ᐅ Does it make sense to install an air conditioning system?
Created on: 17 Jun 2019 23:51
I
Illya-Berlin
Hello,
we are soon building an urban villa with two full floors in Brandenburg (Barnim).
Construction method: double-layer masonry (15 cm (6 inches) lightweight clay wall elements + 14 cm (6 inches) mineral wool insulation + 11 cm (4 inches) facing bricks, so a wall thickness of 40 cm (16 inches)).
Now we need to decide whether we require air conditioning so that the construction company can plan the necessary openings and electrical installation accordingly. For us, only a split system for one or two rooms is an option (kitchen, because it gets hot when cooking / living room or bedroom).
Unfortunately, we cannot assess whether it is really necessary, whether the rooms become uncomfortably warm during hot days like the last two weeks, or if they stay cool due to the construction style of a detached house.
Does anyone have any experience?
We appreciate any advice.
Best regards
we are soon building an urban villa with two full floors in Brandenburg (Barnim).
Construction method: double-layer masonry (15 cm (6 inches) lightweight clay wall elements + 14 cm (6 inches) mineral wool insulation + 11 cm (4 inches) facing bricks, so a wall thickness of 40 cm (16 inches)).
Now we need to decide whether we require air conditioning so that the construction company can plan the necessary openings and electrical installation accordingly. For us, only a split system for one or two rooms is an option (kitchen, because it gets hot when cooking / living room or bedroom).
Unfortunately, we cannot assess whether it is really necessary, whether the rooms become uncomfortably warm during hot days like the last two weeks, or if they stay cool due to the construction style of a detached house.
Does anyone have any experience?
We appreciate any advice.
Best regards
Mycraft schrieb:
I have one outdoor unit and three indoor units. [...] So now I need condensate pumps at the indoor units, for example.Could you please provide the exact names (brand & model) of the units you installed? What is the cooling capacity in kW of your outdoor unit for the three indoor units?S
Steffen8019 Jun 2019 12:30Deliverer schrieb:
Two things: Air conditioners do not cause illness. If you overuse them and reduce the humidity to the point where your mucous membranes dry out, it can make you more susceptible to viruses or bacteria. But you still have to catch a cold from somewhere.
And: I also like to ventilate. I need fresh air. But especially in recent weeks, ventilating here (in southern Germany) has led to high indoor humidity levels (>65%). At those levels, even a mild 24°C (75°F) feels uncomfortable and you start to feel sticky with light activity. In such cases, I use the air conditioner on a low fan setting mainly for dehumidifying. The temperature drops only by about one degree, but the 15-20% reduction in humidity makes all the difference. Unfortunately, underfloor heating with cooling does not help in this regard.
In short: I would recommend an air conditioning system in any new build below 500 meters (1,640 feet) above sea level (even more so in older buildings). With a reasonably open floor plan, installing a small 3.5 kW indoor unit at the highest point of the house running on low settings for as long as possible prevents the house from heating up. For about €2500, this provides a level of comfort you wouldn’t have dreamed of. Full agreement. We had air conditioning installed from the start and are very happy with it every day. Power consumption during the hot summer of 2018 was a mere 700 kWh (on hot days and weeks it runs 24/7).
@Leo
I have tried different Daikin models (5 kW, 7 kW, 9 kW) and additionally, I have a generic "KAZ" unit with 3.5 kW.
Now I’m considering installing the 7 kW unit in the ground floor.
In my experience, 2 kW (FXAQ20PAV1) is more than enough per bedroom/room up to 25 sqm (270 sq ft).
Sometimes it looked like this behind the house:
And yes, same here, I have never regretted the installation. But I would have appreciated it if someone had told me during construction: "Run a few lines for air conditioning in the walls."
I have tried different Daikin models (5 kW, 7 kW, 9 kW) and additionally, I have a generic "KAZ" unit with 3.5 kW.
Now I’m considering installing the 7 kW unit in the ground floor.
In my experience, 2 kW (FXAQ20PAV1) is more than enough per bedroom/room up to 25 sqm (270 sq ft).
Sometimes it looked like this behind the house:
And yes, same here, I have never regretted the installation. But I would have appreciated it if someone had told me during construction: "Run a few lines for air conditioning in the walls."
Mycraft schrieb:
@Leo
I have tried different Daikin models (5kW, 7kW, 9kW) and also have a no-name "KAZ" unit with 3.5kW.
Now I am considering installing the 7kW unit on the ground floor.
I found that 2kW (FXAQ20PAV1) is completely sufficient for each bedroom or room up to 25 sqm (270 sqft).
Sometimes the setup behind the house looked like this:
Wow, I assume you got those cheaply or maybe for free? Or did you actually purchase four units? Were the refrigerant lines compatible with each other? Did you install the air conditioning system yourself?Similar topics