ᐅ Preparation for photovoltaic or solar thermal systems with an air-to-water heat pump
Created on: 29 Dec 2016 23:21
S
seth0487
Hello everyone!
Our construction will start in January (at least if the weather cooperates), and we have not planned for solar thermal or a photovoltaic system. Heating will be provided by an air-to-water heat pump from StiebelEltron.
Now, I would like to prepare for the possible retrofit of one of these systems. Our builder also offered us a solar thermal preparation. This includes two pipes from the utility room up to the attic, including insulation and sensor cables. It is supposed to cost €1,160.
Now I am wondering if a photovoltaic system might make more sense with an air-to-water heat pump?!
So, this is only about preparation!
The question is, what would need to be prepared for a photovoltaic system?
For your information: The offered solar thermal preparation would be routed through one of the wastewater ventilation stacks.
Could you give me some advice on this?
Our construction will start in January (at least if the weather cooperates), and we have not planned for solar thermal or a photovoltaic system. Heating will be provided by an air-to-water heat pump from StiebelEltron.
Now, I would like to prepare for the possible retrofit of one of these systems. Our builder also offered us a solar thermal preparation. This includes two pipes from the utility room up to the attic, including insulation and sensor cables. It is supposed to cost €1,160.
Now I am wondering if a photovoltaic system might make more sense with an air-to-water heat pump?!
So, this is only about preparation!
The question is, what would need to be prepared for a photovoltaic system?
For your information: The offered solar thermal preparation would be routed through one of the wastewater ventilation stacks.
Could you give me some advice on this?
Tego12 schrieb:
...Photovoltaics make much more sense with an air-to-water heat pump, and the preparation is significantly cheaper. That’s also my opinion.
However, the suggestion in the original post to route the solar thermal system preparation through the wastewater vent pipe seems questionable to me.
Aside from my concerns, wastewater ventilation serves a specific purpose (pressure equalization). Therefore, no modifications of any kind are allowed, including so-called "automatic air admittance valves." Even reductions in pipe diameter are not professional practice and are therefore prohibited! It makes no difference whether it is preparation for a solar thermal system or a photovoltaic system; wastewater ventilation is strictly off-limits!
Oh, maybe that was just my interpretation of the conversation with the employee from my general contractor?
Perhaps it’s not installed inside the pipe, but along with the pipe. I think there might still be space in the shaft next to the vent pipe (DN100?).
I actually consider our general contractor to be very reliable and technically competent in construction...
Perhaps it’s not installed inside the pipe, but along with the pipe. I think there might still be space in the shaft next to the vent pipe (DN100?).
I actually consider our general contractor to be very reliable and technically competent in construction...