MRCOOL Learning Center
MRCOOL Furnace Cabinet Sizes Explained (A, B, C...
Learn how MRCOOL furnace cabinet sizes (A, B, C, and D) affect your HVAC install. This guide explains cabinet widths, system compatibility, and how to choose the correct coil flange...
MRCOOL Furnace Cabinet Sizes Explained (A, B, C...
Learn how MRCOOL furnace cabinet sizes (A, B, C, and D) affect your HVAC install. This guide explains cabinet widths, system compatibility, and how to choose the correct coil flange...
Why Your MRCOOL Mini Split Comes with One Black...
If your MRCOOL mini split came with only one black air freshener filter even though the indoor unit has two slots, you're not alone. In this guide we explain what...
Why Your MRCOOL Mini Split Comes with One Black...
If your MRCOOL mini split came with only one black air freshener filter even though the indoor unit has two slots, you're not alone. In this guide we explain what...
New EPA 15 lb Refrigerant Leak Rule (2026): Wha...
As of January 1, 2026, the EPA lowered the refrigerant leak repair threshold from 50 lbs to 15 lbs, expanding federal oversight on HVAC systems using R-410A and other HFC...
New EPA 15 lb Refrigerant Leak Rule (2026): Wha...
As of January 1, 2026, the EPA lowered the refrigerant leak repair threshold from 50 lbs to 15 lbs, expanding federal oversight on HVAC systems using R-410A and other HFC...
Do MRCOOL DIY Pre-Charged Line Sets Leak? The T...
MRCOOL DIY pre-charged line sets use precision-engineered, self-sealing quick connect valves designed to release refrigerant only after a proper seal is formed. Learn how they work, why most leaks come...
Do MRCOOL DIY Pre-Charged Line Sets Leak? The T...
MRCOOL DIY pre-charged line sets use precision-engineered, self-sealing quick connect valves designed to release refrigerant only after a proper seal is formed. Learn how they work, why most leaks come...
MRCOOL 5th Gen DIY Multi-Zone Heat Pump Guide |...
Discover the next generation of MRCOOL DIY® comfort. The 5th Gen Multi-Zone Series delivers powerful heating and cooling for up to six zones, now using eco-friendly R-454B refrigerant and ENERGY...
MRCOOL 5th Gen DIY Multi-Zone Heat Pump Guide |...
Discover the next generation of MRCOOL DIY® comfort. The 5th Gen Multi-Zone Series delivers powerful heating and cooling for up to six zones, now using eco-friendly R-454B refrigerant and ENERGY...
Top 5 MRCOOL Systems for Homeowners in 2025
Discover the top 5 MRCOOL HVAC systems for 2025, including DIY and professional options—all featuring the new R-454B refrigerant. Compare Gen 5 DIY, EZPRO, Advantage, Hyper Heat, and VersaPro to...
Top 5 MRCOOL Systems for Homeowners in 2025
Discover the top 5 MRCOOL HVAC systems for 2025, including DIY and professional options—all featuring the new R-454B refrigerant. Compare Gen 5 DIY, EZPRO, Advantage, Hyper Heat, and VersaPro to...