Tip & How-To about Heating & Cooling

How to cool big home with small air conditioner(s)

A lot of people have only one or two rooms that can take an air conditioner in the window. Often times, the air conditioner is also rated at a cooling power that would make you believe that there is no way that it can to cool the whole house/apartment. You can crank it to the max to try to cool as much as possible, but then this makes one room too cold and the others still stay too hot. You can try blasting the cool air down a hallway with a fan on maximum speed, but that only works so well. And, it's noisy, too. Well, I have two 260 sqr ft rated room air conditioners and I am cooling 2000 sqr feet of house to a comfortable 72 degrees in all rooms and it's been 95 outside all day. How to do it?

The trick is setting up your home to take advantage of laminar air flow. Set your air conditioner to say 68 degrees and start it in the middle of the morning before it feels hot outside. Put the AC deflectors pointing downward and towards the door. Put fans in the doorways pointing out of the rooms that have the AC. Point them level to the floor (not up) and put a fan to one side near the end of long hallways. Set the fans on the lowest power setting (not high). If the hallway branches out into a bigger room, put a fan in the room that is blowing across at a right angle to the entry, pointing the air flow parallel to the wall. This will circulate the cool air around the room. Keep the fans on low and pointed parallel to the floor, not up!

What you have created is a re-circulating air flow system, much like the North Atlantic Current that moderates the temperatures of Europe. You can check this by taking a tissue paper and holding it up to the top of the doorway. The air flow should be pushing the tissue away from the room without the AC and toward the room with the AC. This happens because the warmest air will be toward the ceiling and you want that warm air to make its way across the ceilings and back to the room with the AC, so that it can be cooled again. The cooled air from the AC will sink to the floor and the fans will gently push the air out of the room with the AC. It will stay low and travel along the floor in the opposite direction and into the warmer rooms. If you crank your fans up, you will create turbulent flow and that will not cool your house as efficiently as will laminar flow. Monitor the outside temperature and when it gets cooler outside by a few degrees, turn the AC to fan for about 10 minutes to eek out the last of the cooling. Then open the windows for the night to take advantage of the free cooling that nature provides. That's it! Enjoy the summer!

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how do i get my portable haier air conditioner cool off my house below 73


Air conditioners can only drop the temperature of the room temperature a maximum of 15 to 20 degrees F. A 95 degree F room temperature can drop to a maximum temperature of 75 to 80 degrees F. If the room temperature drops from 95 to 85 degrees F, Then the problem is having too small of a btu rating on the air conditioner or refrigerant has leaked out the sealed system which can affect the amount of cooling performance. You will have to buy a higher rated btu rated air conditioner if the temperature of the room drops by only 10 degrees F. Air conditioners are rated by how much heat that can be removed each hour. The more humid it is, the more work an air conditioner has to do. They cannot do more work than the btu rating that is listed on each air conditioner.

May 26, 2014 | Haier Heating & Cooling

1 Answer

Kenmore 12,000 BTU Room Air Conditioner ENERGY STAR


How many Square Feet is the ac rated for?How large of room are you trying to cool??

May 27, 2010 | Heating & Cooling

1 Answer

how do i turn it on for the first time


hi there'
turning ac on,there are two switch on control panel of ac.find the thermostat control this signifies the room temperature you want,set this first to a maximum setting.another switch is for the motor compressor and fun motor.rotate the switch to fun first after a couple 15 second rotate again the switch to lo cool setting w8 for 10 to 15 sec. then rotae it again to hi cool there will be a sudden heavy change of blwing air and cooling effect then rotate set the thermosat switch to temperature comfortable to your feeling,observe the cycling process,because the compressor motor stop if the room temperature reached the set up temperature.stopping or switching off just rotate the switch of the compressor motor on off position.have a nice day fix my rate thank s a lot.

May 14, 2010 | Amana PBE12 Wall/Window Air Conditioner

1 Answer

fujitsu ducted air con cant switch on


hi...
Prevent any direct sunlight from heating up the room the unit is in. Clean the dust filter every month or as often as it needs it. Limit using any heat generating appliances such as stoves, ovens, microwave ovens, hair dryers, etc.,..

thank u
rate me!!

May 24, 2009 | Fujitsu 36CS Air Conditioner

1 Answer

blows room temperature air


Hello
Welcome to fixya.
I'm Huuum and happy to assist you

The air conditioning
unit works, but does
not cool the room

• window open
• there are heat sources in the room (burner,
lamp, etc)
• the exhaust hose is detached
• air filters clogged
• Inadequate size of the room (too large)
• close the window
• eliminate the heat source
• connect the exhaust hose
• clean or replace the filters
If all this dose not remedy the problem then you need to see service!

Please remember to leave a rating before you go!
Thank you

Jul 13, 2008 | DeLonghi Pinguino PACL90 Portable Air...

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