ERV vs HRV

[Riven]

大家觉得哪个更适合渥太华? 普遍选的是哪个?

 

[heureux]

这两个是什么东东啊？

http://en.wikipedia.org/wiki/ERV

http://en.wikipedia.org/wiki/HRV

 

[cmah]

追个时髦： 关注，同问。

 

[Riven]

这两个是什么东东啊？

http://en.wikipedia.org/wiki/ERV

http://en.wikipedia.org/wiki/HRV

换气设备

 

[cmah]

换气设备

原来是高处不胜寒。。。俺撤了。

 

[陪你去看龙卷风]

我家穷，不透气的话就开窗户

 

[Riven]

我家穷，不透气的话就开窗户

零下30度,你怎么开阿?

 

[阿土仔]

零下30度,你怎么开阿?

老大，可以把脑袋伸出门外换气呀。

 

[Riven]

老大，可以把脑袋伸出门外换气呀。

 

[陪你去看龙卷风]

零下30度,你怎么开阿?

门一开，风一吹，一股空气起来了
门一关，气不换，一代坛主过去了

你可以出去遛狗啊

 

[小傻]

大家觉得哪个更适合渥太华? 普遍选的是哪个?

In Ottawa, seems like this is a no brainer

If you use a heating system more often than air conditioning, you need an HRV. If the opposite is the case, an ERV is recommended.

http://www.terrytownplumbing.com/indoor-air-quality/hrv-vs-erv.php

 

[Riven]

In Ottawa, seems like this is a no brainer

If you use a heating system more often than air conditioning, you need an HRV. If the opposite is the case, an ERV is recommended.

http://www.terrytownplumbing.com/indoor-air-quality/hrv-vs-erv.php

那你解释一下:

ERV:
In some cases, ERVs may be suitable in climates with very cold winters.If indoor relative humidity tends to be too low, what available moisture there is in the indoor exhaust air stream is transferred to incoming outdoor air.

ERVs also allow the exchange of moisture to control humidity. This can be especially valuable in situations where problems may be created by extreme differences in interior and exterior moisture levels. For instance in cold, heating-dominated climates, better air flow and the introduction of humidity to the indoor environment can help control wintertime window condensation. In humid summer climates which are cooling dominated, it can be critical to dry out incoming air so that mildew or mold doesn't develop in ductwork.

 

[小傻]

那你解释一下:

ERV:
In some cases, ERVs may be suitable in climates with very cold winters.If indoor relative humidity tends to be too low, what available moisture there is in the indoor exhaust air stream is transferred to incoming outdoor air.

Check with Martin ah...he is an expert and even better than consumer report

I got this opinion from my neighbor - People try to sell you ERV because it is more expensive than HRV system..I trust him so I picked up HRV

 

[Riven]

Check with Martin ah...he is an expert and even better than consumer report

I got this opinion from my neighbor - People try to sell you ERV because it is more expensive than HRV system..I trust him so I picked up HRV

You are really a no-brainer.

 

[uglyducking]

ERV can dehumidify moisture air during summer time to offload your A/C to keep your house in a comfortable humidity level. HRV will bring in humid air in summer time while add load to your A/C.
Both ERV/HRV are not recommended to run when outside temperature below -25 degrees.
New energy star/R2000 house has no exhaust fan in bathroom and only rely on ERV/HRV to exchange the air. In winter it's Ok but in summer it could be an issue when it's very humid outside.
I will go with ERV next time.