whole-house fanA whole-house fan is home ventilation taken to the highest level. These powerful ceiling-mounted fans make your entire home the vent, inducing a strong negative pressure inside the house that draws fresh outdoor air in through open windows while exhausting stale indoor air out through attic vents. When a unit is idle, insulated louvers automatically close to prevent cooling or heating loss.

Whole-House Benefits

  • While they can’t completely replace air conditioning, in climates like Baltimore with temperate nights and mornings, these major air movers keep homes comfortable all night with a wind chill effect of fresh, cool air in motion. In the morning, they may delay cranking up the A/C by several hours, as well.
  • While a typical residential cooling system draws about 3,500 watts of electricity, the average 1/4- or 1/2-horsepower whole-house fan consumes only 120 to 600 watts, depending on the speed setting. For every hour you can stay comfortably cool with whole-house ventilation instead of air conditioning, you’re both saving money and conserving energy resources.
  • Indoor air quality also benefits from the whole-house approach. In today’s tightly-sealed, energy efficient homes, air stagnates and indoor pollutants and humidity accumulate. The power of whole-house ventilation rapidly flushes the entire interior of the home, purging stale air and water vapor and renewing your indoor environment.

Whole-house fans are available in both direct-drive and belt-driven models. Rated by cubic feet per minute (CFM) of air movement, when properly sized, a fan should turn over the entire household air volume every two to three minutes. The general sizing formula for a residence with 8-foot ceilings is to multiply total square footage by three, and then select a whole-house fan with a CFM rating closest to that figure. Following that example, a 1,500 square foot home would require a fan rated for 4,500 CFM.

Learn more about how a whole-home fan can help your home’s level of comfort or improve its indoor air quality or call us at 888-474-3391.

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Dear Customers,

At this time, when the news is dominated by the Coronavirus (COVID-19) health emergency around the world, we wanted to personally reach out and let you know that we are vigilantly implementing enhanced protocols to ensure your safety and the safety of our team.

We are closely monitoring the guidance of the World Health Organization and the Centers for Disease Control regarding the spread of the virus. This is an evolving situation and we will continue to develop and take necessary measures as needed. Our focus is to ensure that we meet customer needs while doing our part to keep you, our employees, and our communities safe.

Here’s what we’re doing:

  • Everyone on our team has received enhanced training and protocol briefings. We will continue to evolve and adjust these protocols as needed.
  • We are implementing telecommuting options for positions where applicable.
  • Non-essential work travel is currently on hold for all employees.
  • We are conducting enhanced cleaning practices at our locations and are instructing employees to continually sanitize their work stations and vehicles.
  • We are also urging all employees to be vigilant about frequent hand washing.

Information for you:
If you have an existing service appointment, we look forward to seeing you and want to reassure you that we are doing everything we can to promote a safe and secure service experience.

During this challenging time, if you are experiencing symptoms related to the COVID-19 virus or have been exposed to it, in order to protect our team and all the customers we serve, we encourage you to please reschedule your service appointment, by calling us at 888-474-3391.

Your safety is our highest priority and we truly appreciate the trust that you place in our team and our company.

Best regards,
Griffith Energy Services

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