To help you out, we have calculated some BTUs for the most common garage sizes:
| Size of Garage | AC Size (in BTUs) |
| 200 sq ft garage | 6,000 BTU |
| 1-car garage (12×20) | 7,200 BTU |
| 300 sq ft garage | 9,000 BTU |
| 2-car garage (22×20) | 13,200 BTU |
Full Answer
What is the best space heater for a garage?
Top 10 Products
- Dr. Infrared Garage Shop Heater. Our top pick is the Dr. ...
- Mr. Heater Natural Gas Heater. If you were hoping for a natural gas powered garage space heater, the Mr. ...
- Dr. Heater Commercial Heater. The heavy duty option from Dr. ...
- Mr. Heater Kerosene Heater. This next product is the most powerful heater we found and ideal if you need to heat up a really large space.
What is the best heat for a garage?
You’ll find these heaters are generally:
- Natural gas hung from the ceiling
- Radiant heat affixed to the wall
- Electric 240V for smaller garages
What size heater for a 2 car garage?
What size heater do I need for a 2 car garage? Installing the heater How many Btu you need depends on variables such as the garage size, your climate zone and the temperature you want to work in. A basic rule of thumb for forced-air heaters is 45,000 Btu to heat a two- to 2-1/2 car garage, and a 60,000 Btu garage heater for a three-car garage.
How to heat a garage cheaply?
Methods to heat your garage cheaply
- Insulating the garage for winter. If you want to heat your garage cheaply, the first step is insulating the garage. ...
- Radiant garage floor heating. Garage floor heating is ideal for keeping the garage warm and it is one of the effective ways to heat your garage cheaply.
- Using garage space heaters. ...
- Mini-split ac ductless system. ...
- Combustion heater. ...
How many Btus do I need for a 24x24 garage?
There is a basic rule of thumb for forced-air heaters, which is to heat a two- to 2-1/2 car garage and a three-car garage with 60,000 Btu.
How many BTU do I need for a 30x30 garage?
1-Car, 2-Car, 3-Car, 4-Car Garage BTU Requirements (Rough Estimates)Size Of Garage:Warm Climate (30 BTU per sq ft):1-Car Garage (250 sq ft):7,500 BTU2-Car Garage (500 sq ft):15,000 BTU3-Car Garage (750 sq ft):22,500 BTU4-Car Garage (1,000 sq ft):30,000 BTU
How many Btus do I need to heat my garage calculator?
Roughly the formula comes out to this: (Insulation * Cubic Feet of Garage * Temperature Rise) / 1.6 = # of BTU. In an area of 3,840 cubic feet, with a 35 degree temperature rise with average insulation (or 1) would come out to this: (1 * 3840 * 35) / 1.6 = 84,000 BTU.
How many Btus do I need to heat a 3 car garage?
A basic rule of thumb for forced-air heaters is 45,000 Btu to heat a two- to 2-1/2 car garage, and a 60,000 Btu garage heater for a three-car garage. The makers of low-intensity infrared tube heaters say that 30,000 Btu can heat a two to 2-1/2 car garage, and suggest 50,000 for a three-car garage.Mar 16, 2022
How many BTU do I need for a 2 car garage?
30,000 - 50,000 BTUTo heat an average two car garage, you'll need a garage heater that is capable of heating roughly 6,000 - 9,000 cubic feet of air. We recommend getting a 30,000 - 50,000 BTU garage heater to get your two car garage to a comfortable temperature.Oct 28, 2020
How many BTU is 600 square feet?
12,000 BTUAnswer: Using the EPA's 20 BTU per sq ft rule of thumb, the room size of 12,000 BTU air conditioners is 600 sq ft. Equally, 1 ton AC room size is about 600 sq ft. Again, when narrowing down your choice of an air conditioner, knowing how big an area you need to cool is your best friend.
How many square feet will 40000 BTU heat?
1,000 sq ftIn a standard climate, 40,000 BTU is enough to heat a 1,000 sq ft area. Obviously, if you live in colder climate, a 40,000 BTU heater will heat an area below 1,000 sq ft.
How much space will a 7500 watt heater heat?
750 sq. ftA heater this size is capable of warming a 750 sq. ft room.
What size BTU heater do I need?
To determine the number of BTUs per square foot that you need to heat a room, simply multiply the square footage by 20 BTUs per square foot. For example, if a room has 1,000 square feet, you would require 20,000 BTUs to heat it.Apr 22, 2020
What size heater do I need for garage?
