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Post by msimanyi on Jan 6, 2024 12:59:51 GMT -5
thezone You said the top vent exhausts into the roof cavity. Do you mean into the attic? Or is it literally into the area between the rafters of your roof construction? And if it's the latter, is *that* in any way vented? The big issues here are (a) where is the exhaust venting, and does it have clear flow out of that space and (b) is that exhaust vent area part of your conditioned space or is it unconditioned? If it's the latter, you might be causing some problems for the structure. (Warm, relatively moist air coming into contact with cold surfaces causes condensation and, eventually, mold and other problems.)
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Post by thezone on Jan 6, 2024 18:53:24 GMT -5
What people forget the best way is cool air intake and hot air exhaust is the most effective way to manage the airflow to keep things cool. So if cabinet doors are the deal here at least leave them open for the intake and have the fans exhaust the hot air. If cabinet doors to be closed, then you need an intake fan and exhaust fan system. The cupboard door needs to be closed otherwise it blocks the hallway. Is an intake fan also necessary? I would have thought as long as there is a grille that an exhaust fan would be sufficient. |
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Post by thezone on Jan 6, 2024 19:00:48 GMT -5
thezone You said the top vent exhausts into the roof cavity. Do you mean into the attic? Or is it literally into the area between the rafters of your roof construction? And if it's the latter, is *that* in any way vented? The big issues here are (a) where is the exhaust venting, and does it have clear flow out of that space and (b) is that exhaust vent area part of your conditioned space or is it unconditioned? If it's the latter, you might be causing some problems for the structure. (Warm, relatively moist air coming into contact with cold surfaces causes condensation and, eventually, mold and other problems.) Thanks for the comments. The top vents into the roof cavity (I live in Adelaide, South Australia we don't have attics), it's quite a big space its a 200m2 house (about 2100sqft) and I can almost stand up in the roof cavity. It is an "unconditioned" space but the air from inside the cupboard wouldn't be moist like from a bathroom where there is steam so I don't see this being an issue, it's a very small cupboard and it's a very big roof cavity and most of the year our climate is hot and dry. |
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Post by msimanyi on Jan 10, 2024 23:58:24 GMT -5
Keep an eye on dew points and temps, both interior and in the roof cavity. (Something like Sensorpush devices, if they're available to you, are a decent solution. Batteries last a couple years for me.)
If your exhaust air's dew point exceeds the roof cavity's temp, you could be causing a condensation issue. A few times a year won't be an issue, but if you have it out of balance for a number of sequential days I would suggest a visual inspection of the cavity at least once during the colder days to see if there's a condensation problem developing, and again after the cold / moist season to look for any mold.
It does sound like the large space should provide a good "thermal sink" for the exhaust temps and almost has to be vented, so I can't imagine it causing a problem venting the heat away from your electronics.
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