proper sizing of room airconditioners

Singapore: Where Air Conditioners Live

Image by pmorgan via Flickr

Many people buy an air conditioner that is too large, thinking it will provider better cooling. However, an oversized air conditioner is actually less effective — and wastes energy at the same time. Air conditioners remove both heat and humidity from the air. If the unit is too large, it will cool the room quickly, but only remove some of the humidity. This leaves the room with a damp, clammy feeling. A properly sized unit will remove humidity effectively as it cools.

wen buying a new AC…check out d table bellow:

Room size : Horsepower: Air condition type
15 m2: 3/4 horsepower: Window type
16 – 20 m2: 1 horsepower: Window type
21 – 24 m2: 1.5 horsepower: Window type
25 – 30 m2: 2 horsepower: Window type
31 – 45 m2: 2.5 horsepower : Window to Split type
Over45 m2: 3 horsepower: Window to Split type

inverter type ACs have d higher energy efficiency ratio (EER). dey r a bit more expensive but will b more cheaper in d long run coz of deir efficiency. wen buying power consuming appliances or equipment…. always consider d total life cycle costing, i.e. check out d energy or fuel consumption of d unit during d entire time dat u’ll b using it. u’ll b surprised dat cheaper units will cost more in d long run!

….energy efficiency is a must…..wasting energy is unacceptable…..

Co-operative good for everyone tv commercial

Co-operative good for everyone tv commercial – full length version.
Song is Bob Dylan Blowin’ in the wind
alternate sites or here

National Geographic Feature on PlayPump Water Systems

evaluation of a ref clock saver

refs & freezer’s compressors continuously work on a cycle even at night wen nobody’s using them….waste of energy. a ref clock saver limits d compressor work cycle depending on d time d user sets it 2go2 sleep. if ur ref or freezer is properly insulated, e.g. d gaskets r tight or it’s always left properly close & u wana save some money den d tronix ref clock saver can be useful 4u….

a ref clock saving device was evaluated using an efergy monitoring instrument. d manufacturer’s claim is a little bit more than that of d efergy result (at least its not a bogus claim after all). 2download d ppt file in pdf format, pls. click d link bellow:


4more info on energy saver products, visit:

World Environment Day, June 5, 2010

matthias gelber, d greenest person in d planet 2008….sends his message on world enviro day…….how can i disagree????

stoplight w/ timer

A red and yellow traffic light. Based on Image...

Image via Wikipedia

wat do u do wen d stoplight becomes yellow? do u slow down or do u speed up 2beat d red light? sudden acceleration can increase fuel consumption & unnecessary breaking can waste energy. Less emission can be achieved if we can see how much time we have wen one s in front f d stoplight.

hope metro manila will install stoplight w/ timers in d very near future…..

stoplight w/ timer in india

stoplight w/ timer in phuket, thailand