首页
登录
职称英语
Home Improvement MonthlyTypes of Heating Systems:
Home Improvement MonthlyTypes of Heating Systems:
游客
2025-06-11
29
管理
问题
Home Improvement Monthly
Types of Heating Systems: By James Ryan
The majority of American homes are heated with forced-air furnaces that are most commonly fueled by natural gas but also by electricity, liquid propane, or fuel oil.
AFUE is a measure of how efficient the appliance is in using electricity or fossil fuels (oil or gas) over the course of a typical year. An all-electric furnace or boiler has no fuel loss through a chimney. The AFUE rating for an all-electric furnace or boiler is between 95% and 100%. The lower values are for units installed outdoors because they have greater jacket heat loss. However, despite their high efficiency, the higher cost of electricity in most parts of the country makes allelectric furnaces or boilers uneconomic choices. If you are interested in electric heating, you might consider installing a heat-pump system.
Routine Maintenance:
When was the last time you changed or cleaned your furnace filter? Failing to replace or clean the filter regularly can be costly!
Dust and dirt can work their way into the blower and coil assemblies, reducing the furnace’s operating efficiency and eventually causing damage to the motor. Heating professionals say simple dust and dirt are the cause of almost half of their service calls; most manufacturers recommend changing or cleaning filters at least every other month. (Once a month is best.)
Get an Annual Service Checkup:
An annual service checkup by a heating professional is usually a good idea. The technician will check the flues and temperature settings, examine the heat exchanger for cracks, and check the safety mechanisms on natural gas units. A $50-$100 annual tune-up can reduce your heating unit’s operating cost by three to four percent. [br] According to the article, what is NOT true about heating systems?
选项
A、Heating specialists recommend that people clean their filters once a month.
B、They should receive a service checkup once a year.
C、Getting a service checkup can reduce heating costs.
D、Electric furnaces or boilers are being used in most American homes.
答案
D
解析
问报道提及的不是和供暖设施相关的内容。要逐一看选项,了解报道中是否有相关内容。报道的开始部分说,“The majority of American homes are heated with forced-air furnaces that are most commonly fueled by natural gas but also by electricity,liquid propane,or fuel oil.”许多美国家庭使用空气注入式取暖器具,其中大多数使用天然气、电、液化丙烷以及燃油,因此正确答案是(D)。
转载请注明原文地址:http://tihaiku.com/zcyy/4114282.html
相关试题推荐
HomeImprovementMonthlyTypesofHeatingSystems:
HomeImprovementMonthlyTypesofHeatingSystems:
Thistypeofheaterisagoodchoiceforthequickheatingofenclosedspaces.H
Accordingtotheman,whyarehiscompany’ssystemsmoreexpensivethanothers?
Whereisthistalktakingplace?[originaltext]WelcometoWinStarSystems,e
Accordingtotheman,whyarehiscompany’ssystemsmoreexpensivethanothers?
Accordingtotheman,whyarehiscompany’ssystemsmoreexpensivethanothers?
WhatkindofplaceisFamilySecuritySystems?[originaltext]Youhavereachedth
WhatkindofplaceisFamilySecuritySystems?[br][originaltext]Youhave
WhatkindofplaceisFamilySecuritySystems?[originaltext]Youhavereache
随机试题
WhatdoesAlisonorder?[br]Wheredoesthewomansuggestthatthemangetchang
Thebusinesscycleiscomposedofmanyphasesandoneofthemistheexpansi
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsu
依据《实施工程建设强制性标准监督规定》的要求,工程建设中拟采用的新技术、新材料,
赵女士在妇科检查中发现宫颈重度糜烂,宫颈刮片细胞学检查为巴氏Ⅱ级,提示为A.正常
患者女性,60岁,慢性咳喘20年,剧烈咳嗽3天,无咳痰、咯血及发热,半小时前突发
下列雾化吸入常用药物中,起减轻呼吸道黏膜水肿,改善通气作用的是( )A.阿米卡
阿胶的炮制方法宜选用A.炒焦法 B.砂炒法 C.土炒法 D.麸炒法 E.
对于小儿脱水补液的正确方法应除外A.轻、中度脱水可口服补液 B.中、重度脱水应
承担民事责任的方式包括( )。A.停止侵害 B.罚款 C.返还财产 D.
最新回复
(
0
)