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MRCOOL DIY: Finding the right BTU sizing for your home

Are you tired of sweating through hot summer days and shivering on cold winter nights? Look no further than MRCOOL, the DC inverter split system you need for your home. With their limited lifetime compressor warranty and high SEER efficiency rating, you can have peace of mind knowing you made the ideal choice for your home's heating and cooling needs.

But before you purchase a MRCOOL DIY system, you need to make sure you select the right size for your living space. Here's how to find the right BTU sizing for your home.

Understanding BTUs and Your Living Space

BTU stands for British Thermal Units and is a measure of the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. In HVAC systems, it is a measure of the cooling or heating capacity of an air conditioner or heat pump.

To find the right size unit for your living space, you first need to calculate the square footage of the room or rooms you want to cool or heat. Measure the length and width of each room and multiply the numbers together to get the total square footage.

Calculating Your Required BTUs

Once you know the square footage of your living space, you can use a simple formula to calculate the required BTUs for your MRCOOL DIY system:

For cooling capacity, multiply the square footage by 20 BTUs.

For heating capacity, multiply the square footage by 30 BTUs.

For example, if you want to cool a 300 square foot room, you would need a MRCOOL DIY unit with at least 6,000 BTUs (300 sq ft x 20 BTUs).

It's important to note that other factors can affect your required BTUs, such as the amount of sunlight that enters the room, the number of occupants, the number of windows and doors, and the climate in your area. If you have a particularly sunny room or live in a hot and humid climate, you may need a larger unit than the formula suggests.

Additional Tips for Choosing the Right Size MRCOOL DIY Unit

  • Take into account the number of windows and doors: These can let in additional heat during the summer and cold air during the winter, which can affect the required BTUs. For example, if you have a room with large windows that face the sun, you may need a larger unit to compensate for the added heat.
  • Consider the number of occupants: The more people in a room, the more heat they generate, which can affect the required BTUs. If you have a large family or often host guests, you may need a larger unit to cool or heat the space effectively.
  • Think about the orientation of your home: The direction your home faces can affect the amount of sunlight it receives, which can affect the required BTUs. For example, a room that faces north may require fewer BTUs than a room that faces west.
  • Take into account the insulation of your home: If your home has poor insulation, you may need a larger unit to compensate for heat loss during the winter.
  • Consider the size and layout of the room: A room with high ceilings or an open floor plan may require a larger unit to effectively cool or heat the space.

Choosing Your MRCOOL DIY Unit

Now that you know your required BTUs, it's time to choose your MRCOOL DIY unit. The 4th generation MRCOOL DIY system comes with everything you need for an easy DIY installation, including pre-charged line sets and quick connectors. The compact design and included mounting plate make it easy to install the outdoor condenser, while the indoor unit fits seamlessly into your living space for high air comfort.

MRCOOL offers both single-zone and multi-zone systems, so you can cool or heat one room or multiple rooms with one system. The ductless mini-split heat pump provides efficient heating and cooling in any mode, including cool mode, heat mode, and auto mode.

With MRCOOL's Smart HVAC app, you can control your system with your Android smartphone or with Google Assistant and Amazon Alexa voice commands. The app also allows you to set sleep mode, which gradually adjusts the temperature for comfortable sleeping conditions.

Maintenance Tips for Your MRCOOL DIY Unit

To ensure your MRCOOL DIY unit continues to work efficiently and effectively, it's important to perform regular maintenance. Here are some tips to keep your system running smoothly:

    • Clean or replace air filters regularly: Dirty filters can restrict airflow and reduce the efficiency of your system. Clean or replace the filters every three months, or more often if you have pets or allergies.
    • Clean the outdoor condenser unit: Dirt and debris can accumulate on the outdoor condenser, which can reduce airflow and efficiency. Clean the unit regularly, and trim any nearby foliage to ensure adequate airflow.
    • Check refrigerant levels: Low refrigerant levels can affect the efficiency and performance of your system. Have a professional check the refrigerant levels every two years to ensure they are at the proper levels.
    • Schedule regular professional maintenance: Hire a professional to inspect and maintain your system every year to ensure it is working properly and to catch any potential issues early.

