ᐅ Does a mechanical ventilation system with heat recovery count as a heating system?
Created on: 3 Mar 2012 20:10
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SuselcheWe 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?
P
perlenmann4 Mar 2012 08:05I will respond as a layperson:
A controlled ventilation system does not provide heating; it only reduces energy consumption compared to window ventilation. Based on what your provider says, you wouldn’t be allowed to improve your insulation either, since that would also reduce consumption! In my opinion, that doesn’t make sense. I would recommend checking with the building authority (building permit / planning permission).
Besides, you still need a heat generator!
A controlled ventilation system does not provide heating; it only reduces energy consumption compared to window ventilation. Based on what your provider says, you wouldn’t be allowed to improve your insulation either, since that would also reduce consumption! In my opinion, that doesn’t make sense. I would recommend checking with the building authority (building permit / planning permission).
Besides, you still need a heat generator!
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Bauexperte4 Mar 2012 11:56Hello,
I am sure, if time allows, Bauexperte will respond professionally. Meanwhile, here is some clarification:
A controlled residential ventilation system is used when tight sealing measures result in very little air exchange with the outdoor air. This is combined with a heat exchanger for heat recovery, which during the cold season ensures that the warm outgoing indoor air heats the incoming outdoor air, minimizing the loss of heat energy from the building interior.
The goal of your heat supplier is to connect you to their distribution network with as high consumption levels as possible in the long term. It is natural that they are not in favor of heat recovery.
They do not contradict each other; that is likely your actual question.
A rather high fine and, in the worst case, an unpleasant court proceeding based on the “deception” of acquiring the property while circumventing the contractual agreements.
Kind regards
Suselche schrieb:
... Our contract literally states: ".commits to connect to the biomass heating plant and to purchase all necessary heating energy for heating and 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." The operator 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:
Is a controlled residential ventilation system with heat recovery considered a heating system?
I am sure, if time allows, Bauexperte will respond professionally. Meanwhile, here is some clarification:
A controlled residential ventilation system is used when tight sealing measures result in very little air exchange with the outdoor air. This is combined with a heat exchanger for heat recovery, which during the cold season ensures that the warm outgoing indoor air heats the incoming outdoor air, minimizing the loss of heat energy from the building interior.
The goal of your heat supplier is to connect you to their distribution network with as high consumption levels as possible in the long term. It is natural that they are not in favor of heat recovery.
Suselche schrieb:
Should the Energy Saving Ordinance be given higher priority than the standards in DIN 1946-6 compared to the concerns of the private operator?
They do not contradict each other; that is likely your actual question.
Suselche schrieb:
What could happen if I install the system anyway?
A rather high fine and, in the worst case, an unpleasant court proceeding based on the “deception” of acquiring the property while circumventing the contractual agreements.
Kind regards
Bauexperte schrieb:
...The goal of your heat supplier is to connect you to their distribution network with the highest possible long-term consumption. It is natural that they are not in favor of heat recovery.I agree with that. A mechanical ventilation system with heat recovery is not a heating system, because it lacks the core component of a heating installation: the heat generator!
Regardless, in the end, what matters is what the supplier allows under their conditions.
Best regards
Thank you for this information. Until now, we have only received answers stating that we are, of course, allowed to install this system.
Apart from the purchase contract, we have not signed anything that explicitly states we are not permitted to install a mechanical ventilation system with heat recovery.
Only the paragraph regarding heating.
SO if the mechanical ventilation system with heat recovery does not fall under the term heating, then could the operator also prohibit me from installing insulation because of the turnover, or is that a different matter?
Apart from the purchase contract, we have not signed anything that explicitly states we are not permitted to install a mechanical ventilation system with heat recovery.
Only the paragraph regarding heating.
SO if the mechanical ventilation system with heat recovery does not fall under the term heating, then could the operator also prohibit me from installing insulation because of the turnover, or is that a different matter?
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Stefanlein5 Mar 2012 18:22Hello!
Your contract clearly states what you are allowed to do and what you are not. This is only about heating. You have not signed any ban on energy saving, nor can they forbid you from retaining the heat (which you already purchased from them!) through a controlled mechanical ventilation system.
Don’t let yourself be fooled—what’s next??? A ban on triple glazing??? Mandatory daily airing for 3 hours??? Heating turned down prohibited???
It has already been mentioned that the ventilation system does not provide heating, so nobody can forbid you from using it. If they see it differently, they should take it to court and get a bloody nose. But they probably know themselves that they are wrong; they might as well try it ;-)
Your contract clearly states what you are allowed to do and what you are not. This is only about heating. You have not signed any ban on energy saving, nor can they forbid you from retaining the heat (which you already purchased from them!) through a controlled mechanical ventilation system.
Don’t let yourself be fooled—what’s next??? A ban on triple glazing??? Mandatory daily airing for 3 hours??? Heating turned down prohibited???
It has already been mentioned that the ventilation system does not provide heating, so nobody can forbid you from using it. If they see it differently, they should take it to court and get a bloody nose. But they probably know themselves that they are wrong; they might as well try it ;-)
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