Air Source Heat Pump Noise at Night

The noisy heat pump in our new home keeps us up at night. what can we do?

How noisy is the heat pump?

Both the indoor and outdoor components of a heat pump can generate some noise. On average, the sound level of most modern heat pump outdoor units is around 60 decibels, which is equivalent to moderate rainfall or normal conversation. Some ultra-quiet models have lower sound level ratings. The sound level level of a heat pump indoor unit is usually between 18 and 30 decibels.

Each heat pump system has a different sound level rating. This rating is used by most manufacturers in system technology

Specified on the spec sheet and represents the sound, measured in decibels, produced by the heat pump when operating at full capacity. The noise is produced by fans and compressors. The fan model and speed, as well as the airflow and pressure flow of the system, can affect the noise level produced by the fan.

When shopping for a heat pump, look for these features to reduce noise:

1. Variable speed fans and compressors

2. Soft start and stop function

3. Night/Silent Mode

4. Insulated compressor

When installing a heat pump, ask your contractor about the best location for an outdoor heat pump unit and how that location affects the noise level of the system. Best practice calls for placing the outdoor unit away from windows and adjacent buildings, and mounting it on a sturdy base, such as concrete pads or blocks with vibration-absorbing pads to reduce noise. Using barriers such as fences, landscaping, or decks can help disrupt the transmission of noise to your home and neighbors. Be sure to ask your contractor about any relevant municipal residential noise control ordinances at different times of the day.

In this article, we've answered the question "How noisy are heat pumps?" and explored in more detail how heat pumps can reduce noise. If you have any questions about heat pumps, or you are considering installing a heat pump in your property, please contact us today for an air source heat pump quote or a ground source heat pump quote.