Honest, Personalized Service


Legacy One Heating has been serving the people of Everett, Seattle, Kirkland, and beyond since 2016. Our founders have industry experience that goes back over 20 years. What that means is we’ve heard and answered a lot of questions about HVAC systems. Here are the answers to those that most commonly come up: 

How Often Should HVAC Air Filters Be Replaced?

It's recommended that HVAC air filters be replaced roughly every three months, During peak usage times, such as the summer or winter months, when the system is running frequently, it's advisable to at least check the filter every month to ensure it isn’t dirty. Dirty filters can restrict airflow and cause the system to work harder, reducing its lifespan while increasing energy bills. 

When Does My HVAC Unit Need to Be Repaired? 

It’s important to pay attention to signs like unusual noises coming from the system, an increase in energy bills, constant cycling or short-cycling of the system, a lack of airflow through vents, or moisture build-up around flues or piping. Furthermore, if the home or office space is not reaching the desired temperature, this could also be a sign that repair is needed. If you notice any of these warning signs, contact us by either calling (425) 906-3447 or filling out our online contact form to schedule an appointment and get a free estimate. 

Are New HVAC Units More Energy-Efficient? 

A new system tends to result in lower energy costs. The reason is that an older system has to work harder to achieve the same result. On a hot day in the summer, the older HVAC often uses more energy to keep the house cool. On a cold winter day, the HVAC must work hard to keep the home or office space at the desired warm temperature. All of this adds up to higher energy costs. One reason for installing a new HVAC unit is to have a system that works smoother, uses less energy, and ultimately costs less. The prospect of lower heating and cooling bills can offer a property owner an immediate return on their investment. 

How Does an HVAC System Impact Indoor Air Quality? 

The HVAC system plays a key role in maintaining indoor air quality within residential and commercial properties. HVAC systems can filter the air and remove pollutants, allergens, and other contaminants that can impact air quality. Without proper HVAC maintenance, these pollutants can accumulate within the system and then circulate throughout the indoor environment, leading to respiratory complications and other health issues. Some contaminants that can lead to poor air quality include mold, bacteria, pet dander, and dust, which can cause allergies, asthma attacks, and other health complications. 

What Is a Ductless Mini System?

A ductless mini-system is a compact, energy-efficient heating and air conditioning system that does not use ductwork to distribute air. These systems can be a great solution for property owners who are looking for zoned temperature control and cost-effective installations. The system features an outdoor compressor and an indoor wall-mounted unit that delivers either warm or cool air directly into the desired room. Ductless mini-systems offer numerous benefits, including energy efficiency, zoned temperature control, and improved air quality. They are easy to install, operate quietly, and are space-saving, making them perfect for small areas. 

Call Legacy One Heating at (425) 906-3447 or contact us online today to get a free estimate.

Why Choose Legacy One Heating?

What Makes Us Different
  • Contact Us for a Free Estimate
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Areas We Serve

Legacy One Heating is proud to serve Mukilteo, Washington and other surrounding areas

  • Arlington
  • Bellevue
  • Bothell
  • Brier
  • Clearview
  • Clyde Hill
  • Cottage Lake
  • Eastmont
  • Edmonds
  • Everett
  • Kirkland
  • Lake Stevens
  • Lynnwood
  • Marysville
  • Medina
  • Mercer Island
  • Mill Creek
  • Mountlake Terrace
  • Mukilteo
  • Redmond
  • Seattle
  • Shoreline
  • Woodway