如果您要进行厨房翻新，请不要忽略炉子的通风问题。良好的射程引擎盖会从烹饪中捕获烟雾，热量，蒸汽，气味和油脂，然后将其渡轮到外面。将引擎盖视为与您的炉灶一起使用：打开燃烧器时，打开通风。

To help you navigate the bewildering (and expensive) world of vent hoods, we’ve created a map to guide you through the crucial issues. Answer the questions in order to figure out what kind of hood best suits your needs.

你能发泄到外面吗？

真正的排气引擎盖，也称为管道引擎盖，具有金属管道，可将排气装置到您的房屋外部（通过屋顶或侧壁）。如果可能的话，请选择一个风管罩。无管引擎盖简单地循环空气（以及烟雾，油脂和气味），效果远不如。

How big is your stove?

The bigger your cooktop and the more powerful your burners, the more heat your cooking will generate—and the more vent power you’ll need. Also, if you tend to cook over several burners at one time, you’ll want more power.

您将在引擎盖上安装多高，其尺寸将是多少？

For maximum exhaust performance, range hood manufacturers recommend installing the hood about 30 inches above the cooktop surface. If you plan to install the hood any higher than that (many cooks do), you’ll need more airflow and therefore a more powerful hood. Another way to improve the hood’s effectiveness is to buy a hood that extends beyond the sides and front of the cook top (and beyond the back in the case of an island installation).

How much power do you need in your hood?

Ventilation airflow is measured in cfm (cubic feet per minute), which refers to the amount of air the hood sucks in. The maker of your range can tell you how much power you need in a vent hood, or follow this simple formula to get a ballpark cfm figure: add up the maximum Btu capacity of all your gas burners and then divide by 100. (Btu is a measure of heat generated by the cooktop burners.) For example, a gas cooktop with four 15,000 Btu burners would need 600 cfm of vent power. If you add a griddle, grill, and extra burners, or as noted previously, if you install the hood more than 30 inches above the cooktop, you’ll need to compensate with increased air flow (cfm) or greater hood area. (For electric cooktops, use 7,000 Btu per burner to calculate.) Determining the appropriate airflow for your needs is key to proper ventilation. Too little cfm and the hood will be ineffective. But too much cfm can result in excess noise, as well as airflow problems in other parts of the house.

Where will you mount the hood?

Mounting will probably be dictated by your kitchen layout. Hoods can be mounted under wall cabinets, on an exterior wall without cabinets, or dropped down from a ceiling for an island cooktop. If a hood isn’t a practical design choice for you, consider downdraft ventilation, a more compact solution.

您想要什么额外的功能？

Once you nail down the all-important power and mounting questions, you can consider other factors such as noise (measured in sones; the lower the number, the quieter the hood); lighting options; warming lamps; filter cleaning reminder lights; or remote control.