Lower the heat in the house! Awning? Stationary AC? Portable AC?

[prototypen]

I was so lucky that just shortening the arms on a Jula awning makes it reach all the way down.

Protte

 

[Noseone]

Sounds pretty unnecessary to spend 3000-4000 SEK on a solution that might not hold up in the long run. If you set up an awning later, you have no use for blinds at all. I'm of course referring to buying awnings that can be pulled all the way down.

Blinds stop some of the heat inside the window, but the window becomes like a radiator more or less. Roller blinds are obviously worse as the "radiator" stands further into the room.

Well, it reflects away a lot of heat. A smaller area gets heated, which then cools down significantly faster than the air volume inside and the floor that the sun would otherwise hit.

 

[snowjim]

Well, it reflects away quite a bit of heat. A smaller surface is heated which then cools down significantly faster than the air volume inside and the floor that the sun would otherwise hit.

Sure, I understand that it makes a difference compared to not having anything at all, but the difference between a roller blind or blinds inside a glass feels minimal and we already have roller blinds.

 

[Noseone]

I mean that it is worth it.

 

[stf01]

Can't you lower the heat if you open up the windows and create a good cross draft? Experiment with which windows to open for the best draft. Sturdy good mosquito nets in window frames and doors of course, so they can really stay open.

We might have more "luck" with wind here, but it works well. Maybe there are 2-3 days per year when it doesn't help due to a tropical climate.

Otherwise, I would invest in awnings and a good A/C. I hate having it too warm and am happy to pay the extra electricity cost.

 

[fredl]

If we had better awning fabric it might have made a bit of a difference. But the facade brick retains a lot of heat, so just running the cooling for a short time in the evening and then turning it off doesn't work. I sleep poorly if it's too warm, so I'm happy to pay the cost for active cooling as long as there's electricity available at a reasonable price. If you have geothermal heating, free cooling might be an option, but you'd probably need to combine it with awnings due to the lower cooling effect. It's also a bit more complex to install.

 

[snowjim]

But if you have to start somewhere, what do you think gives the best effect, awnings or air/air (placed in the hall)? Wind-controlled awnings will probably cost quite a bit more than an air air does.

 

[Noseone]

You'll never get down to 18-19 degrees after a day with 25-26 outside if you haven't gotten an l/l-pump. A simple one of those you can get for 7-8000 kr.

 

[Micke64]

There is nothing to compare with a LLVP. If the air is warm and/or humid outside, it will never be cool inside regardless of how much cross-draught or awnings you have. The comfort with LLVP is unmatched. It is also cheap to operate.

 

[Anna_H]

Awnings are very useful! They should be down as long as the sun is shining on that side.

Ventilate in the morning when it's still cooler outside than inside. Then close windows and doors and turn off the fan. If it's 30 degrees outside in the sun and a fan bringing in fresh air, it's actually bringing in the heat from outside. I believe that's the main culprit.

My husband thought I was being silly for closing everything when it was hottest, saying that the breeze cools things down. But I tested it for a day. Since then, the house is kept closed when it's hot outside.

AC cooling from an air/air unit effectively lowers the temperature, but if the ventilation fan is on, new warm air is drawn into the rooms with inflow, making it expensive.

 

[snowjim]

Awnings are very useful! They should be down as long as the sun is shining on that side.

Ventilate in the morning when it is still cooler outside than inside. Then close windows and doors and turn off the fan. If it's 30 degrees outside in the sun and you have a fan bringing in fresh air, it's actually bringing the heat in from outside. I think that's really the main culprit.

My husband thought I was being silly for closing everything when it was the hottest, saying it cools if there's a breeze. But I got to test for a day. Since then, the house is closed when it's hot outside.

AC cooling from an air/air unit lowers the temperature effectively, but if the ventilation fan is on, new warm air is drawn into the rooms with supply air, making it expensive.

Aha, I'll have to try that! Thanks!

 

[Lolight]

Having a similar problem. I've been thinking about building air ducts from the basement to the rooms that are warm. And then pump up cold air from the basement to these rooms. As it is now, it is actually too cold in the basement.