Thanks for that Alkers86. My house is a 1980's build and I've done a fair bit of diy work (plugging draughts, adding more attic insulation etc.) plus installing double glaze windows throughout but it would not be considered "airtight" compared to modern build standards. I do have extractor fans in bathroom (no window to outside) and kitchen but I'm not sure what you mean by "continuously operating"? From what you say it appears that the Aereco units don't suit. I'm looking for something just a bit better than the existing plastic grille covering a hole in the wall so that when you slide over the cover to close it there's no draught.In order for these vents to function as intended you need to have continuously operating extract vents in wet rooms (kitchens and bathrooms). These should be humidity controlled also so they are only extracting a low air flow most of the time but when high humidity is detected, they will increase the fan speed. This causes fresh air to be drawn in through the Aererco wall vents. You're also supposed to ensure a 2cm air gap underneath internal doors to facilitate air flow between rooms. For this to be effective, you need to have a reasonably airtight house or the extract fans will just cause air to be drawn in through other areas. In the absence of these extract fans, the aerecco units are not likely to provide sufficient ventilation
I'm looking for something just a bit better than the existing plastic grille covering a hole in the wall so that when you slide over the cover to close it there's no draught.
Thanks Leo, that looks more like what I want. Tbh I wasn't thinking of humidity at all, just preventing draughts when the air vents are in closed position. I leave them open I'd say 95% of the time at least. It's just at the coldest and windiest times that I close over the grille.
also can these be painted?
They don't need powerdo these need power?
we have an a3 rated house with this ridiculous hit and miss vents i wouldnt mind replacing them,
also can these be painted?
Continuously operating as in the extractor fans need to be running slowly to encourage airflow in the house. They do this silently but speed up whenever there is high humidity. Without the extractors running, you'd get very little airflow in through the aereco units.Thanks for that Alkers86. My house is a 1980's build and I've done a fair bit of diy work (plugging draughts, adding more attic insulation etc.) plus installing double glaze windows throughout but it would not be considered "airtight" compared to modern build standards. I do have extractor fans in bathroom (no window to outside) and kitchen but I'm not sure what you mean by "continuously operating"? From what you say it appears that the Aereco units don't suit. I'm looking for something just a bit better than the existing plastic grille covering a hole in the wall so that when you slide over the cover to close it there's no draught.
I never knew about continuously running extractor fans. Earlier this year I installed new extractors in my kitchen and bathroom so I'm not going to change them now. I live in a small two bed townhouse so I think the type that Leo has mentioned will be sufficient to install in an 11mtr2 bedroom.Continuously operating as in the extractor fans need to be running slowly to encourage airflow in the house. They do this silently but speed up whenever there is high humidity. Without the extractors running, you'd get very little airflow in through the aereco units.
I live in a small two bed townhouse so I think the type that Leo has mentioned will be sufficient to install in an 11mtr2 bedroom.
How exactly is the free area calculated?
I think I'll get this one as it has a quoted free area of 100sqcm. It should just about fit.rental property demand a minimum 65sq cm free area!
I assume this is for passive ventilation only, the aereco units get aware with the lower amount as they require the constantly running extractors as explained aboveJust to note that the standards (p24) for rental property demand a minimum 65sq cm free area!
I assume this is for passive ventilation only, the aereco units get aware with the lower amount as they require the constantly running extractors as explained above
the aereco units get away with the lower amount as they require the constantly running extractors as explained above
I don't know for sure but I think Alkers assumption is a logical and reasonable one. Also, as he said in his reply to my original post you'd need to have a reasonably airtight house with airgaps at the bottom of all internal doors. If I was going for a deep retrofit then I'd install the Aereco vents along with continuously operating air extraction fans in bathroom and kitchen. But I'm not doing that, so I won't install them. However, thanks to both of you I've learned something about the importance of airflow in a house and as a result I'm removing the "brushes" I attached to the bottom of the internal doors.believe it or not the regs make no reference to active Vs passive!!
I don't know for sure but I think Alkers assumption is a logical and reasonable one.
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