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.
Trench collectors work almost everywhere – depending on the soil conditions, you might need a slightly longer pipe run, but this can be accurately calculated.
Installing a panel yourself is a different matter – with a trench collector, the transfer point is at the end of the brine pipe (which may still need to be routed into the boiler room). From there, the heating engineer takes over. The effort involved is about half a day to one day. If desired, you can also hand everything over to a civil engineering company, which still comes out significantly cheaper than drilling. And the system lasts just as long as a deep borehole (using identical piping).
Installing a panel yourself is a different matter – with a trench collector, the transfer point is at the end of the brine pipe (which may still need to be routed into the boiler room). From there, the heating engineer takes over. The effort involved is about half a day to one day. If desired, you can also hand everything over to a civil engineering company, which still comes out significantly cheaper than drilling. And the system lasts just as long as a deep borehole (using identical piping).
S
Sebastian7920 Aug 2016 18:47Well, I guess we were an exception – since the trend is continuing towards even smaller plots of land, we probably won’t stay that way for long...
R0Li84 schrieb:
On small plots, so-called system collectors can be installed. These stand vertically in the ground. However, with proper planning (installation before construction begins), it is usually possible to accommodate a trench collector on almost any plot. Here, some people built a bungalow on a small plot, and in winter the trench collector lifts the terrace by a few centimeters (inches) because the collector is slightly too small... It also depends on whether and how the land will be used otherwise, for example planting, etc. And it requires approval, so you can’t simply say it always works.
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S
Sebastian7920 Aug 2016 20:34Don’t act so knowledgeable – it simply isn’t possible on every plot. This is not uncommon, and it’s definitely not something you can do quickly or casually. People often say that anyone can do it, but that’s a misconception.
For us, it would have been a significant effort, even if it were possible.
And yes, I checked in the pink forum and used the trench tool myself and had it used for me.
It wasn’t feasible given the house size, the plot (520 m² (5600 sq ft), sandy soil, no high groundwater) and the heating load (8.1 kW).
For us, it would have been a significant effort, even if it were possible.
And yes, I checked in the pink forum and used the trench tool myself and had it used for me.
It wasn’t feasible given the house size, the plot (520 m² (5600 sq ft), sandy soil, no high groundwater) and the heating load (8.1 kW).