Choosing the Right AC Size for a 1700 sq ft House: Guide to Selecting an Air Conditioner for Your HomeSarah ThompsonJan 15, 2026Table of ContentsQuick SummaryFactors to Consider for AC SizingCommon Mistakes to AvoidFAQFree Smart Home PlannerAI-Powered smart home design software 2025Home Design for FreeQuick Summary- For a 1700 sq ft house, you typically need approximately 30–35 BTUs per sq ft, equating to around 50,000–60,000 BTUs.- Undersizing leads to inadequate cooling, while oversizing can cause short cycling and higher energy/maintenance costs.- Factors like number of windows/doors, house orientation, insulation quality, and local climate can require increasing BTU capacity.When it comes to keeping your home comfortable, choosing the right size air conditioner for a 1700 sq ft house is crucial. An air conditioning unit that is too small will struggle to cool your space, while one that is too large can lead to higher energy bills and inefficient cooling. To find the ideal AC size, we typically measure cooling capacity in BTUs (British Thermal Units). For a space of 1700 sq ft, a good rule of thumb is that you will need approximately 30-35 BTUs per square foot. This means you should look for an air conditioning unit with a capacity of around 50,000 to 60,000 BTUs.Factors to Consider for AC SizingBesides the square footage, several factors influence the specific requirements for your air conditioning unit. These include the number of windows and doors, the orientation of your house, the insulation quality, and even the climate of your area. For instance, if your home has a lot of windows or faces the sun most of the day, you may need to increase the BTU capacity.Common Mistakes to AvoidOne common mistake homeowners make is underestimating their cooling needs, especially in regions with high temperatures. Conversely, oversizing can cause short cycling, which not only affects comfort but can also lead to higher maintenance costs. It's always a good idea to consult with a professional to get an accurate assessment of your cooling needs.FAQWhat size air conditioner do I need for a 1700 sq ft house? Typically, between 50,000 to 60,000 BTUs.How can I improve the efficiency of my AC? Regular maintenance and ensuring proper insulation can significantly enhance efficiency.welcome to CoohomHome Design for FreePlease check with customer service before testing new feature.