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Questions tagged [ventilation]

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5
votes
1answer
49 views

Heat Recovery Ventilator HRV, metal vs paper core?

Which one is more efficient and has longer operating life, thin metal or nano paper core in a HRV? It will be used in a Nordic country. TL;DR I'm searching for a heat recovery ventilator. I am not ...
1
vote
1answer
51 views

Mechanical damper built in to vent fan?

Are there any bathroom fans or range hood fans that have a mechanical damper built in that fully seals when the fan is turned off? In other words, it shouldn't let any air in OR out when the fan is ...
4
votes
1answer
213 views

Best way to vent smoke from stove, without room for a hood

I want to vent smoke, such as roasting coffee smoke and cooking grease out of my kitchen. I do not have a hood, nor is there room to install one due to cabinet and window placements just above the ...
6
votes
1answer
161 views

MVHR no longer the ventilation of choice in some Nordic countries?

We've covered Mechanical Ventilation with Heat Recovery (MVHR) before here, and it's been the ventilation method of choice for Passivhaus buildings for many years. But I heard something interesting ...
62
votes
10answers
11k views

What is an energy efficient way to get fresh air indoors during winter?

Letting some fresh air inside is always a good idea, but during the winter it seems a bit wasteful to fling open the window and let the fresh air in at the expense of all that hot air going out, and ...