Your office is stuffy.
It’s tucked away in the back corner of your home, with the closest air duct in the next room.
It’s sweltering in the summer and frigid in the winter.
A mini split sounds perfect for controlling your office’s climate, but what size do you need? What does “measured in BTUs” mean?
Keep reading, and we’ll explain BTUs and the size mini-split your space needs so you’re never left sweating or piling on blankets.
What You’ll Learn:
- Mini Splits Explained
- BTUs Explained
- Finding the Right Size for Your Home
- Sizes of Mitsubishi Mini Splits
Mini Splits Explained
Mini-splits are known for their energy efficiency and ease of installation, particularly in homes without existing ductwork.
They allow you to control temperatures independently in different zones of your home.
In the diverse climate we see in eastern Pennsylvania and northern Delaware, mini splits provide efficient cooling to combat the region’s high humidity and heat and reliable heating even in freezing temperatures.
You can choose between single zone and multizone, which can power up to 5 indoor units, although larger models can power up to 11.
The Kauffman Choice: Mitsubishi Mini Splits
They come in all sizes and capacities, but Kauffman Gas explicitly installs Mitsubishi mini splits for their excellent energy efficiency and reliability.
Their ductless cooling and heating systems follow ENERGY STAR guidelines, which means they’re far more energy efficient than the U.S. government’s minimum standards.
BTUs Explained
BTU stands for British Thermal Unit, a measure of heat energy.
One BTU is the amount of energy required to raise the temperature of one pound of water by one degree Fahrenheit.
Finding the Right Size for Your Home
When selecting a mini split system, the BTU rating indicates the unit’s capacity to heat or cool a given area.
The goal is to match the BTU rating of the system to the heating or cooling load of the space to ensure optimal performance and efficiency.
Here’s how the process works:
Measuring the Space
When our technician arrives at your home or business, they start by calculating the square footage of the room or area that needs heating or cooling.
They also note if the ceiling is higher than 8 feet since ceiling height affects air distribution and circulation and may require a mini split with higher capacity to maintain consistent comfort levels.
Considering Room Factors
Your space is much more than four walls, a floor, and a ceiling. Some other factors need to be considered to make the most accurate BTU requirement calculation for your mini split.
- Considering Insulation and Climate: Well-insulated areas may require less capacity, while spaces with poor insulation need more robust cooling and heating capabilities. Our technicians evaluate how well your space retains heat or stays cool. They also assess the wall thickness and R-value (a measure of thermal resistance) to determine the insulation quality.
- Evaluating Windows and Sun Exposure: Our technician notes the number of windows, their size, and their orientation (e.g., south-facing). This information helps determine the amount of additional cooling needed during hot summers or the impact of solar heat gain.
- Other Heat Sources: Our technician also takes note of other heat sources such as appliances and lighting that contribute to the overall heat load.
- Personal Comfort Preferences: Your comfort matters to us. Our technician will ask about your preferred indoor temperatures and any specific comfort requirements you have. This information guides their recommendation for a mini split system that meets your needs year-round.
Using a Heating/Cooling Calculator
The technician will employ a heating/cooling load calculator to determine the precise BTU requirements for the space. This tool helps in factoring all the variables and arriving at an accurate BTU figure necessary for the mini split system.
For most rooms, these are the BTU to square footage rules:
- 6,000 BTUs Up to 250 sq ft.
- 9,000 BTUs 250-400 sq ft.
- 12,000 BTUs 400-600 sq ft.
- 15,000-18,000 BTUs 600-1,000 sq ft.
- 24,000+ BTUs 1,000+ sq ft.
Sizes of Mitsubishi Mini Splits
Mitsubishi offers a range of mini split systems to suit various heating and cooling needs. Each size corresponds to different BTU capacities, catering to spaces of varying sizes and configurations.
The average wall-mounted air handler is 12x32x9 inches. An average heat pump for one to two handlers is 24x32x12 inches.
Depending on your room space and BTU requirements, our technician will recommend your top options.
Mitsubishi Mini Split Categories
Deluxe
(6,000 – 18,000 BTUs)
- Sound: as low as 20 dB(A)
- SEER2: up to 32.2
- HSPF2: up to 11.9
- COP: up to 4.68
Take Control of Your Comfort with Kauffman Gas
Choosing a mini split from Kauffman Gas ensures not only superior comfort and energy efficiency but also tailored solutions that meet your unique heating and cooling requirements.
Schedule your install and claim 10% off your mini split install.
FAQs
What factors should I consider when choosing the size of a mini split system?
When selecting a mini split system size, consider the square footage of the space, the room’s insulation quality, window sizes and exposure, ceiling height, and other heat sources. Additionally, personal comfort preferences and the local climate play significant roles in determining the right size.
How does room size affect the required BTU capacity for a mini split?
The size of the room directly influences the BTU (British Thermal Unit) capacity needed. Generally, larger spaces require a mini split with higher BTU ratings to efficiently heat or cool the area without overworking the system.
Can one mini split handle multiple rooms?
Yes, multi-zone mini split systems can handle multiple rooms. These systems include one outdoor unit connected to several indoor units, each controlled independently. This setup is ideal for maintaining different temperatures in various spaces.
What is a BTU, and why is it important in choosing a mini split?
A BTU measures the amount of energy your mini split system uses to remove or add heat from the air per hour. Higher BTU ratings indicate a greater capacity to affect temperature changes in larger spaces, making it a crucial factor in selecting the appropriate mini split size.
Is it better to oversize or undersize a mini split system for my space?
It is generally better to avoid both. Oversizing can lead to short cycling, where the mini split turns on and off rapidly, inefficiently using energy and wearing out components. Undersizing might result in inadequate heating or cooling, as the system struggles to meet the demands of the space. Proper sizing ensures efficient operation and comfort.