The simplest way is to follow the rule of 10 watts per square foot of floor space. A 22 ft. x 24 ft. garage has 528 square feet, so the easiest way to estimate the required wattage is to multiply by ten.Dec 26, 2017
Can a space heater heat a garage?
All garage space heaters typically provide between 5000 and 10000 watts of power. These units are designed to heat up at least a standard sized garage area. Some units provide more than 10000 watts of energy and they can be used to heat up large sized garage spaces or ones with multiple bays.Dec 6, 2020
Should I heat my garage in winter?
Heating your garage will prevent the following harmful effects of the cold to your possessions: Car Won't Start – Keeping your car in a cold garage can mean mornings where it just won't start. Freezing temperatures can kill car batteries and cause damage to other parts.
How to figure out how much space you need to heat a garage?
Your first step is to figure out the area, in square feet, of the garage you want to heat. You do that by measuring the length and width of the space, and multiplying them together. So, for instance, if you have a garage that is 20 feet long and 15 feet wide, your square footage is 20 X 15, or 300 sq ft.
What does BTU stand for in a garage heater?
Each BTU is the amount of heat required to raise the temperature of one pound of water one degree Fahrenheit. Even though your garage heater is heating air, and not water, this unit of measurement is the standard way of discussing heating capacity.
What is BTU in heating?
BTUs are a handy way to compare the effectiveness of different heater types, so that you can easily decide on the energy source that’s best for you: a natural gas or propane heater, electric heater, and so on. Air conditioners also use BTUs, as a measure of how much heat they can remove from the air.
What to do with a garage that is ice cold?
When a garage is ice-cold in the wintertime, it can be hard on your vehicles and anything else that you store in there. Furthermore, you may want to use that area for a home workshop or laundry room, as an extension of your living space. To choose a heater that will turn your garage from an oversized refrigerator into a comfortable, welcoming place, you need to pay attention to BTUs. Here’s how to use these units to calculate the right size garage heater for your unique situation:
How many BTUs per square foot?
Once you have completed steps 1 through 5 above, you’re ready to calculate the BTUs you need. As a basic rule, the figure will be between 30 and 60 B TUs per square foot. This part is simple, because you can just plug your information into your free and easy BTU calculator just below, and let it do the math for you. As you can see, it’s not going to be an exact result, because every building is a bit different. Even the color of your roof can have an effect on how much heat you need. However, plugging in your information will give you a result that is sufficient to help you select the right size heater. You can add an extra safety margin, just in case you overestimated the quality of your insulation.
How to calculate temperature rise for garage heater?
To calculate the temperature rise you need your heater to supply, subtract your cold outdoor winter temperature from your preferred indoor garage temperature. For instance, if you want to prepare for winter days that reach 15 degrees Fahrenheit, and you want your garage to be 65 degrees, you need a temperature rise of 50 degrees. 6.
How to calculate cubic feet of space?
To calculate cubic feet, you measure the ceiling height, and then multiply that by the number of square feet in the space. If you have a 300 square foot area, with a 10 foot high ceiling, then you multiply 300 X 10, to get 3,000 cubic feet. Calculating what size garage you have is only the beginning. When you think about making a room comfortable ...
What are BTUs?
BTU strand for British thermal unit. To clarify, one BTU is a pound of water temperature to increase the temperature of one degree Fahrenheit according to need. But the garage heater is warming the wind of your garage. So, it does not heat the water. However, this BTU is a standard way to know about the heating capacities of one unit measurement.
How Many BTUs Are Needed to Heat Your Garage
Now, you can learn how many BTUs need to heat the garage. Also, how many watts need to heat your garage? You can also know how much you want to add or remove air in your garage.
What Factors can Impact your Heating Needs
You cannot measure BTU like your own mind. But, here are some essential factors that are very important for heating. So, you cannot determine BTU excluding them. However, these issues come automatically during determining BTU. But it would be great if you had a good idea about them. So, let’s check these factors.
Steps to Choosing the Right Sized Heater
It would be great if you chose the right sized heater. That’s why you have to maintain some steps. So, let’s discuss these steps:
Ending Thoughts
I hope you have read the whole article attentively. Now, you can determine how many BTUs need to heat the garage. However, it’s a little complicated to find out. But not impossible. You can quickly determine it with the BTU calcul ator online by knowing all your information. It is essential to find BTU per hour.
How many BTUs are needed to raise the temperature of water?
One BTU is the amount of energy required to raise the temperature of one pound of water by 1 degree Fahrenheit. The measure itself is very small, but it is the base calculation upon which energy use is built. In 2018, the United States used approximately 101.3 quadrillion BTU of energy .
What are the factors that determine energy needs?
