Ventless gas heaters are one of the most controversial types of gas heaters in the market today. This is primarily due to the fact that there are certain segments of the market that believeventless gas heatersare actually more harmful than helpful. One thing, however, is certain. These heate...
Ventless Firebox Enclosures for Gas-Fired Unvented Decorative Room Heatersdoi:CSA ANSI Z21.91-2017序言这是ANSI Z21的第三版.91,用于燃气无通风装饰房间加热器的无通风口火箱外壳.它取代了2007年和2001年出版的前两个版本.范围1.1.本标准适用于新生产的无气孔燃烧室外壳(见第3条,定义),以下简称燃烧室,...
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Ventless Firebox Enclosures for Gas-Fired Unvented Decorative Room Heatersdoi:CSA ANSI Z21.91-2007本出版物代表了燃气装饰型无排气管房间加热器的无气孔火箱外壳的安全操作,坚固耐用的结构和可接受性能的基本标准.这是多年来在制造,测试,安装,维护,检查和研究用于天然气利用的无排气管燃气加热设备方面经验的结晶...