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#heat#europe#more#heating#pump#solar#cooling#homes#where#pumps

Discussion (42 Comments)Read Original on HackerNews

rescbr•about 2 hours ago
Solar panels + cooling + heating heat pump is the most logical combination as we are past the point of no return on global warming.

And there's no need to be like the Americans that cool down to 18°C when the outside is > 35°C: simply decreasing the indoor temperature to saner numbers like 26°C is enough, it's summer after all. Less energy usage and it is enough for the body to be happy.

bigstrat2003•41 minutes ago
Americans aren't cooling their homes to 64F in the summer, I have no idea where you get that idea. Generally people will cool their homes to somewhere around 72-78F, which is 22.22-25.56C.
krunck•17 minutes ago
In my experience very few Americans set their A/C to anything above 75F.
antonyt•13 minutes ago
In my experience they absolutely do. The houses by and large aren't very well designed or insulated, and electricity isn't that cheap. In the southeast I rarely see home thermostats set to the 60s or low 70s. Office settings are a different question, though.
bigstrat2003•10 minutes ago
It's hard to accurately generalize an entire country, of course. But in my experience people generally are in the range I stated. I'm sure that there exist people who turn their AC down below 70F, but I've never personally encountered one. And even the low end of my range, 72F, is uncommon in my experience.
Lwerewolf•about 2 hours ago
+ it lowers humidity and moves air.
jurgenburgen•about 2 hours ago
> Solar panels + cooling + heating heat pump is the most logical combination as we are past the point of no return on global warming.

I’ve been feeling confused lately about the news that the far-right parties in UK & France want more AC and the left-wing complain it’s not solving the root problems.

Are people just not aware that heat pumps are a great solution for both heating and cooling, saving energy on heating during winter?

subscribed•about 1 hour ago
Far right parties want more fossil fuels burning for cooling and heating (more coal, more gas, more oil, more water pollution).

And I think that parties saying burning more fossil fuels doesn't fix the problem, like, at all, aren't particularly wrong? And they're also the ones trying to push for more solar/wind energy generation and more heat pumps (that can heat in the winter and cool in the summer).

Not sure what you're trying to convey or where you're taking your data from?

ZeroGravitas•34 minutes ago
Tech to combine radiator based heat pump heating with cooling is relatively new to the market.

I would have assumed air-con was standard in new built homes in southern Europe and less so once you get to more northern places where the load is mostly heating.

Then there are refits, which add another dimension of cost and difficulty.

ragazzina•about 1 hour ago
> Are people just not aware that heat pumps are a great solution

In my European country, people struggle to buy houses, nobody is rushing to do a full house renovation.

Furthermore, the consensus is: heat pumps are great for a new home or a full renovation. Installing a heat pump with old-style radiators makes no sense, because the heat pump heats to a low temperature.

rescbr•about 1 hour ago
You can keep the radiators in place when using mini-split heat pumps..
ZeroGravitas•about 1 hour ago
That's mostly outdated info, modern heat pumps can heat to high temps. They are more efficient if run at lower temps but so are condensing gas boilers, which are the most directly competing technology.
petre•about 1 hour ago
The leftists are free to sweat or freeze to the point of exhaustion then. Modern AC units with heat pumps are just great. I'm going to install one myself soon.
throwa356262•about 2 hours ago
I don't understand this article.

Europe is usually not this hot, hence lack of AC in many places. Floods and earthquakes are also uncommon, hence the buildings in most places are not up to code against, say, Japanese standards.

discopicante•about 1 hour ago
The primary difference being, Europe is not increasing their number of fault lines or bodies of water. The number of days of moderate to extreme heat in Europe have already significantly increased and will continue to.

Furthermore, the costs of modern cooling are infinitely cheaper than solutions, if they exist, for other natural disasters.

I lived in both Europe and the United States and traveled around the world. This article makes a lot of sense to me.

anamax•about 2 hours ago
> Europe is usually not this hot, hence lack of AC in many places.

Europe averages 53k to 175k heat-related deaths per year. The difference depends on whether you listen to the EC or the UN. https://news.un.org/en/story/2024/08/1152766

The comparable number for the US is 4-11k, albeit with about 20% fewer people.

