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News
MRCOOL DIY Multi-Zone Line Set Guide: Sizes, Lengths, Coupler Kits & R-454B Compatibility
Learn how to choose MRCOOL DIY 5th Gen R-454B line sets. Compare line sizes, 16–50 ft factory lengths, extensions up to 75 ft with compatible DIY Quick Connect Coupler Kits, communication cable and Multi-Zone planning.
Read moreMRCOOL DIY 5th Gen Multi-Zone Installation Guide: Step-by-Step Tips
Installing a MRCOOL DIY 5th Gen Multi-Zone system? Learn how to plan indoor and outdoor unit locations, route R-454B Quick Connect line sets, manage drainage, prepare electrical requirements and avoid common installation mistakes.
Read moreHow Many Zones Can a MRCOOL Multi-Zone System Have? 2–6 Zone Guide
How many zones can a MRCOOL DIY Multi-Zone system handle? Compare 2-zone through 6-zone configurations and learn which 5th Gen condenser can support your project.
Read moreMRCOOL DIY 5th Gen Multi-Zone Buying Guide: Which System Should I Buy?
Not sure which MRCOOL DIY 5th Gen Multi-Zone system to buy? Compare the 18K, 27K, 36K, 48K and 55K condensers, indoor-unit options, zones, line sets and key buying considerations before ordering.
Read moreMRCOOL DIY Multi-Zone 2/3 Rule Explained: Configuration & Sizing Guide
What is the MRCOOL Multi-Zone 2/3 Rule? Learn why connected indoor capacity should be at least two-thirds of condenser capacity, how to calculate it for 18K through 55K DIY 5th Gen condensers, and what to check before building your system.
Read moreMRCOOL DIY 5th Gen Multi-Zone Sizing Guide: What Size System Do I Need?
What size MRCOOL DIY 5th Gen Multi-Zone system do you need? Learn how to size each room, compare indoor BTU options, choose between 18K–55K condensers, and plan a compatible multi-zone system.
Read moreMRCOOL DIY 5th Gen Multi-Zone Complete Guide: Sizing, Indoor Unit Options, Installation & More
Planning a MRCOOL DIY 5th Generation Multi-Zone system? Compare 18K–55K condensers, wall-mounted air handlers, OuttaSight ceiling cassettes and DIY Hybrid ducted air handlers, plus learn about sizing, R-454B Quick Connect line sets, heat-kit options and installation planning.
Read moreWhat Size RV Air Conditioner Do I Need? Complete RV AC BTU Sizing Guide
Not sure what size RV air conditioner you need? This complete RV AC BTU sizing guide explains the difference between 13,500 and 15,000 BTU rooftop air conditioners and how RV size, climate, insulation, slide-outs, sunlight, and electrical requirements can affect your cooling needs. We’ll also explain how the MRCOOL® TravelCool™ 15,000 BTU RV Inverter Heat Pump provides inverter-driven cooling and heating, 120V operation, and ducted or ductless options for year-round RV comfort.
Read moreMRCOOL TravelCool vs. Traditional RV Air Conditioner: Is an Inverter RV AC Worth It?
Wondering if an inverter RV air conditioner is worth the upgrade? Compare the MRCOOL® TravelCool™ 15,000 BTU RV Inverter Heat Pump with traditional rooftop RV air conditioners. Learn how inverter technology can provide quieter operation, smoother temperature control, efficient power use, and both heating and cooling. We’ll also cover 120V power requirements, ducted vs. ductless options, RV rooftop AC replacement considerations, and what to check before choosing the right TravelCool system for your RV.
Read moreMRCOOL TravelCool Ducted vs. Ductless RV Air Conditioner: Which Is Right for Your RV?
Choosing between a ducted and ductless RV air conditioner doesn’t have to be confusing. This MRCOOL TravelCool guide explains how each configuration works, which type of RV each is best suited for, and what to check before you buy.
Read moreMRCOOL TravelCool RV Air Conditioner Installation Guide: Roof Opening, Power Requirements & Ducted vs. Ductless
Installing a MRCOOL® TravelCool™ RV rooftop air conditioner and heat pump? Learn the required 14.17” × 14.17” roof opening, 120V electrical requirements, recommended 16A breaker, maximum roof thickness, ducted vs. ductless options, R-32 safety considerations, rooftop placement and important installation checks before your first startup.
Read moreMRCOOL TravelCool RV Air Conditioner Maintenance Guide
Keep your MRCOOL® TravelCool™ RV rooftop air conditioner and heat pump running at its best with this complete maintenance guide. Learn how to clean the filter, inspect the rooftop unit, check airflow and roof seals, maintain the remote, prepare for RV trips, understand C2 cold-weather protection, and know when to call a professional. A practical guide for TravelCool owners who want reliable heating and cooling season after season.
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