(photo from Living Frugal Tips)
We did a number of experiments over the summer in efforts of fighting off the heat without breaking our wallets over the electricity bill. A and I did a number of brainstorming on how to go about it. So, we decided to do them in phases.
We used a combination on CFL and LED lights in the unit depending on the ceiling height and number of available bulb slots in the room. We use CFL in our high-ceiling areas .
A's idea was to use blackout curtains to keep the light out. We got ours from SM for around 1,000 something per panel. We got ourselves 2 panels for symmetry.
I opted to use reflective or heat-blocking curtains. A colleague of mine from work uses the same idea and bought a silver fabric curtain to reflect sunlight away. I, on the other hand, went of a silver kitchen liner that has foam insulation backing. I was able to buy this Saizen. You could also use a foiled insulation foam roll found in hardware shops. I just opted for the kitchen liner because I just wanted a thinner version that would reflect light and absorb heat sans completely going on the dark side.
Going back to the heat seeping through our living and dining area, it actually took us a while to figure out how to go about it since we couldn't install an exhaust leading out the window. We ended up using solar car vents since it's portable and runs when the sun is out.
We have 2 Iwata evaporative air coolers.
> 200 watts power for 25-30 sqm area
> 20 liters water tank capacity
> 3-speed powerful air-flow
>Multifunctional air-cooler with ionizer, humidifier & 3 operating modes
> Automatic vertical & horizontal swing for optimal air distribution
> With LED display and air-flow temperature gauge
> 24 hours timer with remote control & caster wheels
> Modern & ergonomic design
(black & white finish)
> 60 watts power for10-15m area
> rotary type air louver (automatic)
desktop, wall-mounted or floor standing with wheels
> 18 liters water tank capacity
> with remote control
Another energy-saving practice that we do on hot days is that we change the rotation of the fans to a counterclockwise motion so that it draws the hot air up.
I can say that our energy-saving efforts are working and paying off. We've still managed to be aircon-free and our electric bill has been consistent despite the word I've been hearing about lately about people having electricity bill increase issues.
We're still exploring other options that will help us save on our energy consumption (aside from waiting for a more affordable photovoltaic cells). Any suggestions that you guys have been using?