Hello everyone,
I built a new house 4 years ago and have the problem that the bedroom on the upper floor gets very warm in summer (when there are several warm/hot days in a row).
Therefore, I am looking for a suitable split air conditioning system.
The bedroom is about 18m² (195 sq ft) in size, which corresponds to roughly 50 m³ (1,765 cu ft) of room volume.
It would be desirable to control the system with my smartphone (plus scheduling). Ideally, there would also be an option to connect it to ioBroker. I have an HVAC technician available who can install the system.
I have the following questions:
- I have a mechanical ventilation system installed. How does this work in combination with a split air conditioner? Is there anything I should consider regarding this? The bedroom has two vents (1 supply air and 1 exhaust air).
- Next door is a child’s room (about 20m² (215 sq ft) -> about 55 m³ (1,940 cu ft) of room volume). Does it make sense to switch to a multi-split system so that I can possibly cool both rooms with one outdoor unit? I do not currently need cooling in that room, but we might decide to add it in 1-2 years. Or would it be just as good to buy a separate single split unit for that later?
- Should the distance between indoor and outdoor units be kept as short as possible? For example, I wonder if the outdoor unit should be mounted directly at the gable at the top, or if I can also mount it down near the ground (there is a garden there, so the unit would be somewhat hidden [IMG alt=" 🙂"]https://www.kaelte-treffpunkt.de/images/smilies/icon_smile.gif[/IMG]
- Main question: Which air conditioner would you recommend for my needs/requirements? I am mostly looking for the best price/performance options.
- I’m happy to buy online — I read that air conditioners are significantly cheaper in Italy. Has anyone had experience with this? What about warranty, guarantee, and customs fees?
I hope to clarify some of these questions here [IMG alt=" 🙂"]https://www.kaelte-treffpunkt.de/images/smilies/icon_smile.gif[/IMG]
Best regards,
Markus
I built a new house 4 years ago and have the problem that the bedroom on the upper floor gets very warm in summer (when there are several warm/hot days in a row).
Therefore, I am looking for a suitable split air conditioning system.
The bedroom is about 18m² (195 sq ft) in size, which corresponds to roughly 50 m³ (1,765 cu ft) of room volume.
It would be desirable to control the system with my smartphone (plus scheduling). Ideally, there would also be an option to connect it to ioBroker. I have an HVAC technician available who can install the system.
I have the following questions:
- I have a mechanical ventilation system installed. How does this work in combination with a split air conditioner? Is there anything I should consider regarding this? The bedroom has two vents (1 supply air and 1 exhaust air).
- Next door is a child’s room (about 20m² (215 sq ft) -> about 55 m³ (1,940 cu ft) of room volume). Does it make sense to switch to a multi-split system so that I can possibly cool both rooms with one outdoor unit? I do not currently need cooling in that room, but we might decide to add it in 1-2 years. Or would it be just as good to buy a separate single split unit for that later?
- Should the distance between indoor and outdoor units be kept as short as possible? For example, I wonder if the outdoor unit should be mounted directly at the gable at the top, or if I can also mount it down near the ground (there is a garden there, so the unit would be somewhat hidden [IMG alt=" 🙂"]https://www.kaelte-treffpunkt.de/images/smilies/icon_smile.gif[/IMG]
- Main question: Which air conditioner would you recommend for my needs/requirements? I am mostly looking for the best price/performance options.
- I’m happy to buy online — I read that air conditioners are significantly cheaper in Italy. Has anyone had experience with this? What about warranty, guarantee, and customs fees?
I hope to clarify some of these questions here [IMG alt=" 🙂"]https://www.kaelte-treffpunkt.de/images/smilies/icon_smile.gif[/IMG]
Best regards,
Markus
E
Elias_dee7 Aug 2022 10:59Mycraft schrieb:
Yes, these are two completely independent systems, and both make sense in modern homes. If the budget allows, it’s definitely worth installing one, the other, or even both.
Of course, it would be ideal if both systems could work together rather than against each other. Yes, especially in combination with solar panels, I find air conditioning very useful!
What do you mean by not working against each other? What should I watch out for in this regard?
Elias_dee schrieb:
What do you mean by not working against each other? What should I pay attention to here? The ventilation systems should ideally run at a basic ventilation level during hot periods and then switch back to normal or intensive mode automatically when it gets cooler outside. Additionally, shading should be considered to help save energy. Occupancy also plays a role.
It is counterproductive to run the air conditioning at full capacity while at the same time pumping warm air from outside inside.
And so on.
E
Elias_dee7 Aug 2022 11:36Mycraft schrieb:
The ventilation systems should ideally run on basic ventilation mode during heat waves and switch back to normal or intensive mode when it gets cooler outside, preferably automatically. Additionally, shading should be considered to help save energy. Occupancy also plays a role.
It is counterproductive to operate the air conditioning at full load while pumping warm air from outside indoors.
And so on. These are great tips. Thank you very much! Regarding the placement of indoor air conditioning units, are there any recommendations? Should they be positioned as far as possible from or close to the air vents or exhausts of the ventilation system?
E
Elias_dee7 Aug 2022 11:42Mycraft schrieb:
No, that doesn’t matter.
The system that is supposed to cool most of the house should be located at the top of the staircase area.
Avoid placing vents directly blowing onto the beds in the bedrooms.Thank you, my friend :-) you helped me a lot!D
DamDumDob12 Sep 2022 20:54Interesting topic that is currently coming up for us as well. We are building a KFW55 house (basement/ground floor/upper floor/attic) and have received a quote for a multi-split air conditioning system with 4 indoor units (1x ground floor living/dining area, 2x upper floor bedrooms and children’s rooms, and 1x attic) for €9000. That is generally too expensive for me. At the moment, I am leaning towards installing air conditioning only in the living/dining area and in the attic. We do not have a ventilation system, but I hope that there would also be a positive effect on the upper floor, as the open staircase runs from the living/dining area upwards. Am I correct in thinking this, or will there be little effect on the bedrooms on the upper floor?
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