Note that the US is further south than Europe and generally has higher temperatures.

throwa356262•about 2 hours ago
#1 recommendation from the same link:

   Keeping out of the heat: Avoid going out and undertaking strenuous activities when the sun’s at its hottest. Stay in the shade and do not leave children or animals in parked vehicles. If necessary and possible, spend two to three hours in a cool place, such as a supermarket or cinema




Sounds like the issue is not hot homes but people simply not knowing how dangerous being outside under the sun under such temperatures can be
discopicante•about 1 hour ago
The tell here is that it doesn't just say 'stay at home'.

Most upper latitude European homes have been designed for mid-century cool(er) climates. They are extremely efficient at trapping and holding on to heat. Go look at any sub-reddit for central European cities over the past few days and you'll find multiple reports of 35+C conditions inside homes.

Furthermore, you can find plenty of examples over the past week in those same cities of supermarket and cinema ACs in total failure modes. Not to mention most supermarkets are closed on Sundays.

One real problem outside of the home is that there have been plenty of reported cases of drowning. Unclear if this is just statistical with the mobs of people (some of whom cannot swim, or swim well) who are forced to leave their homes to find relief.

shaky-carrousel•33 minutes ago
That's because the US and Europe count heat-related deaths differently. In the US they count deaths caused by heat. In Europe they count deaths worsened by heat.
m4rtink•about 1 hour ago
Also many old houses & modern insulated buildings have a significant heat inertia - so if the heat wave is not too long & you do sane heat management (open windows during the night to cool down the flat/house, keep windows closed during the day) then you will hardly notice the heat in an European home.
ThrowawayTestr•about 2 hours ago
How many old people need to die in heatwaves before you accept that the climate is changing?
pydry•about 2 hours ago
An American decided to be smug because Europe suddenly passed the threshold where aircon went from a nice to have to a necessity.
MengerSponge•about 2 hours ago
AC is far more efficient than most heating methods, but there isn't the same level of censure applied to traditional heating technologies. If you listen, people talk about AC like it's inherently polluting, like it's something to moralize.

Europe historically has not been this hot, but they regularly have heat waves. I remember a 40C heat wave more than a decade ago! That's enough time to add emergency infrastructure, unless you're hoping to snuff old people. When you get your third hundred year flood in a decade it's time to update your priors.

subpixel•about 1 hour ago
I can relate to a certain type of reluctance, in that I live in a part of the US that has never needed air conditioning. I don't look forward to the hassle and expense of installing a heat pump. I don't look forward to the cost of running one. And I won't like resigning to the fact that the summers I've experienced my whole life, as did my ancestors, are over forever.

Of course when it's regularly in the upper 80sF / 30C I will give in. I just empathize.

ErrorNoBrain•about 1 hour ago
I can live without AC, because i'd only 'need' it, for a couple of weeks in the year... and i doubt it'll be worth it tbh
bob1029•about 2 hours ago
I am curious about the power grid situation in Europe. Assume the rate of AC usage was as high as the US (or god forbid Japan), how far behind is the grid infrastructure from where it needs to be?

ERCOT (Texas) has daily swings of up to 50 gigawatts of power in the summer. I am pretty sure it is the most volatile US grid in terms of the demand side. A lot of the transmission infrastructure is purpose built for this exact problem.

m4rtink•about 1 hour ago
There are massive distributed solar deployments (eg. people putting cheap solar panels on their roofs, often backed by batteries) happening right now, those should help offset AC demands quite nicely.
petre•about 1 hour ago
They don't have any problem with impact from EVs on the grid, but god forbid AC units. One could obviously solve the peoblem with rooftop solar, which peaks just when you need AC the most.
revolvingthrow•about 1 hour ago
> sunlight causes most of the heat issues; cloudy days are unlikely to be extremely hot

> solar panels convert sunlight to electricity

> AC converts electricity to cooler air indoors

Ah, if only there was a way to solve those three problems at once. Alas...

