HVAC Tips
Smart Controls & App Setup: How Mike Automated His Two Zones
Mike shows how he wired up apps, voice, sensors, and automations to run a MRCOOL 27k two-zone system smarter—less energy, steadier comfort, zero fuss.
Climate Zone Math — Why a 27k in Florida Isn’t the Same as in Colorado
Mike explains why the same 27k BTU MRCOOL system performs differently in Florida vs. Colorado — the hidden math of humidity, altitude, and load factors.
How R-32 Changed Mike’s Setup — Smaller Charge, Bigger Efficiency
Mike breaks down how R-32 transformed his 2-zone MRCOOL setup — smaller refrigerant charge, higher SEER2 efficiency, and full 2025 AIM-Act compliance.
DIY Installation Walkthrough: How Mike Mounted, Connected, and Vacuumed His MRCOOL 27k System
Follow Mike’s real-world, step-by-step guide to installing the MRCOOL 27k 5th Gen 2-Zone (9k + 18k) system — from mounting to line sets, leak checks, and startup.
Ductwork Efficiency: The Hidden Variable in System Sizing
Climate Zone Math — Why a 2.5-Ton in Texas Isn’t the Same as in Michigan
How R-32 Systems Changed the Sizing Game in 2025
The Cost of Being Oversized — Why Bigger Isn’t Better in HVAC
Square Footage vs. System Size — The Real Math Mike Used for His 2-Zone Setup
Forget the guesswork. Mike shows the step-by-step math he used to size a MRCOOL 27,000 BTU 2-zone (9k + 18k) system—covering climate, and Manual J principles.
Square Footage vs. System Size — The Real Math Mike Uses on Every Job
Rebates, Tax Credits & Energy Savings: How Mike Claimed His 2025 Incentives
Discover how Mike saved big with 2025 HVAC rebates and tax credits using his MRCOOL 48k 3-Zone Mini Split. Learn how you can claim Energy Star and IRA incentives.