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How Much Does it Cost to Install a Furnace in San Marcos?

November 01, 2018

cost to replace furnace in san marcos

The cost to install a furnace in San Marcos ranges from $2,500 to $7,500+, with the average cost being around $5,500.

We know—that’s a big range in price.

The reason furnace installation costs can vary within that range is because what you’ll pay depends on the following factors:

  1. Furnace size
  2. Energy efficiency (AFUE)
  3. Comfort features you add
  4. The furnace installer you hire

We’ll go into more detail about each of these cost factors.

Note: To know exactly what you’ll pay for a furnace installation, you’ll want to contact a San Marcos professional for a quote.

Cost factor #1: Furnace size

The bigger the furnace, the more expensive it will be.

When we talk about furnace “size,” we’re not talking about its physical dimensions. Instead, size refers to the amount of heat a furnace can put out at one time, measured in BTUs (British Thermal Units).

Most residential furnaces range anywhere from 40,000 to 100,000 BTUs. You’ll find how many BTUs a furnace has by reading its manufacturer label or online marketing materials.

Here’s the thing though: You don’t actually get to pick the furnace size. You see, the size of your furnace depends on factors like…

  • The square footage of your home
  • Number of windows and doors in your home
  • The climate of where you live
  • Your furnace’s efficiency

Since the size of your furnace depends on so many factors, an HVAC professional will need to perform a heat load calculation to help you determine the right size for your home.

Cost factor #2: Energy efficiency (AFUE)

Here’s the bottom line: High-efficiency furnaces cost more upfront.

However, the more energy efficient your furnace, the lower your monthly energy bills will be.

We’ll explain more…

A furnance’s energy efficiency is measured in AFUE (annual fuel utilization efficiency), which is expressed as a percentage, ranging anywhere from 80% to 98+%. You can find a furnace’s efficiency rating on the EnergyGuide label.

AFUE measures how much energy from the furnace’s fuel is actually converted into heat. For example, a furnace with an AFUE of 80% means that for every $1 you spend on heating, 20¢ is wasted due to inefficiencies.

Higher efficiency furnaces (90%+) are called condensing furnaces. These furnaces have advanced technology which helps them waste less heat than conventional furnaces, but condensing furnaces are also more expensive.

If you’re debating going with a condensing or conventional furnace, contact an HVAC professional for guidance. They’ll help you determine which type of furnace is best for your family’s heating needs and budget.

Cost factor #3: Comfort features you add

The more comfort features you add to your furnace, the more it will cost upfront.

  • You can upgrade 2 parts of your furnace for better comfort:
  • The blower motor
  • The burners (gas models)
heat exchanger in a central furnace

Anatomy of a gas furnace

The blower motor

Your blower motor is what pulls in cold air and pushes warm air back into your home. You can purchase 3 different types of blower motors:

  1. Single-speed (least expensive)—Provides air only at full blast or not at all.
  2. Multi-speed (mid-priced)—Provides air at low, medium or high speeds, depending on what you need (similar to having different gears on a car).
  3. Variable-speed (most expensive)—Adjusts incrementally how much air it blows, based on your heating needs. Variable-speed blower motors are the best at eliminating cold spots.

The burners (gas models)

Furnace burners provide the heat that warms your home’s cold air. You can buy 3 different types of burners:

  1. Single-stage burner (least expensive)—Provides heat only at full blast or not at all.
  2. Two-stage (or dual-stage) burner (mid-priced)—Can run at a high or low setting. The additional low setting allows the furnace to keep the heat from dropping too low beyond your thermostat setting while not having to run at full blast.
  3. Modulating burner (most expensive)—Adjusts the burner to precisely meet your heating needs, which helps maintain a constant indoor temperature.

Cost factor #4: The furnace installer you hire

More experienced contractors charge more for their installation services, but they also do the installation right the first time.

Hiring an experienced contractor is worth it in the long run because you avoid the hassle and wasted money of paying for repairs and breakdowns caused by shoddy installation work.

To find an experienced contractor who does high-quality work, ask yourself the following questions:

If you answered “yes” to those questions, you’ve found a quality contractor who will install your furnace correctly the first time.

Need a new furnace for your San Marcos home?

We offer…

  • 100% satisfaction—guaranteed
  • Financing options
  • Reliable and trustworthy techs who will respect your home

Visit our furnace installation page to learn more about what to expect when you hire us to install your new furnace system.