Beating Summer Heat With Smart Fans, AC Controllers and Shading
When summer hits, most people do one of two things: suffer, or slam the AC remote to “16°C” and hope for the best. Both options are terrible in their own way.
A smarter approach is to treat cooling like a team sport. Fans, AC, and shading all handle different parts of the job. If you let each one do what it’s best at, you can stay comfortable with less noise, less cost, and fewer “it’s still hot and I’m paying a fortune” moments.
Here’s how to set that up in a normal apartment, not a fancy smart villa.
1. Start With The Goal: Comfort, Not Just “Lowest Number on the Remote”
Cooling isn’t only about air temperature. How you feel depends on:
- Temperature
- Air movement
- Humidity
- Sunlight hitting your skin or surfaces
If you only attack temperature with AC, you end up overcooling the room because the sun is blasting in, air is still, or the humidity is high. Smart gear lets you attack all four: move air, block heat, dry the air a bit and drop the temperature a reasonable amount.
2. Smart Fans: Doing The Cheap Work First
Fans don’t lower room temperature, but they make you feel cooler by boosting evaporation on your skin. They’re cheap to run, quiet, and underrated.
Make your fan “smart”
You don’t necessarily need a Wi‑Fi fan. A normal ceiling or pedestal fan plus a smart plug already gives you:
- Timers (turn off after you fall asleep)
- Schedules (on in the evening before you get home)
- Voice control (“turn on the bedroom fan”)
- Auto‑off when the room is empty (via presence or simple time rules)
If your fan has multiple speeds and always starts at your favourite setting when powered, the plug approach works perfectly.
Where fans shine
- Evenings and nights when outside temperature drops but rooms are still warm.
- Transitional days where AC feels like overkill.
- Working at a desk: a directed fan often solves “I’m hot” better than freezing the entire room.
Use fans as your first response to mild heat and as a partner to AC on really hot days.
3. Smart AC Controllers: Teaching Old Units New Tricks
A lot of us have “dumb” split ACs with infrared remotes. Smart AC controllers (IR blasters) basically learn your remote and let your phone or voice assistant press those buttons for you.
What a smart AC controller does
- Lets you turn the AC on/off from your phone
- Adjusts temperature, fan speed and mode remotely
- Can run schedules or geofencing (“turn on when I’m near home”)
- Often has its own temperature and humidity sensor for better control
You don’t replace the AC, you just take over its brain.
Simple, high‑impact automations
-
Pre‑cool instead of over‑cool:
Turn the AC on a bit before you arrive, to a sensible 24–26°C, instead of blasting it at 18°C the whole evening. -
Sleep curve:
Start at your ideal falling‑asleep temperature, then raise it 1–2 degrees after a couple of hours so you don’t wake up freezing. -
Away mode:
If nobody is home for a while, turn the AC off or let the room drift a bit warmer, then cool again when you’re on your way back.
Let the controller handle timing and small tweaks; you just decide what “comfortable” looks like for you.
4. Shading and Curtains: Don’t Let The Heat In
The cheapest watt of cooling is the one you never need to generate. Direct sun turns glass into a radiator.
Use shading intelligently
- Close blinds or curtains on windows that get direct sun during the hottest hours.
- If possible, use light‑coloured curtains or reflective blinds in those spots.
- In rooms you don’t use during the day, keep curtains closed as the default in summer.
If you have smart blinds or curtain motors, turn that into a routine:
- Open in the early morning for light when it’s still cool.
- Close automatically before the sun reaches that window.
- Reopen in the evening when outside air is cooler.
Even without automation, committing to a “summer shading habit” reduces how hard your AC has to work.
5. Put It All Together: A Typical “Smart Cooling” Day
Imagine a hot day in a small apartment.
Morning
- Blinds/curtains open for natural light and some fresh air if outside isn’t too hot.
- No AC; maybe a fan on low while you get ready.
Midday / Afternoon (hottest period)
- Curtains closed on sun‑facing windows.
- AC controlled via smart controller keeps the room stable at 24–26°C instead of cycling wildly.
- Ceiling or pedestal fan on, so you can tolerate a slightly higher AC setpoint while feeling just as cool.
Evening
- Sun moves off the windows; curtains can open again if you want light.
- As outside temperature drops, reduce AC usage and lean more on fans for comfort.
Night
- “Sleep” scene:
- Lights dim warm.
- AC set slightly cooler at the start, then scheduled to climb a bit as your body cools down naturally.
- Fan on low for air movement and gentle noise.
The result isn’t just comfort. It’s comfort without that “guilty electric bill” feeling.
6. Humidity: The Hidden Part of Feeling Gross
In very humid places, 26°C with high humidity can feel worse than 30°C in dry air. Smart control can help here too.
- Use AC “dry” mode or a small dehumidifier controlled by a smart plug when humidity spikes.
- In extremely dry climates, a humidifier may make higher temperatures feel more comfortable on skin and throat.
Tie these to a humidity sensor if you have one, or just to simple time‑based routines (e.g., dry mode for an hour in the evening after cooking).
7. Presence And “Don’t Cool Empty Rooms”
The smartest cooling is the one that stops when nobody needs it.
If you’re already using presence detection or simple phone‑based geofencing, connect it:
-
When the last person leaves home:
- Turn off AC.
- Turn off fans that are on smart plugs.
-
When someone arrives during hot hours:
- Pre‑defined cooling scene kicks in: AC on at moderate temp, main fan on, key blinds closed if still sunny.
Even without advanced presence, basic timers (like “cut AC after 2 hours unless I explicitly restart it”) can prevent accidentally running it half the night.
8. Where To Start If You’re New
If you’re starting from scratch and want to improve summer comfort without drowning in gear:
-
Fix shading first.
Curtains or blinds you actually use. Even non‑smart ones make everything else cheaper. -
Add smart control to fans.
A couple of smart plugs and simple schedules already make a difference. -
Add a smart AC controller.
Once you can time and tweak the AC, you’ll wonder how you managed without it. -
Optional extras:
- Humidity‑aware routines if your climate demands it.
- Smart blinds if you want full “time of day” automation.
The idea isn’t to build the most high‑tech cooling system possible. It’s to stop fighting summer with brute force and instead let a few well‑chosen devices quietly do the hard work for you, while you just enjoy not sticking to your chair.



