您的leed白金示范房的供热和供水系统是什么?
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Can I see details about the heating and domestic hot water systems of the Edelweiss house?
August Wehrmann
March 10, 2019Last updated: Aug. 3, 2020
我在CaGBC网站上看到一篇关于雪绒花房子的文章，上面写着“循环辐射地板和空气源热泵”。你能发布更多使用哪些系统的细节吗?例如，是否使用空气源热泵来加热辐射地板中的液体?如果不是，使用什么系统?还有，家用热水采用什么系统?
Thanks
Theradiant flooris heated with anelectric boiler, it is a separate system than theheat pump. The intention of theheated flooris primary to ensure comfort and happy feet, theair-source heat pumpis far more efficient and so we rely primarily on that to heat the air of the home.
Thedomestic hot wateris a heat pump as well, we used anAO Smith air-to-water hybrid heat pump. The water heater sucks in the air from the home (which with the heat pump is generated more efficiently and affordably than by the floor) and so it in turn transfers that ‘efficiency’ to the water heater.
An even greater benefit is in the summer months as the water heater in effect acts to cool the air in the house, so much so that most summers the air-source heat pump is actually never operated for cooling.
A greater explanation can be found on the following pages
In our case the primary heating system of this house is the sun, since over 50% of the heat load is provided by passive solar heating. Therefore, a portion of the domestic hot water is also effectively solar heated. And due to the shading, extreme insulation and airtight envelope, the cooling needs are also dramatically lower than a code-built house, so the cooling provided by the heat pump water heater as it extracted heat from the air was all that was needed to keep the home comfortable in the summer months. That means no additional cost for cooling, and also no additional wear on cooling equipment.
你的论点很好，但所有的情况都是不同的，而且经常会有像上面这样的附加好处。也就是说，我们不会在每种气候、每种电网电源或每种家庭设计中对这种加热策略给出一个笼统的建议。相反，我们也不会全盘否定它，因为在这种情况下，从经济和生态的角度来看都有切实的好处。詹姆斯，谢谢你分享你的想法。