Quote:
Originally Posted by PaperBagger'14
Fuzz made a good follow up post, you really need to see a strong difference between outside temps and inside temps. If it’s 25 outside and 28 on your top floor then yeah it won’t be noticeable at all, and even when you do have a 10 degree difference it’s still not overly effective.
We have a house cleaner who comes by once a month and she accidentally flipped the ventilation switch while cleaning in January and I’ll promise you my house was damn cold when I got home. Like probably ~12 inside
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I meant that the ventilation van alone/furnace fans alone wouldn't be good enough for AC. HRV might be though.
But maybe it was just my previous place. Even with AC, the temps only dropped around 1.5-2.5C per hour and maybe 1C per hour at best with the exhaust fans, but only if it was colder outside than inside.
So if it was 28C outside/inside, AC would take 2-3 hours to hit a comfy temp of around 23C. Fans? No chance during the day, and it'd maybe drop 1C per hour to get to maybe around 21-24C by around 2-3AM depending if we could catch a breeze. It was awful when the thermostat was still mid 20s and outside was high/low teens and we just couldn't vent/swap for fresh air fast enough to bring temps down from sauna to comfortable.