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Ventilation Fans


About

If there is not enough fresh air inside a room, pollutants can sometimes accumulate to levels that can cause health and comfort problems. By using ventilation fans you can lower the concentrations of indoor air pollutants in your home by increasing the amount of outdoor air coming in.
Nearly all home cooling systems as well as forced air heating systems, do not mechanically bring fresh air into your house. Opening windows and doors, operating window or attic ventilation fans, when the weather permits, or running a window air conditioner with the ventilation control open increases the ventilation rate. Local bathroom or kitchen ventilation fans that exhaust outdoors remove contaminants and pollutants, including moisture, directly from the room where the ventilation fan is located and also increase the outdoor air ventilation rate.

Why ventilation fans

Ventilation fans are an excellent way to ventilate your entire home efficiently, and cheaply.
A ventilation fan is a motorized ventilation device that helps to draw out stale and impure air from your home and bring in fresh air and improve the quality of indoor air.

Types of ventilation fans

Ceiling mounted ventilation fans
Ceiling ventilation fans are those which are installed in the ceiling. These fans push out stale air from your home upwards through the roof.  The ventilation fan is connected to ducting, which is exhausted outside the house through an external vent, like a roof cap or soffit exhaust vent.

Wall mounted ventilation fans
These types of ventilation fans are installed directly on exterior walls. Because they are installed on exterior walls of the home and not on interior walls, the stale air has a direct route to the outside of your home and no ducting work is needed when installing these ventilation fans.

Exterior remote mounted ventilation fans
These types of exterior remote mounted ventilation fans are installed outside your house and drag out stale indoor air instead of pushing it out like others ventilation fans which are installed inside.
Exterior remote mounted ventilation fans are very noisy but the noise remains outside because they are installed outside your house.

Portable Air Cooler

About
A portable air cooler have always been a popular option for lots of people for the obvious reason that they can be easily moved around. They are perfectly suited to smaller environments such as a small room or office as it would take forever to cool down a very large room. One of the greatest advantages of portable air coolers is the fact that they can be taken with you if you are moving home or offices. This means that you are not going to waste any more money on another air cooler if you have to move to another location. A portable air cooler that you can roll from room to room might appeal to you if your window space is limited or if you live in a building where ordinary room air conditioners are forbidden.

How does a portable air cooler work?
An air conditioner cannot create cooling because it only relocates the heat. The heat is removed in two ways, as an actual temperature drop, and as water. The refrigerant pushes the heat outside where it is discharged while the water, called condensate is collected alone and pumped or drained away. After being installed properly, most air conditioners perform these operations mechanically. A portable air cooler must be vented and drained manually by its user but we must not forget that these types of coolers can be easily moved from a place to another.

Types of portable air coolers
There are two different types of portable air coolers. The portable evaporative air cooler uses water to relocate the heat. This type of portable air cooler is very effective in dry climates, as humidity is a product of the cooling cycle. This type of portable air cooler can frequently be found with a 12 volt adapter for cars or boats.
The other type of portable air cooler uses a refrigerant and is very much like the a standard air conditioner window unit, with the exception of that it usually comes on wheels and is made to operate on the room’s floor. They have to be plugged into a standard 120 volt power supply, and a vent must be installed through a near window. A condensate pan must also be dumped from time to time when in use.