We do also have more complex systems that are used for space heating and they fall into two categories, passive and active heating systems.

我们确实也有更复杂的系统用于空间供暖，它们分为两类，被动供暖系统和主动供暖系统。

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Space heating means heating the space inside a building.

太阳能供暖指的是给建筑物内部加热。

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These systems are frequently used for space heating and water heating.

这些系统经常使用于空间供暖与水的加热。

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"When solar panels supply both hot water and space heating, the goal of zero emissions begins to look achievable."

VOA: special.2009.03.25

The camper did not have any heating equipment to warm the space while family members slept.

VOA: special.2010.02.02

In some instances, microCHP systems have attempted to use waste heat for residential space heating.

FORBES: Combined Heat and Computing: The Big Green Story for 2012?

Micro-CHP encompasses a spectrum of energy technologies that produce heat (which can be used for space heating and hot water) and electric power simultaneously.

FORBES: Micro-CHP Called 'Critical' to UK's Energy Future

In the United States, solar waters heaters generally sit atop individual homes and businesses, and the hot water is seldom used for space heating.

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