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Old 01-01-2006, 07:38 AM  
bernstein
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Default Central or Room ?

Does the whole house need to be air-conditioned or would cooling in one or two rooms be sufficient?



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Old 01-01-2006, 10:01 AM  
F_Eddie
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Room air conditioners offer an effective, low-cost approach to providing comfort in a small space, up to three rooms, with minimum installation effort. Central air conditioners and heat pumps are used to cool the entire space. Central air conditioners are cooling-only products, whereas heat pumps provide winter heating as well. The cost of a heat pump is greater than that of a central air conditioner, which is greater than that of a room air conditioner.



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Old 01-01-2006, 02:10 PM  
CTodd
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If you are currently renting your home or apartment or if you are planning to move in the near future, a significant investment in either a central air-conditioning system or a heat pump probably does not make sense. However, a room air conditioner can be moved with you and reinstalled in another residence.

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Old 01-01-2006, 03:08 PM  
F_Eddie
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Some room air conditioners, particularly those with larger capacities, will require a dedicated electrical circuit or have specific requirements regarding the current rating of the wiring and the breaker. Before you buy, investigate your electrical system. Identify which other electrical loads are on the circuit that you plan to use, and with the help of an electrical contractor, check existing wiring to determine how much additional load can be safely added. If a new circuit is needed, it should be installed by a qualified electrical contractor and inspected for conformity with the electrical code.

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Old 01-01-2006, 05:39 PM  
bernstein
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What can I do to reduce the need for mechanical cooling in my home ?

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Old 01-01-2006, 09:58 PM  
rabadger
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Use blinds or drapes on the windows. Make sure they are closed before the sun starts shining through.

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Old 01-02-2006, 04:21 AM  
F_Eddie
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Caulk and weatherstrip to seal air gaps, and ensure that the attic and exterior walls are insulated to meet or exceed the minimum recommended levels to minimize heat transfer to the interior.

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Old 01-02-2006, 11:48 AM  
CTodd
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Turn on the kitchen rangehood fan when cooking, if it exhausts outside, and turn on the bathroom fan while bathing to minimize moisture buildup in the space.

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Old 01-03-2006, 04:25 AM  
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Use awnings, blinds or drapes to keep direct sunlight from entering the living space. Deciduous trees planted on the south and west sides of the house and wide roof overhangs will reduce solar heat gain to the interior in summer, while having only a small effect on heating in winter. Light-coloured exterior finishes will also help reduce solar heat gain year-round.

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Old 01-03-2006, 01:09 PM  
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Turn off lights and appliances that are not needed. Plan heat- and moisture-generating activities (cooking, dish washing, drying clothes and bathing) for cooler morning and evening hours. Consider using appliances with time-delay controls. In addition to generating heat and humidity at a less noticeable time (after midnight, for example), your air conditioner will operate more efficiently in the cooler night hours.



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