1. Climate and weather. Climate also plays a role in determining your energy needs. Warmer climates along the southern part of the United States - considered Zone 1 or 2 - require 30-40 BTU per square foot. The middle part of the country - Zone 3 and 4 - require between 40-45 BTU per square foot, while the northern areas ...
How many cubic feet are there in a 12x24 garage?
Using the previous information for a 12×24 garage, you’ll take the square feet and multiply it by the height of the ceiling to get the total cubic footage. On average, a ceiling in a garage is around 8ft. So, you’ll get the following: 8 x 288 = 2,304 cubic feet.
How to find the square feet of a garage heater?
To get the square feet, you’ll just want to measure the length and the width of your garage. From there , multiply the length by the width, and the resulting number is the square feet.
What is the best variable for insulation?
A variable of “1.5” is used when there’s little insulation. A variable of “1” is used when there’s an average amount of insulation. A variable of “0.5” is used when there’s excellent insulation.
Can you use more than one convection heater?
It can be easier to make use of more than one of these types. With something like a convection heater, they tend to work best on the floor, so that can limit how many of them you can use depending on what exactly you have in your garage.
How many BTUs per sq ft for a garage air conditioner?
For picking garage air conditioner capacity, it’s better to use the ’30 BTUs per sq ft’ rule. This is due to insulation differences, sun exposure, and higher garage ceilings.
What is the best AC unit for a garage?
Mini-split AC units are the best type of air conditioner for the garage. Unlike central AC, they are ductless and can deliver up to 30,000 BTUs of cooling effect. This makes them appropriate even for the biggest 4-car garages.
What is the most energy efficient air conditioner for a garage?
Mini-splits for the garage are by far the most energy-efficient (highest EER and SEER rating). Window AC unit is only an option if you have a wide enough window and a smaller garage. With all that in mind, let’s look at different types of air conditioners you can use to cool down a garage.
Why is it important to keep your garage cool?
Keeping a cool garage will help prolong the lifespan of garage items. Paint and gas are volatile, and even more so in high garage temperature s. Volatile organic compounds (VOCs) can evaporate a lot easier (and create an awful smell, be a detriment to your health) at higher temperatures. The best garage air conditioners can drive ...
Can mini splits heat a garage?
Most mini-splits for the garage are heat pumps; they can deliver let’s say 15,000 BTU of cooling effect in the summer and 12,000 BTU of heating effect in the winter. It’ s a 2-in-1 all season device, and you won’t have to buy a garage heater for the winter.
Can a garage door leak air?
We don’t have that problem with standard room air conditioners. Garages, however, tend to have quite a lot of holes. The air leakage can happen via the garage door, uninsulated walls, and even a hole in the window. Before you buy and turn on an AC unit, make sure that your garage is airtight.
Do you need a vent in a garage?
For proper venting, you need an opening in your garage. Window vent ing is most commonly used but for that, you do need a garage window. The exhaust hose is simply installed through the window with a specialized window seal kit that envelops the exhaust hose and covers the window, preventing cool air leakage.
What is BTU in fuel?
BTU is often used as a point of reference for comparing different fuels. Even though they're physical commodities and quantified accordingly, such as by volume or barrels, they can be converted to BTUs depending on the energy or heat content inherent in each quantity.
Why is BTU more useful than physical quantity?
BTU as a unit of measurement is more useful than physical quantity because of fuel's intrinsic value as an energy source. This allows many different commodities with intrinsic energy properties to be compared and contrasted; for instance, one of the most popular is natural gas to oil.
How many BTUs are in a watt?
1 BTU = 1,055 joules, 252 calories, 0.293 watt-hour or the energy released by burning one match. 1 watt is approximately 3.412 BTU per hour.
How does the color of a roof affect BTU?
The color of roofs can affect BTU usage. Darker surface absorbs more radiant energy than a lighter one. Even dirty white roofs (with noticeably darker shades) compared to newer, cleaner surfaces resulted in noticeable differences. Efficiency decrease of the heater or air conditioner with time.
How do ceiling fans help with BTU?
Ceiling fans can assist in lowering BTU usage by improving air circulation. Any home or room can be a victim of dead spots, or specific areas of improper airflow. This can be the back corner of the living room behind a couch, the bathroom with no vent and a big window, or the laundry room.
What temperature should I use for a house in Atlanta?
As a general rule of thumb, a temperature between 70 and 80°F is a comfortable temperature for most people. For example, a house in Atlanta might want to determine the BTU usage during winter. Atlanta winters tend to hover around 45°F with chances to reach 30°F occasionally.
