1 year ventilation system, clarity, facts, electricity costs

I also compared at the same speed.

I also find the 295 m3/h a lot for about 200 m2 of living space, but the calculation program specifies this as the basic ventilation. (There are 3 levels (1) minimum ventilation without people < (2) basic ventilation < (3) intensive ventilation). Certainly, the high power consumption is only one side of the consideration, but the other side of the advantages is known from the brochures and forums. All in all, I no longer want to do without the ventilation, especially in winter, and am happy to pay for this "comfort".

You don't want to understand, do you?

Hello, since the thread is already a bit older, I wanted to currently ask if anyone has newer information about the current power consumption of a ventilation system?? We want to build with a ventilation system, but there is little information about additional costs available online.

Hello, it is actually quite easy to roughly calculate the power consumption yourself.

When I calculate for customers what the system consumes in electricity, I usually assume the maximum.
Number of fans * power consumption of the fans in watts * 24 h * 365 d / 1000 = kWh/year
kWh/year * €/kWh = electricity costs/year

Example:

6 fans at 1.3 watts each
6 * 1.3 W * 24 h * 365 d = 68328 W/year
68328 W / 1000 = 68.328 kWh/year
68.328 kWh * 0.3 €/kWh = €20.50/year

The consumption of the control unit is not taken into account here. However, this is unproblematic, since ventilation systems are mostly operated at the lowest setting most of the time.

Our Pluggit Avent P310 runs continuously on level 2 (reduced ventilation). In just under 4 hours, a complete air exchange is carried out.

The system has a power consumption of 27 watts (measured) or consumes about 0.7 kWh/day.

According to the manufacturer, the heat recovery is supposedly 9 times higher than the electricity consumption. I cannot verify or prove this. If that were the case: electricity costs about 21 cents per day (so almost always except in summer). Theoretical gas savings, maximum case: 38 cents per day (only when it is very cold outside). Purely mathematically no gain that would amazes anyone and none that would justify the investment as such. Probably somewhere around 0.0 costs/savings plus investment/capital costs.

However, in our opinion, the comfort gain through the system is given. When using our fireplace, the upper floor is also heated accordingly with a delay - mainly due to the ventilation system - so that during the transition period I can largely do without additional heating.

The indoor climate is excellent. Since we have been living in the house, my wife has had significantly fewer allergy-related respiratory problems.

How do you handle the chimney? Pressure guard? Or are there other tricks to omit the pressure guard?