Turning on your old furnace after several months of keeping it off can seem like a risk. Will it run without a problem and work properly the whole season? Or will it break down without warning on the day a blizzard rolls in?

Furnace installation in Marshalltown, Iowa, is simple when you contact the heating and cooling professionals at B & G HVAC. We sell and service all sorts of equipment to meet your comfort and budget preferences, like energy-efficient and high-efficiency furnaces that will help keep utility costs low.

Give us a call today to get started with replacing your furnace.

Men looking at a new furnace installation

Should I Repair or Replace My Furnace?

While no one can predict just when your furnace will go out, there are a few clues that a furnace should be replaced.

How Old Your Furnace Is

Furnaces generally last between 12–17 years. If yours is 15 years old (or more), it has a greater possibility of breaking down. You should start the process for replacement by comparing new furnaces promptly.

Continual Repairs

You should consider HVAC installation if yours needs repairs more frequently.

Higher Energy Bills

Old furnaces are less efficient. If you’ve put off annual furnace maintenance, you risk losing additional furnace efficiency and having steeper energy costs.

Spotty Heating

An aging heater can struggle to keep up with heating your home. Broken ductwork and a clogged furnace filter can also lead to problems.

Three Benefits of a New Furnace

While furnace installation may seem daunting, new furnaces include new features outdated systems can’t compete with. Additionally, you’ll be able to relax knowing you don’t need to replace your system for the immediate future.

A new furnace can offer:

1. Increased Efficiency

New furnaces are very resilient and can boast exceptionally better efficiency ratings than equipment from 20 years ago.

2. Quieter Operation

A new furnace offers the latest in quiet operation technology. You might not notice when it switches on.

3. Peace of Mind

The latest HVAC technology ensures your furnace will stay in good shape for longer and run with better energy efficiency. With one of our service agreements, you’ll never forget an important yearly tune-up again.

Furnace Installation FAQs

Proper sizing is based on factors like square footage, building envelope, air leakage, ceiling height, and local climate. Many contractors use a load calculation to avoid problems caused by oversizing, such as short cycling.
Many installations are completed in one visit, but timing can vary depending on venting changes, electrical or gas updates, permits and inspections, and whether you’re upgrading equipment. Your installer should provide a clear schedule before work begins.
Sometimes your existing thermostat works fine, but upgrades may be recommended for better control—especially with two-stage systems or variable-speed blowers. Your contractor can confirm control requirements and recommend the best option.
Before the appointment, it helps to make the mechanical area accessible, secure pets, and have someone available for questions. After installation, the team should verify safety controls, review system settings, and explain maintenance needs.
A newer furnace can improve efficiency, but savings depend on how old your system is, thermostat habits, air leaks, and home insulation. A technician can help you compare efficiency ratings and expected performance for your home.

Furnace Replacement You Can Count On

You can trust we won’t forget anything—from keeping your home tidy throughout installation to running final checks on your new furnace. We’d be delighted to walk you through the process and ensure you can keep up with maintenance expectations.

Our certified pros are fully licensed and insured, so you won’t have to worry about anything during the HVAC installation process. We’ll make sure everything’s in order and check for leaks in the ducts.

Contact us or schedule an appointment online to get started with your furnace installation today. Our experts will teach you how to find the best furnace for your home and install it with little hassle.

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