環保新體驗

搬新屋後，第一件事就係 seal the whole house. the reason is: it is an old house, nearly 50 years old, so, air leak is no doubt.

air leak is one of the main concern of wasting a lot of energy during winter, cold air keeps getting in and warm air keeps going out. you have to waste a lot of energy, both natural gas and electricity to maintain the temperature of the house. so, maintain an air leak-proof house is very important.

I sealed the whole house, all windows and doors. and I found the furnace operation time is reducing which mean that i am success. However, after a day, i found the windows are frosty and water is accumulated on the bottom. At first, I think there is still air leak, so I do the sealing again, but the situation have no change or even worse.

After searching in the internet, finally, i find the answer, it is not air leak, it is condensation which mean the humidity inside my house is too high, so water condenses on the cold windows, when water is too much it fall into the bottom of the windows. (the more condensation, the better air sealed. which mean in air leak issue, i really really success)

The solution to solve this problem is to drop the humidity inside house by keeping a good ventilation. Which can be done by either open the window or turn on a mechanical ventilation such as the ventilation fan in kitchen or toilet in order to let wet and warm air out and cold and dry air in. It should be done whenever I consume water such as cooking, bathing, doing laundry and etc.

Easy, right? Wait !
I seal the house in order to maintain low energy usage, if I open a ventilation for humid air, exchange between inside and outside, my furnace have to work harder (use more energy) in order to maintain the temperature of the house.

To maintain environmental friendly is not an easy thing. 環保，其實係有基本消費。因為，萬事萬物係連著一齊。