ᐅ Is an air conditioning system necessary for a south-facing slope location?
Created on: 4 Mar 2020 12:12
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Guido1980
Is an air conditioning system necessary for the attic with a roof pitch of 35 degrees facing south, featuring two roof windows and a dormer on the south side? The rooms on the south side, arranged from west to east, are an office, a children's room, and a bedroom.
Opinions vary widely on this. A heat pump with cooling function and a mechanical ventilation system with heat recovery will be installed.
At the moment, the plan is to at least equip the south-facing rooms in the attic and possibly also the ground floor (living/dining area) with air conditioning.
Opinions vary widely on this. A heat pump with cooling function and a mechanical ventilation system with heat recovery will be installed.
At the moment, the plan is to at least equip the south-facing rooms in the attic and possibly also the ground floor (living/dining area) with air conditioning.
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hampshire4 Mar 2020 21:59The key question is how you cope with hot days. If it’s problematic: plan for air conditioning from the start and avoid direct sunlight entering the house.
If you want underfloor heating, consider systems that use refrigerant instead of water in the piping.
If you want underfloor heating, consider systems that use refrigerant instead of water in the piping.
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nordbayer4 Mar 2020 22:02Installing photovoltaic panels on the roof also helps reduce temperatures. And the air conditioning system needs electricity especially when the photovoltaic system is generating it.
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Deliverer5 Mar 2020 09:07I thought after the last four or five summers, this wouldn’t even be up for discussion...
I would definitely prepare all empty conduits and openings in advance, otherwise you’ll regret it in two years. And it’s best to install a 3.5 kW (4.7 hp) unit as high and as centrally as possible right from the start. The advantage is that you can dehumidify the entire house fairly quickly, which also makes underfloor cooling work better. Having an air conditioning system is such a huge comfort gain that the initial investment costs are actually negligible. The electricity costs are also hardly worth mentioning.
External shading is still absolutely necessary in this situation!
I would definitely prepare all empty conduits and openings in advance, otherwise you’ll regret it in two years. And it’s best to install a 3.5 kW (4.7 hp) unit as high and as centrally as possible right from the start. The advantage is that you can dehumidify the entire house fairly quickly, which also makes underfloor cooling work better. Having an air conditioning system is such a huge comfort gain that the initial investment costs are actually negligible. The electricity costs are also hardly worth mentioning.
External shading is still absolutely necessary in this situation!
Deliverer schrieb:
I thought, after the last four or five summers, this wouldn’t be up for debate anymore...Yes, I thought so too, especially since we have often discussed this here already.H
hampshire5 Mar 2020 11:43For most people, air conditioning is desirable. Those who appreciate nature, fresh air, and the scents of garden, forest, and meadow are better off finding other solutions than sealing themselves inside buildings airtight in both summer and winter.
It’s a case of real-life irony. We build energy-efficient houses to reduce heating needs in winter. These buildings become increasingly airtight and heavily insulated. Great—very low energy consumption in winter! But then we realize that in summer, the heat no longer escapes from the houses. So, we add air conditioning units. Wonderful energy saving. Of course, when it’s hot, the air conditioning can be powered by photovoltaics, which is also a significant contribution to climate protection.
I find it perfectly reasonable when a homeowner considers maintaining comfortable indoor temperatures and sees air conditioning as the only viable option.
It’s a case of real-life irony. We build energy-efficient houses to reduce heating needs in winter. These buildings become increasingly airtight and heavily insulated. Great—very low energy consumption in winter! But then we realize that in summer, the heat no longer escapes from the houses. So, we add air conditioning units. Wonderful energy saving. Of course, when it’s hot, the air conditioning can be powered by photovoltaics, which is also a significant contribution to climate protection.
I find it perfectly reasonable when a homeowner considers maintaining comfortable indoor temperatures and sees air conditioning as the only viable option.
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Guido19805 Mar 2020 13:51Additionally, you will find the current floor plans indicating which rooms are potentially planned to be equipped with air conditioning, along with some images of the exterior.
On the top floor, two of the three rooms (the office and bedroom) have skylights that are expected to be fitted with external blinds. The middle room (child’s room) is located in the front gable and will have a standard roller blind.
On the ground floor, external venetian blinds are planned for the floor-to-ceiling windows in the southwest corner, while the rest of the windows will have normal roller blinds.
All of these will be controllable via smart home technology (including remotely or based on time of day and sunlight exposure).
Nevertheless, there is concern that the rooms on the top floor may become too warm during the summer with the current temperature developments.
The first offer for equipping the four rooms with a multi-split air conditioning system amounts to approximately €15,000 (including materials and installation).
Wood fiber boards for added roof insulation are currently not planned.
Are there any experiences regarding cooling through controlled ventilation systems combined with underfloor heating? From what I have read, the cooling functions in these systems appear quite limited, and actual cooling during peak summer heat can only be effectively achieved with air conditioning.
Why is the electricity consumption considered negligible?
On the top floor, two of the three rooms (the office and bedroom) have skylights that are expected to be fitted with external blinds. The middle room (child’s room) is located in the front gable and will have a standard roller blind.
On the ground floor, external venetian blinds are planned for the floor-to-ceiling windows in the southwest corner, while the rest of the windows will have normal roller blinds.
All of these will be controllable via smart home technology (including remotely or based on time of day and sunlight exposure).
Nevertheless, there is concern that the rooms on the top floor may become too warm during the summer with the current temperature developments.
The first offer for equipping the four rooms with a multi-split air conditioning system amounts to approximately €15,000 (including materials and installation).
Wood fiber boards for added roof insulation are currently not planned.
Are there any experiences regarding cooling through controlled ventilation systems combined with underfloor heating? From what I have read, the cooling functions in these systems appear quite limited, and actual cooling during peak summer heat can only be effectively achieved with air conditioning.
Why is the electricity consumption considered negligible?
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