You expect your home’s HVAC system to produce certain noises when the equipment is running. Indoors, you’re likely to hear the blower unit operating, and possibly some incidental sounds from the ductwork. Outdoors, you’ll hear the loudest noise coming from two main components: the condenser fan and compressor motor.
The exact sound levels produced by your HVAC system can vary, depending on the:
- Simply put, reputable manufacturers build higher-quality equipment that’s constructed more durably.
- Older HVAC equipment tends to have fewer sound-reducing features, and components can get noisier as they age or if problems develop.
- Generally speaking, larger capacity equipment makes more noise when it’s operating.
- Installation quality. Poor installation can result in extra noisy operation, like an air handler or compressor that rattles because it’s off-balance, or air ducts that creak, pop and ping because they’re damaged or not attached securely.
If your existing equipment makes a lot of noise or unusual or alarming new sounds have developed, don’t hesitate to contact a dependable HVAC professional. A pro can diagnose any emerging issues that need repair, or offer you solutions to lessen the noise level.
Comparing New HVAC Unit Sound Levels
If you’re considering upgrading your HVAC, it’s easy to compare the noise levels of different models by checking the decibel (db) ratings. Quiet indoor components are rated around 20 db, and outdoor units below 60 db. You can also opt for a new system with sound-mitigating features like:
- Variable-speed blower. These blowers operate ultra-quietly and efficiently because they start off on low, ramp up incrementally and then operate on the lowest speed setting necessary to maintain comfort.
- Sound-reducing compressor cabinet. The quietest outdoor units have an insulated cabinet, vibration-isolating mounts, and a specialized grill to decrease airflow noise.
- Direct-drive condenser fan. A precision balanced, direct-drive condenser fan also helps minimize noise coming from the outdoor unit.
- Discharge muffler. A muffler quiets the compressor by smoothing pulsations and vibrations on the discharge lines.
For expert advice about the sound levels of new or existing HVAC equipment in your Dayton home, contact us at Ace Hardware Home Services.
Our goal is to help educate our customers in Dayton, Ohio about energy and home comfort issues (specific to HVAC systems).
