ᐅ Advantages and Disadvantages of Ventilation and Exhaust Systems
Created on: 20 Nov 2013 10:45
K
kaho674
Hello,
I don’t believe such a system is absolutely necessary, or rather, I haven’t yet seen the significant benefits it offers. I prefer to simply open the window. What are the advantages of a ventilation and exhaust system, and what might be the drawbacks?
I don’t believe such a system is absolutely necessary, or rather, I haven’t yet seen the significant benefits it offers. I prefer to simply open the window. What are the advantages of a ventilation and exhaust system, and what might be the drawbacks?
MundS schrieb:
And my point from the beginning was that it doesn’t pay off or only very late!What is your opinion when the storage system is fully financed through the KfW 153 program? We are building a two-unit dwelling, installing 9.9kWh (kilowatt-hours) on the roof, and using an E3/DC storage system with 10.5kWh (kilowatt-hours). The repayment subsidy for KfW40+ is €10,000 (almost $11,000), which compared to KfW40 almost covers the cost of the storage system, which costs me around €12,000 (about $13,000).
So, the net cost for the storage solution is about €2,000 (around $2,200) for 10.5kWh (kilowatt-hours)… which initially sounds profitable to me!
Very interesting discussion, although somewhat off-topic, but hey:
We also have an E3/DC system, currently with only 4.6 kWh (5.2 kWh) in the single-family house. The photovoltaic system is 14.8 kWp (14.8 kWp) (which sounds oversized at first, but actually makes sense).
The advantage of the E3/DC is that it also serves as an inverter.
So that saves you some equipment costs as well.
What I actually wanted to ask @KingSong: Is the 275 program no longer available? We received almost 4,000 EUR in repayment subsidies from that alone.
On the topic:
We also have a centralized controlled ventilation system with heat recovery (HRV) in our house, and I was especially grateful for it during the screed drying ventilation. Just imagining having to open nearly 26 windows twice a day in all rooms in the morning and evening—the time spent alone makes every cent worth it for me.
We also have an E3/DC system, currently with only 4.6 kWh (5.2 kWh) in the single-family house. The photovoltaic system is 14.8 kWp (14.8 kWp) (which sounds oversized at first, but actually makes sense).
The advantage of the E3/DC is that it also serves as an inverter.
So that saves you some equipment costs as well.
What I actually wanted to ask @KingSong: Is the 275 program no longer available? We received almost 4,000 EUR in repayment subsidies from that alone.
On the topic:
We also have a centralized controlled ventilation system with heat recovery (HRV) in our house, and I was especially grateful for it during the screed drying ventilation. Just imagining having to open nearly 26 windows twice a day in all rooms in the morning and evening—the time spent alone makes every cent worth it for me.
@KingSong
We are receiving a repayment grant of 15,000 EUR, and if you allocate that to the photovoltaic system and the storage unit, it's almost covered!
However, the costs for the passive house are significantly higher; wall construction, foundation slab, and windows are already more expensive.
But we are not building a passive house to save money, rather out of conviction...
We are receiving a repayment grant of 15,000 EUR, and if you allocate that to the photovoltaic system and the storage unit, it's almost covered!
However, the costs for the passive house are significantly higher; wall construction, foundation slab, and windows are already more expensive.
But we are not building a passive house to save money, rather out of conviction...
We feel the same way; we are also building a KfW 40+ house out of conviction! The fact that we almost get a storage solution for the photovoltaic system for free is a welcome bonus. Adding an E-Heat Box will help us reduce our feed-in to nearly zero. Well, in summer we will probably have to feed some electricity back into the grid, but that’s okay.
D
Deliverer14 Sep 2017 13:19My dream is to have an air conditioning system powered directly from the roof during the summer...
What could be more sensible than using the sun, which makes you too warm, to cool you down again? By the way, this is also available at Maybach!
What could be more sensible than using the sun, which makes you too warm, to cool you down again? By the way, this is also available at Maybach!
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