。
机器运行会产生较大的噪音。

水力系统

Hot water radiant systems, also called hydronic heating, use heated water circulating through PEX (cross-linked polyethylene) tubing. The tubing is embedded and installed with PEX piping tools in mortar or in extra thick plywood sub-floor panels that have pre-cut channels for holding the tubing in place. The plywood method can’t be used under nail-down flooring like hardwood.Radiant heating systems supply heat directly to the floor or to panels in the wall or ceiling of a house. The systems depend largely on radiant heat transfer — the delivery of heat directly from the hot surface to the people and objects in the room via infrared radiation. Radiant heating is the effect you feel when you can feel the warmth of a hot stovetop element from across the room. When radiant heating is located in the floor, it is often called radiant floor heating or simply floor heating.

热水辐射系统，也称为水力加热，使用通过PEX（交联聚乙烯）管道循环的热水。管道嵌入并安装在砂浆中的PEX管道工具或特厚的胶合板底板中，这些板具有用于将管道保持在适当位置的预切通道。胶合板方法不能像硬木那样在钉地板下使用。辐射加热系统直接将热量供应到地板或房屋墙壁或天花板中的面板。这些系统在很大程度上取决于辐射热传递 – 通过红外辐射将热量直接从热表面传递到房间内的人和物体。当您感受到整个房间内热炉灶元素的温暖时，您可以感受到辐射采暖的效果。当辐射加热位于地板中时，通常称为辐射地板加热或简单地板加热。

优点:

为较冷的房间增加热量。
不会将过敏原分散到室内。
维修与重建更方便。
运行安静无噪。
高效。

由于以下原因辐射热更有效:

能量使用和寄生损失
由于管道工作的固有缺陷和不完美，热量从系统中流失，并流失到你房子的未知部位，而房间内的空气压力增加会增加挡风雨条的压力，导致泄漏。此外，在辐射系统中，鼓风机通常需要9倍于泵的电量。
Lower Ceiling Temperatures
Heat doesn’t rise – but hot air does. It’s the primary reason why so much insulation is used beneath the roof. In a forced air system, hot air his pumped into a room and rapidly rises to the ceiling which can cause a temperature swing of 10 degrees between the ceiling and the floor. This air stratification becomes worse in rooms with high ceilings. In a two-story home, the upstairs can be stifling hot while downstairs is too cool.
较低的天花板温度
热量不会升高 – 但热空气会升高。这是在屋顶下使用如此多绝缘材料的主要原因。在强制通风系统中，热空气被泵入房间并迅速上升到天花板，这可能导致天花板和地板之间的温差达到10度。在天花板较高的房间里，这种空气分层变得更糟。在一个两层楼的房子里，楼上的房子可能很热，而楼下的房间太冷了。
Zoning reduces energy usage
Most forced air homes have a single thermostat to control the temperature of the entire home. These “single zone systems” are the norm because forced air is inherently difficult and expensive to control. The result is inconsistent comfort – some rooms too cool, others too hot, and rooms in direct sunlight overheat depending on the time of day.
分区可减少能源使用
大多数强制通风房都有一个恒温器来控制整个房屋的温度。这些“单区系统”是常态，因为强制通风本身就很难控制并且成本很高。结果是不舒适 – 一些房间太酷，另一些房间太热，房间在阳光直射下过热，这取决于一天中的时间。大多数使用强制通风系统的家庭都只有一个恒温器来控制整个家庭的温度。这些“单一区域系统”之所以成为常态，是因为强制空气本身就很难控制，而且控制成本高昂。其结果是舒适度不一致——一些房间太冷，另一些太热，而在阳光直射下的房间会因时间的不同而过热。
Lower air temperatures for the same comfort
Even on a cool, windy day, we can feel warm as the sun shines upon us. This is because the radiant heat from the sun allows us to be comfortable even with low air temperatures. The same is true in your home. With the warmth emanating from a radiant floor, you experience greater comfort with the thermostat set lower than those in a forced air home.
降低空气温度同样舒适
即使在凉爽，刮风的日子，我们也可以感受到阳光照在我们身上的温暖。这是因为来自太阳的辐射热使我们即使在低气温下也能感觉舒适。你家也是如此。从辐射地板散发出温暖的感觉，温控器的设置比强制回家的温度低。