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

The right HVAC system depends on your home’s size, layout, insulation, age, energy goals, and budget. In the Merrimack Valley and North Shore, climate and utility costs also play a major role. Northeast Heating & Cooling evaluates your home and recommends systems that deliver reliable comfort, energy efficiency, and long-term savings.

What size HVAC system do I need?

HVAC system size is determined through a professional load calculation, not just square footage. Factors include insulation, window placement, ceiling height, sun exposure, and household usage. Installing the wrong size system can lead to higher energy bills and uneven comfort. Our technicians perform proper sizing calculations to ensure optimal performance.

How long does a new HVAC installation take?

Most residential HVAC installations take one full day, though larger or more complex systems may take longer. This includes removing old equipment, installing the new system, connecting ductwork, testing airflow, and ensuring everything operates safely and efficiently.

What’s included when replacing an old heating or cooling system?

Replacing an HVAC system includes inspecting ductwork, electrical connections, refrigerant lines, thermostat compatibility, drainage, venting, and overall system safety. Northeast Heating & Cooling ensures all components meet current efficiency standards and local codes.

 

How long do HVAC systems typically last?

With proper maintenance:

• Air conditioners last 12–15 years
• Furnaces last 20–25 years

System lifespan depends on usage, installation quality, and routine servicing.

 

Should I replace the indoor coil when replacing my AC or heat pump?

Yes. Replacing the indoor coil at the same time improves efficiency, performance, and system lifespan. Mismatched components can reduce energy savings and cause premature wear.

Where can my furnace or air handler be installed?

HVAC systems can be installed in basements, attics, garages, crawl spaces, or outdoors, depending on system type. We help determine the best location for performance, accessibility, and long-term reliability.

What is a heat pump and how does it work?

A heat pump provides both heating and cooling by transferring heat rather than generating it. Even in cold New England winters, heat pumps can efficiently warm your home while reducing energy costs.

How can I reduce humidity in my home?

Installing a variable-speed HVAC system helps control humidity by running longer at lower speeds, improving moisture removal while using less electricity.

 

What should I check before calling for HVAC service?

Before scheduling service:

• Check circuit breakers
• Replace dirty air filters
• Ensure vents are open and unobstructed
• Confirm thermostat settings

If issues persist, our technicians are ready to help.

 

What does AFUE mean for furnaces?

AFUE (Annual Fuel Utilization Efficiency) measures how efficiently a furnace converts fuel into heat. Higher AFUE ratings mean lower fuel costs. Modern furnaces must meet minimum efficiency standards.

What is HSPF?

HSPF (Heating Seasonal Performance Factor) measures heat pump efficiency during heating season. Higher HSPF ratings indicate better energy performance.

Why is R-22 refrigerant no longer used?

R-22 was phased out due to environmental concerns. New systems use safer refrigerants like R-410A. Older systems using R-22 are more expensive to maintain and often better candidates for replacement.

 

Why is my air conditioner freezing up?

Common causes include:

• Dirty air filters
• Restricted airflow
• Low refrigerant levels
• Dirty evaporator coils
• Blower motor issues

Turn the system off and contact Northeast Heating & Cooling to prevent damage.

 

How can I lower my heating and cooling costs?

You can reduce energy costs by:

• Scheduling annual HVAC maintenance
• Upgrading to high-efficiency equipment
• Using a programmable or smart thermostat
• Keeping filters clean and vents clear

 

Do I really need annual HVAC maintenance?

Yes. Regular maintenance improves efficiency, prevents breakdowns, extends system lifespan, and helps catch small issues before they become costly repairs.