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Rants etc.....

SugarJ said:
In BC we have to have at least one exhaust fan hot-wired to run 24/7 for air exchange to pass inspection. When I added my basement suite they made me wire the fan down there the same way, with a jumper wire across the switch. Maybe this was the intent, just executed poorly?
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JD said:
Do you also have some sort of vent that stays open then to pull in outside air? Otherwise seems a bit odd to rely just on a bathroom fan to pull enough pressure to bring in air through all the various cracks in a house. Surprised ERV/HRV isn't required out there.
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Maybe? It's not something I've ever heard of in Alberta, especially given that forced air is the norm out here, I could see it with a baseboard or radiant system since there's no real airflow other than convection. If a person was going to do that I can't imagine you'd wire it with a switch and then jumper hots after the switch though. Original home inspection was over 20 years ago, so I don't think that was the likely cause.

Shadowmeph said:
yikes all those wires
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It looked worse in person haha. Admittedly, it would always be a busy box with incoming having to go to two switches (light+fan), then an exit wire for the fixture and fan assembly and another exit for the line going to the next bathroom upstairs, but they could have definitely tidied it up (or not painted half the wires etc)
 
Izerous said:
I have an M54 3.0L torn apart in the garage I do understand you pain working on a BMW.
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I'm quite familiar with that engine hehe. Did all the CCV and hoses over the weekend as I've been hunting stalling gremlins ever since swapping a 3.0l into my 325i wagon. Turns out, there was also 1 wrong injector (black top). Got a spare purple top and put it all back together. I still have some gremlins, thinking the oil rings are gummed up and I'm getting oil on the pistons. Oddly it doesnt seem to smoke/burn oil but it has high consumption and already ruined one set of Cats :(.
 

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JD said:
Do you also have some sort of vent that stays open then to pull in outside air? Otherwise seems a bit odd to rely just on a bathroom fan to pull enough pressure to bring in air through all the various cracks in a house. Surprised ERV/HRV isn't required out there.
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Yes, we have cold air intakes that run from the outside to the furnace room.
 
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I've bought hundreds of things from Aliexpress over the years. Never really had an issue with receiving goods. Until until maybe 8 months ago. Unless it was shipped by Aliexpress, I haven't received a damn thing. Literally every other item gets lost.
 
lowfat said:
I've bought hundreds of things from Aliexpress over the years. Never really had an issue with receiving goods. Until until maybe 8 months ago. Unless it was shipped by Aliexpress, I haven't received a damn thing. Literally every other item gets lost.
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I've had issues with AliE...DHGate has been okay but Temu...never an issue in the 2 years my wife has been buying from there.
 
FreeKnight said:
Maybe? It's not something I've ever heard of in Alberta, especially given that forced air is the norm out here
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A forced air system circulates air within the house, but generally doesn't do anything to bring in "fresh" air to replace the "stale" air. Maybe since the house is older, the poor insulation/air sealing meant that the bathroom fan was indeed enough to pull air in through all the various cracks? I can't really imagine having an "open" vent in the basement in Alberta though, temperatures get way too cold for that to make any sense. There are some electronically controlled ones, but still, you'd be dealing with major condensation issues.

It surely sounds like it was done intentionally though.
 
JD said:
A forced air system circulates air within the house, but generally doesn't do anything to bring in "fresh" air to replace the "stale" air. Maybe since the house is older, the poor insulation/air sealing meant that the bathroom fan was indeed enough to pull air in through all the various cracks? I can't really imagine having an "open" vent in the basement in Alberta though, temperatures get way too cold for that to make any sense. There are some electronically controlled ones, but still, you'd be dealing with major condensation issues.

It surely sounds like it was done intentionally though.
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Wouldn't be an open vent but a make up air damper.

But having an exhaust fan running 247 makes little sense to me. Especially on newer construction that is less leaky.
 
JD said:
A forced air system circulates air within the house, but generally doesn't do anything to bring in "fresh" air to replace the "stale" air. Maybe since the house is older, the poor insulation/air sealing meant that the bathroom fan was indeed enough to pull air in through all the various cracks? I can't really imagine having an "open" vent in the basement in Alberta though, temperatures get way too cold for that to make any sense. There are some electronically controlled ones, but still, you'd be dealing with major condensation issues.

It surely sounds like it was done intentionally though.
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Most of the ones here have a damper (like Lowfat mentioned) mine is an insulated one off the furnace IIRC.
lowfat said:
Wouldn't be an open vent but a make up air damper.

But having an exhaust fan running 247 makes little sense to me. Especially on newer construction that is less leaky.
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Some of the older exhaust fans are explicitly not meant to run 24/7 IIRC they used to recommend being connected to a timer to avoid burning them out. Not sure about modern fans though.

I'm assuming it was an error, bad tech, weird flawed repair by the previous owner or something. I've never seen it in a house in Alberta before.

Either way, it's fixed now, and I just have some central vac piping to finish and I'm basically done until I get drywall downstairs.
 
lowfat said:
But having an exhaust fan running 247 makes little sense to me. Especially on newer construction that is less leaky.
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Still need to remove CO2, VOCs, radon, moisture, etc from the house though, less leaky houses are worse in that sense unless there's mechanical air exchange.

...then you have something like my old 1950's double-brick bungalo... no insulation... and all the sun from the day heats the bricks which gets released inwards at night. Sitting here sweating after a warm rainy evening even though the daytime high was only about 20C. Probably have to turn on the AC to sleep.
 
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