R
rennschnecke26 Mar 2022 17:18Hello,
unfortunately, it gets extremely warm upstairs in the summer. Therefore, we are considering getting an air conditioning system.
The easiest option would be a portable air conditioner. However, we are bothered by the exhaust hose, which has to be vented outside through an open window.
So, a split system might also be an option, unless you know of a clever solution for portable units.
We would need to cool two rooms (living room and bedroom), which are not adjacent, if that is relevant.
The selection is huge, and the review and information websites are not always as unbiased as they first appear.
Do you have any recommendations for an affordable system?
Best regards
unfortunately, it gets extremely warm upstairs in the summer. Therefore, we are considering getting an air conditioning system.
The easiest option would be a portable air conditioner. However, we are bothered by the exhaust hose, which has to be vented outside through an open window.
So, a split system might also be an option, unless you know of a clever solution for portable units.
We would need to cool two rooms (living room and bedroom), which are not adjacent, if that is relevant.
The selection is huge, and the review and information websites are not always as unbiased as they first appear.
Do you have any recommendations for an affordable system?
Best regards
D
Deliverer26 Mar 2022 21:16The "best" option is, of course, always a permanently installed split air conditioner. This is by far the most efficient way to cool. With a few hundred kWh—and assuming doors stay open and it runs 24/7—you can keep an entire floor comfortably cool throughout the summer. The downside: if you have it professionally installed, expect about 1000€ per kW. So, between 2500€ and 3500€, depending on the unit and installation situation. DIY installation is not allowed. Maybe you know someone with a refrigeration certificate? That could reduce the cost to around 1000€ for a branded 2.5 kW device.
If that is not possible, for whatever reason, the next best option would be a portable split air conditioner. These cost significantly more than the rather useless energy wasters with exhaust hoses, but perform nearly as well as permanently installed units. This is the premium solution for rental apartments where you’re not allowed to drill through exterior walls. It will set you back about 1700€. There are really only two serious manufacturers—one starting with R and one with U. People say U is better...
With these units, be careful not to move them too often, or the hose may become leaky. So don’t put the unit inside every night and take it out again in the morning.
If that is also not an option, you could try to get one of the rare two-hose monoblock units or convert a normal single-hose monoblock unit into a two-hose system. This roughly doubles the efficiency of a monoblock unit.
I would absolutely never consider the last option (single-hose unit with the hose out the window). That simply doesn’t work. You can find plenty of explanations on why this is ineffective.
Edit: If you have an older building and have not yet switched to a heat pump, you can get a 35% subsidy from the Bafa if you use the split air conditioner primarily for heating. I would recommend this as well (down to about -5°C (23°F)), as it is cheaper and produces less CO2 than wood, oil, or gas.
If that is not possible, for whatever reason, the next best option would be a portable split air conditioner. These cost significantly more than the rather useless energy wasters with exhaust hoses, but perform nearly as well as permanently installed units. This is the premium solution for rental apartments where you’re not allowed to drill through exterior walls. It will set you back about 1700€. There are really only two serious manufacturers—one starting with R and one with U. People say U is better...
With these units, be careful not to move them too often, or the hose may become leaky. So don’t put the unit inside every night and take it out again in the morning.
If that is also not an option, you could try to get one of the rare two-hose monoblock units or convert a normal single-hose monoblock unit into a two-hose system. This roughly doubles the efficiency of a monoblock unit.
I would absolutely never consider the last option (single-hose unit with the hose out the window). That simply doesn’t work. You can find plenty of explanations on why this is ineffective.
Edit: If you have an older building and have not yet switched to a heat pump, you can get a 35% subsidy from the Bafa if you use the split air conditioner primarily for heating. I would recommend this as well (down to about -5°C (23°F)), as it is cheaper and produces less CO2 than wood, oil, or gas.
B
barfly66627 Mar 2022 09:57Mobile hose devices are just rubbish. I once had to buy one for the office, and it’s really unusable.
Do it properly with a split system.
Do it properly with a split system.
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