For example, the Lennox SLP98V Variable-Capacity Gas Furnace is at least 50 percent quieter than competitor's furnaces, making the SLP98V gas furnace the quietest furnace you can buy1.
If you add an adjustable baffle at the furnace it will basically cut down on the airflow to that room. You could also look at putting a 90 degree turn into the flexible duct to cut down on the velocity of the air and maybe dampen some of the sound from the unit.
Quieter Operation
Two-stage furnaces are quieter than single-stage furnaces due to their slower operating speeds and ECMs. Single-stage furnaces produce loud noises when they turn on and off.
For example, a smaller duct system could contribute to less air circulating through your home. This means that your new furnace is noisier because the larger size of its components allows you to receive more airflow.
Cons. Two stage furnaces are generally a solid choice for most homeowners, but they cost more than single stage. They also will require a new thermostat if you are transitioning from a single stage furnace in order to control the additional low-to-high fan options being added to your home.
Today's furnaces are not only more efficient and safer but also significantly quieter. Central to this development is their focus on sound management.
The duct silencers enable maintaining proper acoustic parameters in the rooms – even reducing noise in the rooms which require a high degree of acoustic comforts, such as e.g. sleeping rooms or reading rooms. The noise can be generated not only by the flow of air through the ducts.
Goodman's units are famed for their quiet performance. However, if your furnace is installed near a high-traffic area of your home, you may want to curtail operational noise with this sound reduction kit.
Trane air conditioners have sound levels as low as 57 dB and heat pumps have sound levels as low as 43 dB in their quietest mode. With Trane systems, you can rest assured that our high-efficiency compressors and specially designed tonal envelopes provide low sound levels in both air conditioners and furnaces.
Many of the Lennox products installed by our skilled Fenix Heating and Cooling team can be expected to run at levels below 70 decibels.
Mini-split or ductless air conditioning systems such as those by Fujitsu, Mitsubishi, and LG are among the quietest heating and cooling systems on the market, with an average noise level of 32 decibels. They also offer some of the highest SEER ratings available, with top-of-the-line systems pushing 30 SEER.
Don't worry; older furnaces tend to make sounds and are generally noisier than newer heating systems. Even if your heater is on the older side, it shouldn't make too much noise so that it disrupts your daily activities.
Quiet operation
Rheem's top furnaces feature the company's patented heat exchanger that offers improved air flow and reduced noise.
Lining your ductwork with Udderly Quiet Fabric-Covered Foam helps reduce noise from the air in your HVAC system without risking a fire. With thicknesses ranging from one to three inches, you will find the right level of sound deadening to fit inside the ducts.
It is best to place the Duct Silencer within 2 - 4 feet of the blower / ventilator for maximum noise reduction.
Trane is widely regarded as one of the top brands when it comes to quiet operation. Their Trane XV20i is a standout model known for its extremely low noise levels. Equipped with variable-speed technology, this furnace adjusts its speed to maintain consistent indoor temperatures, which helps to minimize noise.
Fix Damaged Insulation
This may take some time, but it's the best way to quiet howling noises. You can also use some insulation foam spray or expanding foam in any small crevices you find around your furnace fan blower.
On a normal day, your home's furnace might make a little noise as it starts up, when it's turning on, and then when it turns off. You can always expect to hear some noise from the furnace. The thing about this noise is that it should never be disruptive.
Conclusion. In summary, the average cost of a furnace for a 1000 square foot home can range from $2,500 to $5,000, depending on various factors.
Long-term savings on energy costs.
Two-stage furnaces cost more to purchase and install than traditional models. But factoring in their 20-25 percent fuel efficiency advantage, and assuming a normal lifespan of about 20 years, the extra cost will be more than erased by the cumulative energy savings.