As to the "resistance" to AC: is this an actual thing or just something the media made up? It seems that for the most part anyone who wants AC can just buy it, barring exceptions like historical buildings. If people want to cook themselves alive I’m not really seeing the issue, as they only harm themselves (unlike, say, with vaccines where herd immunity is important).

throwaway676712•14 minutes ago
It's just a meme but too-online professional opinion-havers memed themselves into taking it seriously. Many such cases unfortunately
simianwords•33 minutes ago
In Germany I had a dentist appointment and I was soaked with Sweat by the end. Climate activism has taken the place of religion here.

It’s annoying to see peers lecturing others about Climate change and resistance to growth. What’s strange is that the same people have weekly vacations to south of France without any hesitation.

echoangle•about 1 hour ago
I can’t hear this degrowth strawman anymore. There are probably 20 people complaining about people wanting degrowth for everyone who actually advocates for that. It’s not like every politician in Europe is advocating for that.
simianwords•39 minutes ago
Degrowth is absolutely not niche in Western Europe. In Germany and NL, it is the new religion along with free Palestine movement.

Take any moderately educated Zillenial and ask them what they feel passionately about.

People are feeling more and more alienated from large scale projects of humanity. They have also given up on religion itself. What remains is a facade of religion where degrowth and Palestine take act as Pseudo Religion.

Here in Germany I see stickers and Graffiti all the time.

“Fuck the big Tech”

“Fuck big oil”

“ChatGPT bad”

These are the kind of flyers I see. Of course I’m leaving out the Palestine stuff here.

There are close to Zero educated people excited about the idea of growth. Ask them and they would tell you they’d rather have all capitalists done away with return to a past when we were all peaceful and not “destroying the planet”.

Obviously I’m not claiming degrowth is majority. I’m claiming that at least within my bubble, zero people are excited about the potential of growth. And non trivial number of people want to kill growth.

ramisallyouneed•5 minutes ago
As a Dutchman, I was so surprised by the contents of this comment that I finally decided to make an account.

Bringing up Palestine in this discussion is definitely a choice. Relating them as you have is special.

The amount of public figures advocating degrowth is low and declining. And I follow a lot of climate voices.

mthoms•4 minutes ago
[delayed]
JohnBrookz•about 2 hours ago
I remember someone posting their estimated cost of operating a 5090 in Europe and I chuckled.

Why do Europeans keep voting to be poor and miserable I’ll never understand. Anti-nuclear, anti technology.

A few of my friends went to Europe the past year and almost all of them came back disgusted at European outlook on growth and technology.

mittermayr•about 2 hours ago
I’m sorry to hear about your very odd friends, but I suggest you consider traveling more yourself and gather some personal insights of the world. You should very quickly come to realize that Europe is not one place, one kind of people. This isn’t really something one would say, having spent even just a minute in one or two places here that aren’t Germany or France. Odd to read that.
sph•about 2 hours ago
Europe is not a country. Given how many times we must have this conversation, I wonder if you guys are even taught geography in school?
m2f2•about 1 hour ago
Not yet, at least, but close to (thanks, POTUS).

Back to AC... I have to fork out 4000€ to replace an aging AC in a small flat 60sqm (650 sq feet).

Just looking out of my window right now I can see 600 similar places, so that's 2.4mil EUR for a couple of (city) blocks.

As AC is to be added as it won't replace the winter central heating system we got in most condos -- well that's a lot of money.

m4rtink•about 1 hour ago
Then you are being ripped off - I have seen 40000 KÄŤ for a combined heat-pump/AC air/air unit here in the Czech Republic, which is about 1600 EUR. And you are getting a very efficient modern AC & heat pump.
Kim_Bruning•44 minutes ago
Why won't it replace the winter central heating? Can't turn it off?

Or is it because you're in germany and the taxes on electricity actually offset your CoP (Coefficient of Performance)?

subscribed•14 minutes ago
"disgusted at European outlook on growth"?

Well, cancer is growth, nature and vitality, but not quite positive, is it?

foldr•about 1 hour ago
Wasn’t so long ago that you were rather down on the American alternative:

https://news.ycombinator.com/item?id=43167215