Are heat pump hot water systems noisy

September 8, 2021

Mitchel Plumbing Gas

Are heat pump hot water systems noisy

When considering the installation of a heat pump hot water system in your Brisbane home, one question that often surfaces is: Are these systems noisy? It's a valid concern for homeowners and one that Mitchell Plumbing and Gas takes seriously, as the comfort of your home environment is paramount. In this article, we'll explore the noise levels of heat pump hot water systems, factors that influence these levels, and how they compare to traditional water heating solutions.

Understanding Heat Pump Noise Levels

Heat pump hot water systems function by extracting heat from the surrounding air and using it to heat water, a process that involves moving parts and airflow that can generate noise. The level of noise produced can vary depending on the model and make of the heat pump. Typically, the sound is measured in decibels (dB), and most residential heat pump systems operate within the range of 40 to 60 dB, which is comparable to a conversation in a restaurant or background music.

Comparative Noise Levels

When comparing the noise levels of heat pump hot water systems to traditional gas water heaters, it's important to note that gas systems are generally quieter because they don't contain the fans and compressors that heat pumps do. However, the noise emitted by heat pumps is often considered to be low-level background noise, which is usually not disruptive to the average household.

Installation and Location

The installation location of a heat pump can significantly affect perceived noise levels. For instance, a heat pump installed inside a garage or utility room may be less noticeable than one installed adjacent to a living area or bedroom. It's crucial to consider where you should NOT put a heat pump to minimize noise disturbances. Proper installation by qualified technicians, like those at Mitchell Plumbing and Gas, can also ensure that the system operates as quietly as possible.

Neighborly Noise Concerns

Noise concerns are not just limited to the occupants of a home but also to the neighbors. While heat pumps are generally not loud enough to cause issues, it's still important to consider the placement of the unit in relation to neighboring properties. The question of are heat pumps noisy for your neighbors can often be addressed by strategic placement and soundproofing measures.

Seasonal Noise Variations

Some homeowners find that their heat pump hot water system is louder in colder months. This is because the system has to work harder to extract heat from the colder air. Are heat pumps louder in the winter? Yes, they can be, but the increase in noise level is typically slight and should not cause significant disturbance.

Soundproofing Solutions

For those particularly sensitive to noise, or where the system's location makes it more audible, there are ways to reduce the sound. Learning how to soundproof a heat pump involves adding barriers or using materials that absorb or deflect sound. This can include installing the unit on a noise-absorbing base, using sound blankets, or constructing acoustic fences.

Seeking the Quietest Operation

If noise is a primary concern, it's worth researching which is the quietest heat pump on the market. Manufacturers often provide sound ratings for their models, and opting for a system known for its quiet operation can be beneficial.

Unusual Noises

Sometimes, a heat pump may emit strange noises that go beyond the typical operational sounds. If your heat pump sounds like a helicopter, this could indicate a problem, such as a loose part or a malfunctioning compressor, and it would be wise to contact a professional to diagnose and fix the issue.

Value Addition and Replacement Considerations

It's also worth considering the broader implications of installing a heat pump hot water system. Not only can a heat pump add value to a house as a homeowner, but it can also be a more energy-efficient and cost-effective solution in the long term. As for the question of (how often should you replace your water heater, heat pump systems can have a longer lifespan than traditional water heaters, potentially extending the time between replacements.


In conclusion, while heat pump hot water systems do produce some noise, it is generally not enough to be a nuisance. With proper installation and maintenance, the benefits of these systems far outweigh the concerns regarding noise levels. At Mitchell Plumbing and Gas, we ensure that your heat pump hot water system is installed with care to provide you with efficient hot water heating while maintaining the peace and tranquility of your Brisbane home. If you're considering a heat pump for your hot water needs, contact us to discuss the best options for a quiet and efficient system.

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