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Heating & Air Conditioning FAQs

At Mathis-Salfi Mechanical Services, we understand that HVAC systems can be complex, and homeowners often have various questions about their heating, cooling, and emergency services. To help you navigate these topics with confidence, we’ve compiled this list of frequently asked questions.

Air Conditioning

1. How often should I change my air filter?

Changing your air filter is crucial for maintaining good indoor air quality and HVAC efficiency. For standard 1-3 inch filters, it’s recommended to change them every 1 to 3 months. For more specialized filters, refer to the manufacturer’s recommendations.

2. What should I do if my AC is not cooling efficiently?

First, check your air filter and replace it if necessary. If the problem persists, it’s best to consult a professional technician. The issue may be caused by low refrigerant levels, a malfunctioning compressor, or blocked airflow, which requires expert diagnosis and repair.

3. Can I perform AC maintenance myself?

While basic maintenance tasks like changing air filters are manageable, professional maintenance is essential to keep your system running efficiently and identify potential issues. Expert technicians can provide a more thorough inspection and servicing, ensuring optimal performance and longevity.

4. How often should I schedule professional AC maintenance?

It’s recommended to schedule professional AC maintenance at least once a year, ideally before the cooling season begins. Regular maintenance can help prevent unexpected breakdowns and ensure your system operates efficiently.

5. What is the ideal temperature for my thermostat in the summer?

The ideal thermostat setting during the summer depends on your comfort preferences and energy-saving goals. However, setting your thermostat to around 72-74°F when you’re home and slightly higher when you’re away can provide a balance between comfort and energy efficiency.


6. How can I improve the efficiency of my heating system?

To enhance your heating system’s efficiency, start with regular maintenance. Ensure your home is well-insulated and seal any drafts. Consider upgrading to a programmable thermostat to fine-tune temperature control and reduce energy consumption.

7. When should I replace my heating system?

The lifespan of a heating system typically ranges from 15 to 20 years. If your system is near the end of its lifespan or if it requires frequent repairs and is becoming inefficient, it’s a good time to consider replacement.

8. Can I use space heaters to supplement my central heating system?

While space heaters can provide additional warmth in specific areas, they should be used with caution. Ensure they are placed away from flammable materials, and never leave them unattended. Relying solely on space heaters for heating can be less efficient and more costly.

9. What’s the difference between a furnace and a boiler?

Furnaces heat air, which is then distributed throughout your home through ducts and vents. Boilers, on the other hand, heat water, which is circulated through radiators or radiant floor systems to provide warmth.

HVAC Repairs

10. What should I do if my HVAC system breaks down?

In the event of a breakdown, the first step is to check your thermostat settings and air filter. If that doesn’t resolve the issue, contact a professional HVAC technician for a diagnosis and repair. Attempting DIY repairs can lead to further problems.

11. How long do HVAC repairs typically take?

The duration of HVAC repairs depends on the nature and complexity of the issue. Some minor problems can be resolved in a matter of hours, while more extensive repairs may take a day or longer.

HVAC Maintenance

12. What are the benefits of regular HVAC maintenance?

Regular maintenance enhances system efficiency, extends its lifespan, and reduces the risk of unexpected breakdowns. It also improves indoor air quality, lowers energy bills, and ensures your system operates safely.

13. Is professional maintenance really necessary, or can I skip it?

Professional maintenance is highly recommended to ensure your HVAC system is properly serviced and inspected. Skilled technicians can identify potential issues that may go unnoticed during DIY inspections, ultimately saving you money in the long run.

14. How do I choose the right HVAC system for my home?

Selecting the right HVAC system involves considering factors like your home’s size, climate, energy efficiency goals, and budget. Consult with a professional HVAC technician who can assess your specific needs and provide recommendations.

15. Is it possible to install an HVAC system in an older home?

Yes, it’s possible to install an HVAC system in an older home. Ductless systems, high-velocity systems, or zone control systems can be used to provide efficient heating and cooling without extensive ductwork. A professional evaluation can determine the best option for your older home.

24-Hour Emergency Heating & Cooling Service

16. When should I call for 24-hour emergency HVAC service?

You should call for 24-hour emergency HVAC service if your system breaks down outside of regular business hours, during extreme weather conditions, or if you detect any potentially hazardous issues like gas leaks or carbon monoxide leaks.

Contact Us for Comprehensive HVAC Services in Avalon, NJ

If you have more questions or require any HVAC services, including installation, maintenance, or 24-hour emergency assistance, contact Mathis-Salfi Mechanical Services. We’re here to provide you with reliable answers and top-quality services in Avalon, NJ, and the surrounding areas. Your comfort and peace of mind are our priorities, so don’t hesitate to reach out to us for all your HVAC needs.