HVAC Tips
Why Your HVAC Needs a Drain Pan & How to Pick the Right One
By Mark — Your Home Comfort Troubleshooter
If you’ve ever seen a brown water stain slowly spreading across your ceiling, you already know water dam...
Air Filters Explained: Sizes, MERV Ratings & Replacement Schedules
🌀 Air Filters Explained: Sizes, MERV Ratings & Replacement Schedules
By Mark — Your Go-To DIY HVAC Guy
If there’s one thing I see homeowners un...
Choosing the Right Thermostat: Smart, Programmable, or Manual?
By Mark — Your DIY HVAC Companion
Thermostats aren’t just wall dials—they’re the command center for your home's comfort and energy use. Whether you...
What HVAC Accessories Do You Really Need? Mark’s Essential List for Homeowners
As someone who's spent more than a few weekends tinkering with HVAC systems, I’ve learned that the right accessories are like trusty hand tools—the...
Which Tools Do You Need to Install the DIY35-1412C MRCOOL Lineset?
Installing the MRCOOL DIY35-1412C 35ft pre-charged lineset is a manageable task for most homeowners—but only if you have the right tools on hand. W...
How Long Do MRCOOL Linesets Last? Durability, Warranty & Maintenance Tips
When you install a MRCOOL DIY mini split system, the pre-charged lineset is one of the biggest advantages—no vacuum pump, no refrigerant handling, ...
Avoid These Common DIY Mistakes When Working with MRCOOL Pre-Charged Linesets
Installing your MRCOOL DIY mini split system can be a satisfying, money-saving project—as long as you avoid the mistakes that can derail your progr...
Do You Need a Wall Sleeve or Cover Kit for Your 35ft Lineset?
If you're installing a MRCOOL mini split system with a 35ft pre-charged lineset like the DIY35-1412C, you may be tempted to skip the extras like wa...
Can You Bury the MRCOOL Pre-Charged Lineset? Outdoor Routing Tips & Pitfalls
When installing your MRCOOL DIY mini split system, you're probably thinking about clean lines, weather protection, and efficiency. And if you want ...
Line Set Extensions and Couplers: When 35ft Still Isn’t Enough
If you've already chosen a MRCOOL DIY mini split system and purchased a 35ft pre-charged lineset like the DIY35-1412C, you're probably feeling conf...
Installing the 35ft MRCOOL Lineset: What Mark Learned the Hard Way
When I decided to install a MRCOOL DIY mini split system in my upstairs bonus room, I thought the hardest part would be lifting the condenser into ...
Is the DIY35-1412C Line Set Compatible with Your MRCOOL Mini Split?
When it comes to installing a MRCOOL DIY mini split system, choosing the correct pre-charged line set is just as important as selecting the air han...