ᐅ Does a mechanical ventilation system with heat recovery count as a heating system?
Created on: 3 Mar 2012 20:10
S
Suselche
We are building our house individually with an architect (without a developer or similar). We have planned a ventilation system with heat recovery. According to the purchase contract, we are obligated to connect to the local heat network (wood chip heating plant). Currently, we have an issue with the energy provider because they do not want to allow this system. Our contract states the following literally: ".commits to connect to the biomass heating plant and to obtain all necessary heating energy for space heating and domestic hot water supply of the house to be built from there. No other heating of the property except with an open fireplace and/or tiled stove and/or solar energy is permitted." The provider refers to the second part and claims that a controlled residential ventilation system with heat recovery contributes to the heating of the building.
My questions are as follows:
Does a controlled residential ventilation system with heat recovery count as heating?
Is the Energy Saving Ordinance together with DIN 1946-6 to be considered more authoritative than the concerns of the private operator?
What could happen to me if I install the system anyway?
My questions are as follows:
Does a controlled residential ventilation system with heat recovery count as heating?
Is the Energy Saving Ordinance together with DIN 1946-6 to be considered more authoritative than the concerns of the private operator?
What could happen to me if I install the system anyway?
B
Bauexperte5 Mar 2012 23:22Hello,
Can "they" really not do this (this part of the "retained heat" reduces the energy demand from the district heating supplier), or does this clear statement before the purchase:
"undertakes to connect to the biomass heating plant and to obtain all necessary heating energy for space heating and domestic hot water supply of the residential building to be constructed from there. Any other heating of the property except with an open fireplace and/or tiled stove and/or solar energy is not permitted"
not set the conditions by the seller, and the only way to avoid this restriction is to give up the property?
Kind regards
Stefanlein schrieb:
Your contract clearly states what you are allowed to do and what you are not. It only refers to heating. You have not signed a ban on energy saving, nor can they prohibit you from "retaining" the heat (already purchased from them!) through a controlled residential ventilation system.
Can "they" really not do this (this part of the "retained heat" reduces the energy demand from the district heating supplier), or does this clear statement before the purchase:
"undertakes to connect to the biomass heating plant and to obtain all necessary heating energy for space heating and domestic hot water supply of the residential building to be constructed from there. Any other heating of the property except with an open fireplace and/or tiled stove and/or solar energy is not permitted"
not set the conditions by the seller, and the only way to avoid this restriction is to give up the property?
Kind regards
P
perlenmann6 Mar 2012 08:10Bauexperte schrieb:
"No heating of the property other than with an open fireplace and/or tiled stove and/or solar energy is permitted"But in my opinion, that’s exactly the point. The aim is not to heat, but to save energy. Then higher efficiency measures (e.g., insulation) of the house would also have to be prohibited. I can’t imagine that this is allowed under energy-saving regulations, although, well, we do live in bureaucratic Germany.
Could it be that your heat supplier is accidentally confusing the controlled ventilation system with heat recovery with an air-source heat pump? Perhaps you should calmly explain to them the fundamental difference between a heat pump and heat recovery! It should be quite clear that a heat exchanger does not generate energy but only recovers the heat provided by the heat supplier.
Harry77 schrieb:
.... And the fact that a heat exchanger does not generate energy (but only recovers the heat supplied by the heat source) is quite obvious. Correct! And not 100%, but maybe around 80%, depending on the heat exchanger efficiency.Similar topics