Shopping for a solar attic ventilation fan can be a daunting task. With so many fans on the market bombarding you with claims about how they are far superior to their competition it can be hard to get the facts straight and really know what solar attic fan features you need. That’s what we’re here to help you with. We’ve put together a list of the most important feature you need for your new solar attic fan.
Solar Attic Fan Feature #1: A Quality Motor
There are two types of motors that are generally used for solar attic fans, brushed motors, and brushless motors. These motors have several key differences between brushed and brushless motors. The main difference is that the brushed motor uses a rotor that contains an electromagnet. The outer body contains permanent magnets. Contact between the carbon brushes and the magnets causes the rotor to spin.
On the other hand, the brushless motor is an inside-out brushed motor, eliminating the need for brushes. With a brushless motor, permanent magnets are fitted onto the rotor while the outer body has the electromagnets. An electronic speed controller (ESC) regulates the charge going to the electromagnets, controlling the rotation of the rotor. With this setup, there is no need for brushes.
Why is a brushless motor better than a brushed motor?
A brushless motor is one of the important solar attic fan features you are looking for. Brushless motors have a longer lifespan, greater efficiency, and quieter operation. On the other hand, brushed motors have a risk of increased maintenance due to the wear and tear from the friction created by the carbon brushes. Brushed motors are also slower. Running a brushed motor at high speeds causes a buildup of heat from the friction of brushes.
Here at Solar Royal, we choose to use Brushless motors for our SR1800 Solar Attic Ventilation Fans. This motor provides you with the best quality fan that will last you for many years to come.
Solar Attic Fan Feature #2: A Quality Ventilator Housing
There are two common options to choose from when selecting the material for a quality solar attic fan ventilator housing; metal or LG chem plastic. Many companies choose to use metal. However, there are several problems with this choice of material. A metal ventilator housing conducts heat and resonates sound. There are also problems with rusting and corrosion over time which compromises the integrity of the entire unit, leading to more maintenance problems and a shorter lifespan for your fan. Metal also dents quicker due to its weaker construction. A metal housing also just plain doesn’t look as nice on your roof.
On the other hand, LG chem plastics do not resonate sound, providing a whisper-quiet unit that will not disrupt the peace in your home. It doesn’t conduct heat, rust, or corrode over time like metal does. This provides LG chem plastic units with greater durability and lower maintenance costs. Plastics don’t dent due to their superior construction. Solar attic fans manufactured with LG chem plastics also look better on your roof. They come in customer colors to blend in with your roofing material, ensuring they won’t be an eyesore.
Solar Royal manufactures the SR1800 Solar Attic Ventilation Fans with LG chem plastics to provide you with a durable, aesthetically pleasing unit that has the highest extreme weather rating on the market.