How Will You Choose A Right Size Home Furnace?

March 19, 2021
 | By 
Queen Plumbing Charlotte

Who doesn't want a warmer environment within their rooms during a shivering winter? Finding the perfect home furnace is one of the most important matters for a residence. A furnace will also keep your family comfortable and save your monthly energy costs.

But how do you pick the best furnace for your needs when there are so many different models and sizes? While choosing the right size of furnace for your home, you need to bear in mind some crucial points. Examples: furnace efficiency, furnace sizing, efficiency rating, heating system, energy efficiency, and many more.

As you proceed Through this blog, you will get to know h0w to choose the right size furnace for your home.

Choosing The Right Furnace Size For Home

If you use the correct size furnace, your house will warm up gradually. In the long run, this will save you a lot of money and make your equipment last much longer. If it seems like your furnace is always running, it could be because it's too small. And if you notice that your furnace starts and stops all the time, this could mean that it is too big.

A Residential Gas Furnace

If your furnace has the right size, there shouldn't be any cold or hot spots within the heating and cooling systems. But keep in mind that even a BTU furnace that is the right size might not be enough to keep you warm on freezing nights. But it would help if you didn't worry; it means you might still need a coat or jacket sometimes.

To get a reasonable estimate of the size of the furnace in your home, you need to think about several things.

For Choosing The Right Size Furnace And Ensuring The Highest Furnace Efficiency, Keep These In Mind:

Find out your house's size in square feet by a furnace sizing calculator. Find out how much heat you need by adding up the square footage of each room in your home. But, likely, your home's ducts don't come from the basement or attic. Here's how to figure out how much space is in a room, step by step:

  • You can figure out how big a room is by multiplying its length by its width.
  • You can figure out how big a triangle-shaped room is by multiplying its length and width and then dividing this number by two.
  • To figure out how big a circular the room is, start by measuring its radius, the distance from the room's edge to its center. Think about r2's square root. If your calculator doesn't have a pi () button, use the number 3.14.
  • You can measure each part of a room with a different shape by dividing the room into smaller parts.

Different climate zones have different adjustments. Identify The climate zone of your home. The weather in your area is another thing to consider when figuring out the BTUs you'll require to warm your house. Several environmental factors, such as altitude and ocean currents, affect how many BTUs in a heat pump a latitude needs. You can also use the menu furnace BTU calculator.

There is a recommended heating factor for each climate zone to install a gas furnace. This is the number of BTUs per square foot that should be used. Cities like Chicago and New York have a heating factor of 45 to 50. It would help if you had a heater that puts out 45 to 50 BTUs per square foot in either of these cities.

If your house is new or has good insulation, use the lower number of these two. Choose the higher number if your home is old or has a poorly insulated system. If you're unsure, always go with the more significant number, but try to get as close as possible, so you don't get a too big furnace.

Multiply your square footage by 40, the lowest number recommended for your temperature zone. There are 76,000 BTUs, which in that climate should be enough to keep your house warm by utilizing gas furnaces.

You may wonder how many BTU per square foot you'll need to heat a new home. The first thing you should look at is how many square feet your house has. You'll need a higher BTU output to heat a bigger house most of the time. To remind you, this is just the beginning. Below is a list of how many BTUs a furnace needs for different sized homes per the furnace size calculator.

  • 36,000 to 72,000 British thermal units for a 1200 square foot home furnace.
  • A house that is 1,500 square feet needs a furnace that has between 45,000 and 90,000 BTUs.
  • A furnace for a 1,800-square-foot home should have between 54,000 and 108,000 BTU.
  • A 2,100-square-foot furnace needs between 63,000 and 126,000 BTUs.
  • Depending on the size of the house, the BTU ranges from 72,000 to 144,000.

There is a wide range of suggested BTU usage for different house sizes and heat pumps, so the square footage alone is not a good way to figure out how many BTUs you need. To get a more accurate estimate of how many BTUs you will need to heat your home, you must consider many other factors.

Some Other Things To Think While Choosing The Right Size Of A Furnace

Here are some other key points to consider while choosing the right size furnace for your home:

Installation of a residential furnace
  • If your house has a lot of windows, heat is more likely to get out. If the windows are older, you may need to pick a number closer to the top of your heating factor range.
  • You'll need to know how many BTUs your house needs based on how much sunlight comes in. Allow 10 percent less space in areas where there is almost always some sunlight. If your house gets sufficient sunlight, you'll need 10 percent more capacity.
  • Adding 4,000 BTUs to the kitchen will help heat move around better.
  • For example, a two-story house will use fewer BTUs than a one-story house because the second floor adds another layer of insulation.
  • Newer homes are more energy efficient because they have better insulation and fewer places where heat can escape.
  • Most people like temperatures between 70 and 80 degrees Fahrenheit, but your BTU needs will change if you like it higher or lower.
  • Height of the ceiling: If your ceilings are very high, you will need more BTUs to keep your house warm.
  • By making your home airier, ceiling fans can help you use less BTU. To do this, they make sure that the temperature is the same everywhere in the house.
  • If the size of your ducts doesn't match the size of your furnace, it could cause problems. If your ductwork is too small for your furnace, the air made by the furnace won't have enough space to flow through. This will shorten the life of your furnace. That could cause the furnace to get too hot, reducing how much air it can move. The size of your furnace and ductwork must be the same.
  • How would you describe the shade of the color of your roof? Darker roofs are better at taking in the sun's energy than lighter ones. Even when the roofs are both new and clean, there are still significant differences in the amount of BTUs they use.
  • The shape of your house: A long and narrow house will need more BTUs to heat than a square house with the same amount of space. A long, narrow house will lose more heat because it has more outside walls.

If you want to replace your home's furnace or install a new one, call us at QUEEN CHARLOTTE PLUMBING at 8424 Old Statesville Rd Charlotte, NC 28269. If you're not sure what kind, brand, or size of furnace you need for your home, our service experts are here to help.

We're sure that we'll be able to install the furnace of your dreams quickly and satisfactorily. Our services are available 24/7, and our technicians are highly experienced.

Call us at 704-707-3339

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