For a complete guide on how to clean your MRCOOL unit, check out our blog on DIY Mini Split Cleaning. This helpful guide provides step-by-step instructions on how to clean your unit and keep it running smoothly.

Conclusion

In conclusion, finding the right BTU sizing for your home is crucial for selecting the ideal MRCOOL DIY system. To calculate the required BTUs, use the square footage of your living space and consider other factors that may affect your required BTUs, such as the number of windows and doors, the number of occupants, and the climate in your area. Once you know your required BTUs, choose the 4th generation MRCOOL DIY system that fits your needs for easy installation, efficient heating and cooling, and smart home compatibility.

By following the additional tips and performing regular maintenance on your MRCOOL DIY unit, you can ensure it continues to work efficiently and effectively for years to come. With its high SEER efficiency rating, limited lifetime compressor warranty, and easy DIY installation, the MRCOOL DIY system is the perfect choice for your home's heating and cooling needs.

FAQs

Q: What coverage does each BTU represent, and what size MRCOOL do I need?

A: The basic sizing for a MRCOOL system is based on square footage alone. Here are the general guidelines for choosing the right size based on BTUs:

12k BTU = up to 500 square feet.

18k BTU = 450 to 750 square feet.

24k BTU = 700 to 1000 square feet.

36k BTU = 950 to 1500 square feet.

Keep in mind that other factors, such as sunlight and climate, can affect your required BTUs.

Q: How many BTUs do I need for a two-car garage mini split?

A: For a two-car garage, you'll need a more powerful mini-split with 9,000 to 12,000 BTUs. However, the exact size you need depends on the dimensions of your garage.

Q: Can a mini-split cool a whole house?

A: Yes, a ductless mini-split air conditioner can cool and heat a whole house with the right system and proper care. Multiple units can be connected to a network that efficiently provides air across the entirety of the home. However, most homes require multiple mini-split air conditioning units to cool them effectively.

Q: What is a ductless mini-split system?

A: A ductless mini-split system is a type of HVAC system that provides heating and cooling without the need for ductwork.

Q: What is the SEER efficiency rating?

A: The SEER efficiency rating is a measure of an air conditioner or heat pump's efficiency. The higher the SEER rating, the more efficient the system is.

Q: What is the MRCOOL limited lifetime compressor warranty?

A: The limited lifetime compressor warranty ensures that the compressor in your MRCOOL system is covered for the life of the unit.

Q: How do I determine the appropriate BTU size for my room?

A: When selecting the appropriate BTU size for your room, consider factors such as the room's purpose, ceiling height, number of windows and doors, and any electronics or appliances that generate heat. If the room has more windows or doors, or has higher ceilings, you may need to adjust the BTU size upward. Additionally, rooms with appliances such as stoves and ovens or electronics may require additional BTUs due to the extra heat generated.

Q: Can I install a MRCOOL DIY ductless mini splits system myself?

A: Yes, the MRCOOL DIY system is designed for easy DIY installation without the need of special tools. It comes with pre-charged line sets and quick connectors, so you don't need to hire a professional or an HVAC contractor.

Q: What is the Smart HVAC app?

A: The Smart HVAC app is a mobile app that allows you to control your MRCOOL DIY system with your smartphone or with voice commands through Google Assistant or Amazon Alexa. You can set temperatures, schedules, and sleep mode through the app.

In summary, choosing the right BTU sizing for your MRCOOL DIY system is crucial for ensuring efficient and effective heating and cooling of your home. By considering the factors mentioned above and performing regular maintenance on your unit, you can enjoy the benefits of a comfortable home environment year-round.

1 comment

When calculating BTU for the room size for, if using two wall mounted units and separate room assume you add together the square footage for each room together to calculate required BTU? Can you confirm if this correct
Thanks

Graham Johnson ,

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