Hello everyone,
I’ve heard different opinions about this. What do you do with the ventilation system in summer, turn it off or leave it running?
In the past few days, when it was warm outside, I noticed that heat was also coming in through the ventilation system. The supply air was about 24°C (75°F) even though the outside temperature was around 28°C (82°F), so it’s no surprise the house gets warm.
How do you handle this?
I’ve heard different opinions about this. What do you do with the ventilation system in summer, turn it off or leave it running?
In the past few days, when it was warm outside, I noticed that heat was also coming in through the ventilation system. The supply air was about 24°C (75°F) even though the outside temperature was around 28°C (82°F), so it’s no surprise the house gets warm.
How do you handle this?
Tommes, so far we have only had warm weather once, and now it is cool again. The house would only be erected in September 2016 (timber frame construction).
I run out of breath when the system is off; I will be back home full-time in the basement from mid-June at the latest.
I run out of breath when the system is off; I will be back home full-time in the basement from mid-June at the latest.
Just a theory:
In winter, the "storage" is heated with warm indoor air to warm up the colder outdoor air... does it also work the other way around, meaning: the "storage" is cooled with the room air and cools down the outdoor air?
Otherwise, we stick to basic ventilation during the day and ventilate at night (level 2 or 3)... we have never had more than 22-23°C (72-73°F) so far... let’s see how it goes this year...
In winter, the "storage" is heated with warm indoor air to warm up the colder outdoor air... does it also work the other way around, meaning: the "storage" is cooled with the room air and cools down the outdoor air?
Otherwise, we stick to basic ventilation during the day and ventilate at night (level 2 or 3)... we have never had more than 22-23°C (72-73°F) so far... let’s see how it goes this year...
What kind of storage are you referring to? Try searching for cross-flow heat exchanger.
In summer, the bypass is used. This means turning the bypass on at night and increasing the ventilation so that cool outside air enters the house without heat recovery, while the warm indoor air is expelled directly outside without warming the incoming air.
In summer, the bypass is used. This means turning the bypass on at night and increasing the ventilation so that cool outside air enters the house without heat recovery, while the warm indoor air is expelled directly outside without warming the incoming air.
S
stroky75020 May 2017 11:00SaGo_77 schrieb:
Here’s a theory:
In winter, the "thermal mass" is heated from the inside by warm air to heat up the colder outside air... does it work the other way around? Meaning, can the "thermal mass" be cooled by the indoor air and then cool the outside air?
Otherwise, we stick to basic ventilation during the day and ventilate at night (levels 2 or 3)... we have never had more than 22-23°C (72-73°F) so far... let’s see how it goes this year... Yes, that’s exactly how it works. Not only for preheating but also for cooling.
That’s why it always makes sense to use mechanical ventilation rather than opening windows.
B
Bieber081522 May 2017 10:47A mechanical ventilation system with heat recovery and a bypass should run continuously. This helps reduce the heating of the house, keeping it cooler for longer. Those who have large window fronts and do not provide shading will still end up with a warm house in no time.
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