Hello,
My husband and I are currently trying to decide which heating system to install in our planned house.
I insist on having a ventilation system and a wood-burning stove in the living room. So the heating should be compatible with these.
Our chosen construction company has now offered us three heat pumps:
Air-to-water heat pump: Nibe F2040-8 with Nibe VVM320
Exhaust air heat pump: Nibe F750 P with supply air module SAM 40
Ground source heat pump: Nibe 1245-6 with deep drilling
My husband currently prefers the exhaust air heat pump because he thinks it works like the air-to-water heat pump but makes better use of the warm air from running computers... Everywhere I read, though, it says: "Avoid exhaust air heat pumps unless you are building a passive house."
Does the supply air module actually make it function somewhat like an air-to-water heat pump, but with better use of the warm indoor air?
The house is planned as a two-story timber frame construction with KfW 55 standard. To be honest, I am completely overwhelmed by this complicated heating topic. The more information I get, the more complex it seems.
My husband and I are currently trying to decide which heating system to install in our planned house.
I insist on having a ventilation system and a wood-burning stove in the living room. So the heating should be compatible with these.
Our chosen construction company has now offered us three heat pumps:
Air-to-water heat pump: Nibe F2040-8 with Nibe VVM320
Exhaust air heat pump: Nibe F750 P with supply air module SAM 40
Ground source heat pump: Nibe 1245-6 with deep drilling
My husband currently prefers the exhaust air heat pump because he thinks it works like the air-to-water heat pump but makes better use of the warm air from running computers... Everywhere I read, though, it says: "Avoid exhaust air heat pumps unless you are building a passive house."
Does the supply air module actually make it function somewhat like an air-to-water heat pump, but with better use of the warm indoor air?
The house is planned as a two-story timber frame construction with KfW 55 standard. To be honest, I am completely overwhelmed by this complicated heating topic. The more information I get, the more complex it seems.
S
Sebastian7920 Aug 2016 21:35What do you want to compare here – it needs to be checked.
However, I also agree with Saruss: depending on the plot, you can only build over a very small area. If the winter is severe, the ground can remain frozen well into spring.
Enthusiasts usually don't mind this, but the average German will later – and by then it’s too late.
However, I also agree with Saruss: depending on the plot, you can only build over a very small area. If the winter is severe, the ground can remain frozen well into spring.
Enthusiasts usually don't mind this, but the average German will later – and by then it’s too late.
I meant studies or experiments conducted under the same conditions.
For example, a study involving all three systems on the same plot of land, with an evaluation of this experiment.
The geological suitability should already be similarly adequate, as well as the geographical location, etc.
For example, a study involving all three systems on the same plot of land, with an evaluation of this experiment.
The geological suitability should already be similarly adequate, as well as the geographical location, etc.
S
Sebastian7920 Aug 2016 21:41I am not aware of any – such a study would also be known in the relevant forums.
But there are already studies on heating topics... including geothermal energy – although I don’t remember exactly what was specifically compared there. Try searching on Google a bit.
The problem is that all solutions work, and in the end, the costs per hour of comfort depend on many factors, including user behavior. That makes it very difficult to standardize.
The problem is that all solutions work, and in the end, the costs per hour of comfort depend on many factors, including user behavior. That makes it very difficult to standardize.
Thank you, I will take a look.
That is exactly WHY I want an independent and standardized way to compare, rather than relying on different users’ experience data.
Because how often user X bathes or showers with consumption Y is often not mentioned.
Then I might choose option X because it was cheaper for that person, but they live with a room temperature of 18°C (64°F) in winter and only shower once a week for 5 minutes.
In that case, my consumption would be much higher and the comparison would be useless.
BeHaElJa schrieb:
the costs per hour of comfort depend on many factors, including user behavior.
That is exactly WHY I want an independent and standardized way to compare, rather than relying on different users’ experience data.
Because how often user X bathes or showers with consumption Y is often not mentioned.
Then I might choose option X because it was cheaper for that person, but they live with a room temperature of 18°C (64°F) in winter and only shower once a week for 5 minutes.
In that case, my consumption would be much higher and the comparison would be useless.