2006-10-29 15:02:44 · 3 answers · asked by Ian 1 in Environment
One is hot, one is cold. DUH!
2006-10-29 15:05:08 · answer #1 · answered by Barbara 6 · 0⤊ 0⤋
most all cooling systems operate in the same way. hot air from the inside of the house is circulated over coils that have a refrigerant in them. as the air passes over the air is cooled and returned through vents. the three most common types of heating systems are gas pack, heat pump and heat strips. each of these is rated by BTUs (British Thermal Units). the larger the BTU number is the larger the furnace is and the more heat it will produce. larger homes require larger units. another rating these units receive is a seer rating. the higher the rating the more energy efficient the unit is. it is usually best to pay extra for the units with higher seer ratings. a seer rating of 13 is usually good enough for an average size home.
look at the unit you have now and check for these numbers. if the unit heated and cooled your home effectively you may want to replace it with a unit that has similar ratings. today's units are more advanced than say 10 yrs ago. so even an exact replacement it should do a better job than the old one. make sure you get several bids from several sources. let each know that you are shopping. after the first sales call make sure you leave the other bids where the competitor can see them. the business is highly competitive and this will insure the lowest bids.
2006-10-29 15:31:30 · answer #2 · answered by handyman5218 3 · 0⤊ 0⤋
heating systems produce heat.
cooling systems produce lower than ambient temperatures.
2006-10-29 15:45:30 · answer #3 · answered by blowmymind 2 · 0⤊ 0⤋