❄️ MRCOOL Universal Series: Should You Choose 36k or 48k BTU?
If you’re shopping for a new HVAC system, MRCOOL’s Universal Series offers two powerful options: the 36,000 BTU and 48,000 BTU R-454B systems. Both are DIY-friendly, energy-efficient, and smart thermostat compatible—but which one is right for your home?
🏠 Home Size Matters
- The 36k BTU system is ideal for homes up to 1,800 sq ft.
- The 48k BTU system suits larger homes up to 2,400 sq ft.
If you’re unsure, check out our guide on based on square footage and insulation.
🌡️ Efficiency & Performance
Both units use eco-friendly and inverter technology for precise temperature control. The 36k model offers slightly higher SEER2 ratings, while the 48k model delivers more raw power for larger spaces.
🔇 Quiet HVAC Solutions
Noise levels are low across both models, but the 36k BTU unit operates a few decibels quieter—perfect for smaller homes or bedrooms near the condenser. Learn more about from MRCOOL.
🧰 DIY Installation & Flexibility
Both systems feature MRCOOL’s NO-VAC Quick Connect line sets and multi-position air handlers. Whether you’re installing in an attic, closet, or crawlspace, these units are designed for with minimal tools and no vacuum pump required.
🧠 Smart Thermostat Compatibility
Control your comfort from anywhere. Both models integrate with Nest, Ecobee, and other smart thermostats. Explore our to see how easy it is to automate your climate.
🛒 Final Verdict
- Choose the 36k BTU if you want quieter operation and are cooling a smaller home.
- Go with the 48k BTU if you need more power for a larger space.
Either way, you’re getting a top-tier system backed by MRCOOL’s 10-year parts warranty and 2-year labor coverage. Browse our full to find your perfect fit.
