MAC A/C & Heat

06/14/2026

❄️ Air distribution at it finest!🔥

Custom marble ventilation🏛️
Handcrafted wood registers🪚
Low wall or baseboard vents⬇️
Mud in invisible grills 🔍

06/06/2026

One of our regularly occurring past times, is fixing what other “professionals” installed.
Get it done right the first time by the 🤓

05/26/2026

Our 64+ Point Inspection gives you a documented PDF report on your HVAC system’s performance.
Our Bluetooth tools automatically file all pressure readings and performance data. If refrigerant is needed, the scale automatically inserts the amount of refrigerant used into the document. This ensures you of exactly what we did for optimal operations.
Give us a call today at 318-372-6275, to schedule a top service technician.

04/07/2026

We are proud to introduce Kenneth Carpenter as our newest team member and technician.
“My name is Kenneth Carpenter. As a resident of Ouachita Parish, it is my honor to introduce myself as the lead service technician for MAC A/C and Heat. I have built a career in this field, including experience in property management, multi family housing, residential, light commercial service and repair.
I understand how important your home, business, or investment is to you and your family, so we will treat every job as if it were our own. I will strive to ensure that you are provided with the highest quality of service, which will include a documented pdf report of HVAC system repair and performance.
I’m excited to be part of a team that also understands building science. The testing that we offer, confirm that your system is properly sized to achieve maximum energy efficiency, which can save you thousands in energy bills.
Contact us today for any of your HVAC services you may need.”

04/06/2026

Energy efficient ✔️
Duct tightness test ✔️
Blower Door Test ✔️
Make Up Air System ✔️
Insulated Exhaust ✔️

03/16/2026

WE ARE HIRING!

HVAC installers needed.

This is a great career opportunity. We are looking for experienced installers ready to join a growing team. The position will come with a company truck and all tools needed.

Please email your qualifications and/or resume to [email protected].

03/08/2026

No, you cannot directly swap an R32 condenser onto an existing R410A air handler.
R32 is a mildly flammable (A2L) refrigerant requiring different safety protocols, and it operates with different pressures and components, leading to potential equipment failure, safety hazards, and voided warranties.

Why You Cannot Mix Them:
Safety & Codes: R32 is classified as A2L refrigerant. Systems designed for R32 require specific safety sensors and, in some cases, enhanced ventilation that R410A air handlers lack.
Incompatible Components: The metering devices (TXV/orifice) and, in some cases, the coil in your R410A unit are not rated or calibrated for R32.
Oil and Lubricant Issues: The lubricants used with R410A may not mix properly with R32, causing potential compressor failure.
Warranty Voided: Manufacturers prohibit mixing R32 outdoor units with R410A indoor units, which will immediately void your warranty.
While the copper piping (lineset) can often be reused if flushed properly, the indoor air handler and outdoor condenser must be an approved, matched pair. It is highly recommended to replace the entire system to ensure safety and performance.

01/25/2026

HEAT PUMPS IN COLD CLIMATES

Heat pumps will run and work below freezing temperatures, as low as -5 on some SEER2 models. When the defrost mode engages, the auxiliary heat will come on. You may experience slightly less warm air in this mode. Every brand can be a little different in its old climate efficencies.

Inverter heat pumps can run as low as -20 depending on the brand. For even more reliability, we now offer side discharge units that can be mounted on the wall. This prevents ice or snow from accumulating on the fan discharge.

All heat pumps need to have a back up emergency heat. This is for when your heat pump fails and can be done with electric heating elements or gas. The added benefit to gas(though it’s more expensive), is that it can be run with 120 volt generator. Make sure to use an inverter or “clean electricity”generator that provides a pure sine wave.

Prevent heat pump failure by ensuring consistent airflow and scheduling regular, professional maintenance. Key actions include changing air filters every 1–3 months, keeping the outdoor unit clear of debris, ice, and snow, and scheduling annual tune-ups. We recommend having a highly trained technician service your systems twice a year. Usually in April as the weather starts to warm up and in October as it start to cool off. Proper sizing and installation practices are always imperative!

Emergency heat can be used by itself at anytime. Use this as a last resort as it uses three times the electricity, unless it’s a dual fuel gas system. And during severe weather, the electrical grid is already maxed out. Plus, no one wants a higher electric bill.

01/14/2026

A blower door test uses a large, calibrated fan in an exterior door to depressurize a house, measuring how much outside air leaks in through cracks and gaps to quantify its airtightness, helping to find drafts, improve energy efficiency, reduce utility bills, and ensure proper ventilation for indoor air quality. You do it to identify hidden air leaks, document energy performance, meet building code, and make targeted air-sealing improvements, saving money and increasing comfort.

A house can be too tight if it lacks proper mechanical ventilation, leading to poor indoor air quality, moisture buildup (mold/mildew), and potential safety issues like combustion appliance backdrafting, but the building itself shouldn't be sealed; instead, it should be built tight and ventilated right with controlled systems like Energy Recovery Ventilators(ERVs). The solution isn't leaky walls, but adding systems (like HRVs/ERVs) that provide fresh, preconditioned, filtered air while exhausting stale air, ensuring healthy air without sacrificing energy efficiency.

01/11/2026

SEER2 (Seasonal Energy Efficiency Ratio 2) is the updated U.S. Department of Energy standard for measuring central air conditioner and heat pump cooling efficiency, replacing the older SEER rating for equipment manufactured from 2023 onward, featuring stricter testing that better reflects real-world performance by increasing external static pressure in ductwork. Higher SEER2 numbers mean greater energy efficiency, leading to lower utility bills, with new minimum ratings mandated by region, making units tested under SEER2 appear lower in number than their SEER counterparts but representing true field performance.

AFUE stands for Annual Fuel Utilization Efficiency, a percentage rating that shows how efficiently a furnace or boiler converts fuel into heat for your home, with higher numbers indicating less wasted energy and more cost savings. For example, a furnace with 90% AFUE converts 90% of the fuel into usable heat, while the other 10% goes up the chimney as exhaust.

HSPF stands for Heating Seasonal Performance Factor, an efficiency rating for heat pumps that measures how much heat (BTUs) they deliver per unit of electricity (watt-hours) over a heating season, with a higher number indicating greater energy efficiency and lower operating costs. It's the heating equivalent of the SEER (cooling) rating, with the newer HSPF2 standard providing more accurate, real-world testing for modern systems, reflecting improved testing conditions.

These ratings determine how efficient your HVAC system is. The higher the number, the more energy you may save.