romm 0 Report post Posted July 5, 2007 I am installing system 2 air con in 2 weeks time in our 2 bedrooms. However, one of the rooms has a ventilation panel at the top, with slanted glass panels and another room has a bedroom door with airvents. Do we need to seal up these openings? Checked with our aircon supplier Gain City but they said it is not necessary as cold air sinks and it is good to have ventilation.However, some friends have advised that if hot air is allowed to get in, the air con has to work harder and it will use more electricity.Any advice would be appreciated. Thanks. Share this post Link to post Share on other sites
Brainstorm 0 Report post Posted July 6, 2007 I am installing system 2 air con in 2 weeks time in our 2 bedrooms. However, one of the rooms has a ventilation panel at the top, with slanted glass panels and another room has a bedroom door with airvents. Do we need to seal up these openings? Checked with our aircon supplier Gain City but they said it is not necessary as cold air sinks and it is good to have ventilation.However, some friends have advised that if hot air is allowed to get in, the air con has to work harder and it will use more electricity.Any advice would be appreciated. Thanks.It depends on your usage then, if you only on for 2-3hrs at night before sleep, then it should be fine. Give (some cold air will escape) and take (some fresh, but hotter, air will enter). At night still ok as outside temperature is lower.If you usually on for long hours.... then better seal it up. Share this post Link to post Share on other sites
gothique 0 Report post Posted July 13, 2007 i will definitely seal it up! cuz i like cold aircon when i sleep. Share this post Link to post Share on other sites
Warrior88 0 Report post Posted July 13, 2007 I opt for seal up .........But for ventilation... HDB have some rules....some kind of ratio Like also u need to casement or sliding window ...not sure lah... lost touch ...already Share this post Link to post Share on other sites
