Are you wondering, “Can I put a bigger blower motor in my furnace?” As long as your HVAC system can accommodate motors with a larger diameter, it's possible to upgrade to a bigger motor.
The answer is YES. Can it be done better? Yes but not by much. I'm sure some people out there who are familiar with how a furnace works will be able to come up with a better way in regards to how to control the booster fan, like using a pressure switch or choose other outputs on the controller furnace board.
Once you cut the power, you can remove the cover of your furnace to get access to the control board. Adjusting the pulley on the blower driver motor lets you increase or decrease the blower speed. Refer to your owner's manual to find out exactly what the pulley and other applicable parts look like.
This can be caused by a loose fan belt, or a dirty motor. Solution: First, clean the blower fan and the area around it. It has to deal with a lot of air, so it naturally becomes dirty over time. If that doesn't fix it, the fan belt probably needs to be replaced.
Are you wondering, “Can I put a bigger blower motor in my furnace?” As long as your HVAC system can accommodate motors with a larger diameter, it's possible to upgrade to a bigger motor.
Cubic feet per minute (CFM) ratings measure the volume of air the blower moves. Blowers with higher CFM ratings can move more material. Some vacuum-capable models include larger-diameter chutes or tubes, which help collect leaves.
The standard settings for most furnace fan limit switches are 200°F to shut off the burner, 130°F to turn off the blower, and 100°F to turn the blower back on.
Change of fan location to increase blower efficiency
Relocating your blower to reduce its length of runs and straightening bends can help you reduce energy consumption by 5 to 30 percent.
Replace the speed controllers
The best thing you can do to improve your ceiling fan's slow speed is to replace the speed controller with a compatible one.
Running it continuously may lead to more frequent maintenance and repair needs. However, the added comfort and air quality benefits often outweigh these concerns. Noise: If you're sensitive to background noise, you might find the constant hum of the furnace fan bothersome.
Check Your Vents & Ducts.
Make sure your vents are open and unobstructed. Sometimes belongings or furniture can inadvertently cover them, blocking airflow and preventing heat from reaching the room. Also, do not close vents in unused rooms as this can cause airflow issues as well.
Do Duct Booster Fans Work? In many cases, duct booster fans reduce temperature differences between rooms; they do work. Unfortunately, they don't address the underlying causes of poor HVAC performance in the first place.
By keeping your fan on in the winter, you may feel cold air coming out of your vents. Although the air temperature will be similar to the space temperature, your house will feel cold. Your furnace filter will clog up quicker (even though that means it's working), but you will have to adjust your filter more frequently.
Furnace Blower Options
In essence, the unit is either operating at full capacity when the thermostat calls for heating, or it is turned off when the demand is met. Single speed blowers are factory calibrated to operate between 1200-1800 CFM, which will generally meet the requirements of a 1000-2000 square foot home.
No, you should not put a bigger blower motor in your furnace. The manufacturer designed the system to house and power specific components. Mixing and matching these components could have disastrous consequences.
What Is the Best Speed for My Blower Motor? In the interests of efficiency, your blower motor should be moving at least 400 cubic feet of air per minute for every ton of your furnace.
Some homeowners naturally worry about the risks of a breakdown if they run the fan all the time, but this will not be a concern for you if your HVAC system was properly installed and maintained. The only possible exception here is a very old fan system, which should generally be replaced in the near future anyways.
Common issues like leaks, disconnections, or obstructions within the ducts disrupt the flow of cooled air, causing rooms farther from the HVAC unit to suffer the most. In some cases, inadequate insulation of ducts can allow heat to infiltrate, further exacerbating the problem.
Furnace Not Blowing Hard Enough
If the furnace blowers are generating heat in insufficient quantities, the issue is likely due to either a dirty motor or a loose blower belt. The motor can accumulate dirt over time and the gradual buildup can wear down the system.
Weak or Absent Airflow
The problem could be due to a clogged blower from accumulated dust or debris. It could also be due to leaky air ducts or a bad capacitor. Experts recommend that you schedule routine maintenance to diagnose the problem to determine if something needs repair or replacement.
CFM (cubic feet per minute) measures the volume of air a leaf blower can move in one minute. The higher the number, the greater the amount of debris you can move.
To increase the static pressure of a blower, you can optimize the design by adjusting the impeller shape or size, increasing the speed of the blower, or adding additional stages to the blower.
Dirty or Clogged Air Filters
Over time, dust, dirt, and debris can accumulate on the air filters, restricting airflow and causing the blower to work harder. This increased workload can lead to an increase in noise production.