In hydronic HVAC systems, GPM stands for Gallons Per Minute. While CFM measures air volume, GPM measures the volume of water moving through your pipes, chillers, and coils. If you

In a high-efficiency air conditioning system, the TXV (Thermostatic Expansion Valve) is the precision metering device that acts as the “brain” of the cooling cycle. Unlike older, fixed-piston systems that

In the world of commercial climate control, an Economizer is a mechanical device that provides “free cooling.” Think of it as a smart window for your entire building. When the

In the hierarchy of climate control, an FCU (Fan Coil Unit) is the ultimate solution for localized comfort. Unlike a central air handler that tries to cool an entire building

In HVAC engineering, Enthalpy is the measurement of the total heat content in a parcel of air. Unlike a standard thermometer, which only measures Sensible Heat (temperature you can feel),

In the engineering world, RTU stands for Rooftop Unit. While most homes use a “split system” (where half the unit is outside and the other half is in a closet

In the world of HVAC diagnostics, your Manifold Gauge Set is your direct interface with the refrigerant cycle. While both 3-port and 4-port sets measure pressure, they handle Evacuation (Vacuum)

In the HVAC world, Static Pressure is the technical measurement of how much resistance your fan or blower motor is fighting against to move air through your home. Think of

In large commercial buildings, a VAV (Variable Air Volume) system is the ultimate energy-saver. Unlike older CAV (Constant Air Volume) systems that blast air at the same speed all day,

In the HVAC industry, MBH is a shorthand unit used to express large quantities of heat energy. The “M” comes from the Roman numeral for 1,000, and “BH” stands for

Removing a wall to create an “open concept” living space is a dream project, but that wall often hides the “veins” of your home—the HVAC ductwork. If you find a

Is HVAC easy? The honest answer is that it is a “Multi-Discipline Trade.” Unlike many careers that focus on a single skill, an HVAC technician must be a hybrid of

In the HVAC industry, FAU stands for Forced Air Unit. This is the specialized equipment—typically a furnace or a blower coil—that physically pushes air through your home’s ductwork. While people

Designing or renovating an HVAC Closet is a balancing act between saving floor space and ensuring your system can “breathe” and be serviced. While it’s tempting to build the smallest

In the dark, damp environment of an HVAC system, mold isn’t just a surface stain—it’s a biological system. Traditional cleaners like bleach often fail because they are mostly water; the

In many modern homes, the attic is the go-to spot for the FAU (Forced Air Unit). It clears up valuable closet space and simplifies ductwork runs to upper-floor bedrooms. However,

In the world of home repair, SharkBite (push-to-connect) fittings have revolutionized plumbing. They allow you to join copper, PEX, and CPVC without torches or glue. But when you move from

In the HVAC world, CFM stands for Cubic Feet per Minute. Think of it as the “volume” of air moving through your vents. If your CFM is too low, your

Is HVAC a good career for a Mechanical Engineer? Many MEs view HVAC as “applied plumbing,” but at the professional engineering level, it is a sophisticated study of Thermodynamics, Heat