EcoEdge Systems HVAC FAQ


1. Understanding HVAC Systems

What exactly is an HVAC system?

HVAC stands for Heating, Ventilation, and Air Conditioning. It refers to the complete system that controls your indoor climate, including heating, cooling, and air quality.

What does a full HVAC system include?

A complete HVAC system typically includes a furnace or heat pump, an air conditioner or heat pump for cooling, ductwork, a thermostat, and sometimes air quality equipment like filters, purifiers, or humidifiers.

Is AC the same as HVAC?

No. AC is only the cooling part of HVAC. HVAC covers heating, ventilation, and air conditioning as a full system.

What are the 4 main components of an HVAC system?

The four main components of an HVAC system include a heating unit, such as a furnace or heat pump, a cooling unit like an air conditioner or heat pump, a system of ductwork or other airflow distribution, and the thermostat, along with associated controls that regulate the temperature and operation.

What is the most common part to fail in an HVAC system?

The air handler, compressor, and condenser are the most frequent points of failure, often due to wear, poor maintenance, or leaks.

What is the number one problem with HVAC systems?

Poor maintenance leading to dirty filters, low refrigerant, and inefficient airflow, which can reduce performance and increase energy bills.

2. HVAC System Types

What are the four types of HVAC systems?

The four main types of HVAC systems are split systems, hybrid systems, ductless mini-splits, and packaged heating and cooling systems.

What are the most common HVAC systems?

Split systems are the most common in residential homes, while packaged systems are often used in commercial buildings.

Which refrigerant is better, R410A or R32?

R32 is more environmentally friendly and slightly more efficient, while R410A is widely available and used in many existing systems.

What are the four types of HVAC maintenance?

The four types of HVAC maintenance are preventive maintenance, corrective maintenance, predictive maintenance, and emergency maintenance.

3. HVAC Sizing and Efficiency

What size HVAC do I need for a 2000 sq ft house?

Typically, a 2.5–3 ton AC unit is sufficient, depending on insulation, windows, climate, and home layout.

How big should an AC unit be for a 2000 sq ft house?

Around 36,000 BTUs (3 ton) is common for moderate climates.

Is 3 ton AC too big for 1500 square feet?

Yes, it’s generally oversized. Oversized units cycle too quickly, reducing efficiency and comfort.

Is it OK to oversize AC?

Not recommended. Proper sizing improves energy efficiency, comfort, and system longevity.

What is better, 13 SEER or 16 SEER?

16 SEER is more energy-efficient and can save money on your electricity bill, but it comes with a higher upfront cost.

Is 18 SEER or 20 SEER better?

20 SEER is slightly more efficient than 18 SEER, but the cost difference may not always justify the efficiency gain for smaller homes.

4. Costs and more

What is the $5000 rule for HVAC?

The "$5000 rule" is a rough guideline suggesting that homeowners can often expect tax incentives or cost benefits if they invest around $5,000 or more in a new HVAC system.

Can I get a tax credit for my new HVAC system in 2025?

Certain high-efficiency systems may qualify for federal or state tax credits, especially if they meet ENERGY STAR® or eco-friendly standards.

What is the tax break for HVAC in 2025?

For 2025, homeowners may receive up to 30% of the cost (up to certain limits) for installing energy-efficient systems, including heat pumps and high-efficiency air conditioners.

How much does a new HVAC system cost for a 2000 sq ft home in 2025?

Prices range from $7,000 to $15,000 depending on system type, efficiency, and installation complexity.

What is the best month to buy an HVAC system?

Spring and fall are ideal. Installers are less busy, and promotions are common before peak summer or winter demand.

5. Other Common Questions

What is the number one problem with HVAC systems?

Lack of maintenance, leading to poor airflow, dirty filters, and inefficient performance.

How much do HVAC systems cost to replace?

Replacement costs vary by size and efficiency but typically range from $5,000 to $15,000 for a residential system.

Can an HVAC system be too big for a home?

Yes, an oversized system can cycle too often, causing uneven cooling or heating and higher energy bills.

6. Troubleshooting Common HVAC Problems

Why isn’t my AC cooling properly?

Check the thermostat settings, air filters, and vents. Low refrigerant or a failing compressor could also be the cause.

Why is my heater making strange noises?

Possible causes include loose components, debris in the system, or a failing blower motor.

Why does my HVAC system keep cycling on and off?

This could be due to improper sizing, thermostat issues, or restricted airflow from dirty filters or ducts.

What should I do if my system smells bad?

Unusual odors could indicate mold, mildew, or burning components. Turn off the system and call a professional immediately.

Does closing vents in unused rooms save energy?

Not always. It can cause pressure imbalances and reduce efficiency. Proper zoning or ductless systems are better solutions.

Are smart thermostats worth it?

Yes, they can save energy by adjusting temperatures automatically based on your schedule and usage patterns.

7. Seasonal HVAC Advice

When should I prepare my HVAC system for summer?

Spring is ideal. Have your AC inspected, cleaned, and ensure refrigerant levels are correct.

When should I prepare my HVAC system for winter?

Fall is best. Check your furnace or heat pump, replace filters, and ensure your thermostat is working efficiently.

How can I prevent HVAC breakdowns during peak seasons?

Regular maintenance, clean filters, and prompt repair of minor issues before they become major problems.

8. General HVAC Company FAQs

How do I know if I need a professional or just maintenance?

If your system has unusual noises, inconsistent temperatures, or higher-than-normal bills, call a professional. Regular maintenance can prevent most issues.

How long does a typical HVAC installation take?

Usually 1–3 days, depending on system type, complexity, and whether ductwork modifications are needed.

Can I finance a new HVAC system?

Many companies, including EcoEdge Systems, offer financing options or payment plans for new installations and upgrades.

Do you offer emergency HVAC services?

Yes, EcoEdge Systems provides emergency repair services to keep your home or business comfortable year-round.

How often should I schedule professional maintenance?

Twice a year – once in spring for AC and once in fall for heating systems, to ensure efficiency and prevent breakdowns.

Contact Us

EcoEdge Systems LLC - Reliable Service in Merrillville IN

Schedule a Free Installation Estimate or Service Visit

For installation projects, we offer free in-home consultations. For repairs, our trained technicians explain the issue and pricing before work begins. If you’re looking for a dependable HVAC contractor in Merrillville, IN, EcoEdge Systems is here to help you make informed, confident decisions about your home comfort.

Contact EcoEdge Systems today to schedule your free estimate or service visit and get honest, upfront HVAC pricing you can trust



Well-functioning heating and A/C systems are imperative to your comfort, both in the office and at home. At EcoEdge Systems LLC we pride ourselves on our ability to keep those systems up and running. Our trustworthy technicians guarantee your satisfaction 100% of the time. We understand that this equipment is an investment for you, and we always ensure you’re getting the most for your money. For trustworthy HVAC service and installation, consider us your go-to.

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