My question concerns the best way to ventilate a remodeled post-and-beam open plan house.
我们将我们的后束房屋缩减到梁上，并将其重新建立又重新推出，但没有墙壁，除了两个浴室中的墙壁。房子900平方英尺，附着日光浴室为200平方英尺。有一个阁楼区占地面积约60％。我们有一个大教堂天花板，在Shiplap天花板（显示暴露的梁）和屋顶护套之间有6英寸的封闭泡沫保温（类似于FHB O / N 2007中所示的屋顶护套）。墙壁将有3个1/2英寸的封闭泡沫绝缘。
管道用楼上的浴室堆叠在楼下的浴室（自身是洗衣柜旁边）。
As I indicated, the house plan is completely open. I read with great interest the comments on ventilation options, but my situation is slightly different from that of other questioners.
The house is located in Southern Maine about 15 miles inland from the coast.
我应该只使用浴室排气的浴室排气或HRV系统，浴室排气，还有一些单独的HRV，还是其他选择？
GBA Detail Library
A collection of one thousand construction details organized by climate and house part
Search and download construction details
Replies
I forgot to mention that we will be using hydronic radiant heat in the downstairs floors.
Jonathan,
It sounds like you are undecided between an exhaust-only ventilation system and a balanced system using an HRV.
As I wrote in my blog about ventilation options (//m.etiketa4.com/blogs/dept/musings/designing-good-ventilation-system), exhaust-only systems can work well in a small house with an open plan, like yours. An HRV system will cost more to install, but will provide heat recovery and will provide a system that does a better job of distributing fresh air evenly.
If you are worried about where to locate the ventilation ducts, they can be boxed in or exposed. Many commercial jobs use exposed ductwork -- for example, spiral metal duct.
Jonathan,
It will no doubt cost much more for ducting and equipment if you decide to go HRV.
At least your home sounds simple...and potentially tight.
Perhaps the cost of ducting(labor & material) would not be so great?
What if you "pre-Ducted" and prewired for an HRV?
The incoming air duct and exhaust ducts would need to cross near each other.
Or... at the very least provide yourself a path so that you or a future owner could add Energy Recovery in the future...
equipment will improve and prices should come down.
Thank you both for your answers. Would you advise me to exhaust the bathrooms separately from the HRV system? The way the house is laid out I might be able to make both systems simpler than if I combined them -- but I could use the bathrooms as the intake for the HRV.
Jonathan,
The exhaust air for an HRV system is always drawn from the bathrooms (and sometimes the laundry room) of a home. The question was recently discussed at length here:
//m.etiketa4.com/community/forum/general-questions/13968/bathroomlaundry-vents-through-hrv
Another reason that "combining" makes sense to me is that it reduces the number of "openings"...
Combining and reducing plumbing vent stacks is good too.