ᐅ Proxon FWT 2.0 Temperature Discrepancy

Hello everyone,

is it normal or what could be the reason that when I set a desired indoor temperature of 20°C (68°F) and the outside temperature is no higher than 14°C (57°F), with the cooling function turned off, it still stays at 24°C (75°F) inside? Here are the system data

It's the same for anyone with a relatively new and well-insulated house. The refrigerator stays cool for a long time even when the power is off. The house remains warm for a long time, even when it's quite cold outside.

Here at my place right now: 11°C (52°F) outside, 23.3°C (74°F) inside. No heating.

Thank you for your response! It is an E40 house. However, I still wouldn’t have expected that at the highest ventilation setting, the entire air volume is replaced 12 times per day and it still stays so warm. We have only been living here for 2 months. We are now experiencing cooler days in the new house for the first time.

Ghostflyer schrieb:

We are now experiencing cooler days for the first time in the new house

Then look forward to it. In my case (almost a 40-year-old renovated building), I assume I won’t need to start the heating until October (early to mid, depending on the hours of sunlight, which act like a heater—even though there’s a ventilation system—by the way, why is yours running at full power???).
That’s how it’s supposed to be in modern houses. The best heating energy is the energy you don’t need.

I ran the ventilation at full power because I thought that with 24°C (75°F) inside and 14°C (57°F) cold air from outside, I could reach my desired 20°C (68°F) indoors. This works with the cooling function, but not without it. And I don’t understand why 14°C (57°F) outside isn’t cold enough to reach 20°C (68°F) indoors without the cooling function.

Walls, ceilings, furniture, etc. still store a lot of heat. It takes longer to release this heat than simply exchanging the air. Alternatively, you would need so much air that the draft would be uncomfortable.