QuietCool uses a unique, patented design that uses an acoustical duct attached to an R5 damper box. The result is almost zero noise vibration and whisper quiet operation. This model whole house fan uses the innovative ECM energy saver motor that uses hardly any power while moving extreme amount...
A Quiet Cool whole house fan presents an ideal solution to maintain a cool and comfortable home environment while simultaneously cutting down on energy consumption and costs. These innovative fans operate by drawing in refreshing outdoor air and dispersing it throughout your home, effectively minimizin...
Compare an average of $10 a month for a whole house fan going 8 hours a day to running central air 8 hours a day, which would add over $150 to the electric bill of an average home. Quietcool’s estimate of 75% savings seems to be an underestimate to me. I’m getting something i...
This house fan has now taken over as the unit to cool my house at night time. You get a nice breeze from the windows and the noise level is very low; softer than a standing fan. If you're hesitant on getting one, give them a call. You won't be disappointed. Laura F. ★★...
A whole house attic ventilating fan is disclosed which is installable within an opening in the ceiling of the house from below. A plenum box is installable against the attic-side of the ceiling sheath
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Quiet Operation:Enjoy peace and quiet with Mr. Cool mini-splits. These systems operate at a low noise level, ensuring a calm and comfortable environment in your home or office. Stay comfortable, save on energy costs, and enjoy the convenience of modern climate control with Mr. Cool mini-spl...
Uniquely engineered fan blades provide powerful, yet quiet cooling. The ultra-silent motor produces powerful wind at a noise level as low as 33dB. Inside the indoor space, sometimes the air is not very circulated, which will lead to our physical and mental condition being affected, and fatigue...
2. **except that (B)**:后需接完整从句(主谓结构),而题目空格后是名词短语(the light noise),语法结构不匹配。3. **beside (C)**:意为“在...旁边”,与题意无关。4. **except for (D)**:用于在整体中排除具体细节,且后接名词或名词短语。句子整体描述“夜晚安静”,但需排除“电扇的轻微噪音”...