ᐅ Omitting individual room control? Mechanical ventilation with heat recovery + gas heating, new build
Created on: 15 Mar 2019 08:16
K
Kabelmodem87
Hello,
I am currently planning the electrical and technical installations for our new build.
We are constructing with 42.5 Poroton bricks without insulation and have planned a gas heating system as well as a central controlled ventilation system with heat recovery. Almost the entire house will be tiled, except for the children’s room and bedroom.
Now the question about the usefulness of 10 room thermostats, which would cost me €1500 gross without any self-labor, including valves and wiring, and which I find not very attractive on the wall. Additionally, there is continuous power consumption per radiator.
What I have read so far is that a hydraulic balancing is important, a well-adjusted heating curve depending on the outside temperature, and a system with a low flow temperature; then the individual rooms can be perfectly adjusted through the flow in the radiators. Due to door gaps and the ventilation system, it will anyway be difficult to maintain significant temperature differences.
I do not see what comfort the electronic radiator regulators (ERR) would bring, since the system is slow to respond anyway and would only react hours later when there is solar heat gain.
With modern gas boilers, there should also be the option to control the flow temperature externally via smartphone, for example from vacation, and thus lower or raise the whole house temperature by 1-2 degrees before arriving home.
I know that ERR is initially mandatory and you have to apply for an exemption. Do you see a chance that this will be approved? Is the architect together with the heating installer the right contact for the application? I think our installer always installs the room thermostats without considering whether they make sense.
Has anyone experienced a similar situation or has any tips or advice?
Please refrain from comments like “new build costs €500,000 but no €1500 for room thermostats,” this is about the principle of not buying something unnecessary and unattractive.
I am currently planning the electrical and technical installations for our new build.
We are constructing with 42.5 Poroton bricks without insulation and have planned a gas heating system as well as a central controlled ventilation system with heat recovery. Almost the entire house will be tiled, except for the children’s room and bedroom.
Now the question about the usefulness of 10 room thermostats, which would cost me €1500 gross without any self-labor, including valves and wiring, and which I find not very attractive on the wall. Additionally, there is continuous power consumption per radiator.
What I have read so far is that a hydraulic balancing is important, a well-adjusted heating curve depending on the outside temperature, and a system with a low flow temperature; then the individual rooms can be perfectly adjusted through the flow in the radiators. Due to door gaps and the ventilation system, it will anyway be difficult to maintain significant temperature differences.
I do not see what comfort the electronic radiator regulators (ERR) would bring, since the system is slow to respond anyway and would only react hours later when there is solar heat gain.
With modern gas boilers, there should also be the option to control the flow temperature externally via smartphone, for example from vacation, and thus lower or raise the whole house temperature by 1-2 degrees before arriving home.
I know that ERR is initially mandatory and you have to apply for an exemption. Do you see a chance that this will be approved? Is the architect together with the heating installer the right contact for the application? I think our installer always installs the room thermostats without considering whether they make sense.
Has anyone experienced a similar situation or has any tips or advice?
Please refrain from comments like “new build costs €500,000 but no €1500 for room thermostats,” this is about the principle of not buying something unnecessary and unattractive.
@Obstlerbaum
It has arrived, and you don’t think much of it.
Someone took the trouble to present the topic objectively for you and all other readers, and all you can come up with is this childish comment? Just keep your hands off the reply button if you’re not “in the mood” to contribute something relevant to the topic.
It has arrived, and you don’t think much of it.
Someone took the trouble to present the topic objectively for you and all other readers, and all you can come up with is this childish comment? Just keep your hands off the reply button if you’re not “in the mood” to contribute something relevant to the topic.
W
wurmwichtel17 Mar 2019 09:20Kabelmodem87 schrieb:
If two people work until 4 p.m. and are both at work for 9 hours, who ventilates the house then?
Have you ever slept in the summer in a dark, unventilated room without air exchange during the morning? (3 layers)
Waking up at 800 ppm instead of 2500–3000 is a blessing for your health and not a waste of money. Yes, I have. Unlike you, I don’t have fixed working hours, but I’m not overly rigid about things. The fact that I’m not fundamentally opposed to controlled mechanical ventilation has been ignored by its fanboys because they don’t like being reminded that they often wasted money just to support their dogmatic views or to build houses under the banner of “environmental protection” (KfW 55, etc.).
And then there’s the lobbying presence, which really dislikes it when you challenge their business model.
It is quite sad that some people suspect conspiracies everywhere and that the number at the bottom right apparently determines life.
If anyone wants to contribute something constructive to the topic, feel free; obvious nonsense can be avoided, so you don’t reveal a lack of understanding of complex processes.
If anyone wants to contribute something constructive to the topic, feel free; obvious nonsense can be avoided, so you don’t reveal a lack of understanding of complex processes.
K
Kabelmodem8717 Mar 2019 11:44Mycraft schrieb:
It’s unfortunate that some people suspect conspiracies everywhere, and that the number in the bottom right apparently defines life.
If anyone wants to contribute something constructive to the topic, please do so; obvious nonsense can be skipped, that way no one reveals a lack of understanding of complex processes.One more thing on the subject: Did you write the exemption request yourself? If so, could you please send me excerpts privately, if available?
K
Kabelmodem8717 Mar 2019 12:01Mycraft schrieb:
I used the template from Bosy and simply entered the data for my condensing boiler instead of the heat pump:
bosy-online.de/Befreiungsantrag-.pdf Okay, so no mention of controlled mechanical ventilation at all? Is the €250 fee always applicable or does it depend on the federal state? I just hope they don’t reject it, or else I will have woken the dogs.
What supply temperatures are you running with your boiler at 0-5°C (32-41°F) outdoor temperature?
Similar topics