Hausbauer1
2017-06-29 13:58:35
- #1
Here is what I have thought about for myself:
1: This summer has not been really hot yet. The last one wasn’t either. Two and three years ago we had almost 40 degrees over several days. Then we talk to people who have well-insulated houses again – there is nothing left to insulate, the heat is simply inside and can then only be partially ventilated out without air conditioning. The thick insulated masonry then helps to release the stored heat for a longer time.
2: Ceiling or floor cooling only causes small temperature fluctuations (also because condensation must not form). Therefore, it doesn’t help much if the house is regularly left open.
3: Cooling through ventilation does not work because the amount of air is far too little.
4: Air conditioning costs electricity, that is true. The following can be calculated: a 10 kW system is enough for bedroom, 2 x children's rooms and living room. The 10 kW, however, is roughly calculated with an efficiency of 4. Added to this is a simultaneity factor of around 0.4 on average (that means only 40% load because rarely everyone is at home). If I now calculate 1000 operating hours, I get:
1000h x 10kw : 4 efficiency x 0.4 simultaneity factor = 1000kw x 0.21 Euro = 210 Euro per year -> that is less than 20 Euro per month. What are you willing to pay for a cool place at 40 degrees?
5: The 1,000 hours include heating phases. The next advantage of air conditioning is that it not only cools quickly and effectively, but also heats quickly and effectively.
The system costs about EUR 9,000 gross for us.
Anytime again!
That would probably be worth it to me. It is sometimes so that in summer I am happy when the weather is bad because then finally the house cools down again. That is unpleasant. And I would be willing to pay 10 - 15 Euro for a good night's sleep. Aside from that, it is also more comfortable in the living rooms.