We are taking the following precautions due to the COVID-19 virus. All of our technicians have masks, glasses, latex gloves and shoe booties if they have to enter your home. Our technicians also have hand sanitizer and disinfectants that they use after every call.
If we are there to do maintenance and we don’t have to come inside your home to get to the equipment, we are asking homeowners to adjust the thermostat for us so we can do the system maintenance without entering the home. We will not be shaking hands and will keep our distance from customers.
In a shaft of sunlight, tiny airborne particulates are visible in household air. These relatively benign inorganic particles, however, make up only about 1 percent of the stuff circulating in your air. The invisible 99 percent consists of pollutants, allergens, spores and microorganisms. In an air-tight, energy efficient home, unless these contaminants are removed by mechanical filtration they accumulate and concentrate, tainting indoor air quality and triggering allergic response and illness in susceptible individuals. Additionally, a dirty filter restricts system airflow. A typical home heating and cooling system must circulate over a thousand cubic feet per minute of air through the ductwork to maintain manufacturer’s specs for energy efficiency and performance.
If you don’t know where your furnace filter is, your HVACcontractor will be happy to show you. Every month during the heating season, it’s a good idea to replace the filter. While vacuuming visible dust and dirt off the filter media instead of replacing it may provide some minimal extra mileage, the cost of filters purchased in multi-packs at any home center is low while the price of leaving a used, less-than-optimum filter installed can be considerable in higher operating costs as well as unhealthy indoor air quality.
Filter efficiency is rated by the MERV (Minimum Efficiency Reporting Value) rating, ranging from 1 to 16. The higher the MERV rating, the more effective the filter. However, airflow restriction also increases as filter efficiency rises. In a residential system, a furnace filter in the MERV range of 6 to 12 provides the best balance between adequate air flow and effective filtration.