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Mike Davis Senior HVAC Technician

For more than 20 years, Mike Davis has been getting his hands dirty in the HVAC industry. Unlike industry executives who view heating and cooling from behind a spreadsheet, Mike views it from inside an attic in the middle of July. As the Senior HVAC Technician at Budget Heating, Mike is responsible for technical customer support, product testing, and educational content creation. He is the expert homeowners turn to when they need to know the difference between a bad capacitor and a seized compressor.

From the Field to the Frontline

Mike’s career began in the trenches of the trade. Starting as an apprentice in the late 90s, he spent his first decade performing hundreds of installations and service calls. He earned his stripes crawling through crawlspaces, brazing linesets in scorching heat, and diagnosing electrical gremlins in freezing temperatures. This boots-on-the-ground experience gave him a deep appreciation for the technical precision required to make a system run efficiently.

He joined the Budget Heating team because he saw a glaring gap in the market: homeowners were buying high-quality equipment online but often lacked the technical guidance to ensure a successful outcome. Mike transitioned from full-time field work to becoming the head of technical support, dedicating his time to translating complex industry jargon into plain English for the everyday DIYer and project manager.

The Technical Support Mission

At Budget Heating, Mike oversees a team of support specialists who handle the "tough questions." While the sales team handles logistics, Mike handles the physics. Whether it is explaining the importance of a proper nitrogen purge during brazing, calculating static pressure for ductwork, or troubleshooting an inverter board error code, Mike brings professional-grade expertise to the direct-to-consumer market.

His day-to-day involves vetting new equipment lines for reliability before they are listed on the site and creating the technical resources that accompany our products. He is a strong advocate for the "hybrid approach"—where homeowners purchase their own equipment to save money but partner with licensed pros for the critical final connections (refrigerant and high-voltage electrical).

Philosophy: Precision Over Shortcuts

Mike’s core philosophy is simple: "Physics doesn't care about your schedule." He believes that 90% of HVAC failures are due to installation errors, not equipment defects. Through his guides and direct support, he preaches the importance of pulling a proper vacuum (below 500 microns), checking superheat and subcooling, and strictly adhering to NEC electrical codes. He believes that an informed customer is a satisfied customer, and that safety should never be compromised for cost.

Why Trust Mike's Advice?

Mike holds an EPA Universal Certification and has maintained NATE (North American Technician Excellence) certifications throughout his career. When you read a guide written by Mike, you aren't reading copy written by a marketing intern. You are reading advice from someone who has personally installed, repaired, and maintained every brand we sell.

He knows exactly what happens when a unit is oversized, he knows the sound a scroll compressor makes before it dies, and he knows how to save you thousands of dollars by preventing common installation mistakes. Mike isn't here to sell you the most expensive unit; he is here to ensure the unit you buy actually works for your specific home.

Talk to an expert: call us at 813-885-7999 or Request a Quote

Technical FAQs with Mike

  • I want to replace my own AC. Can I really do this myself?

    You can do a significant amount of the work, but there are limits. I always tell customers: set the unit, run the thermostat wire, and handle the ductwork modifications yourself to save big money. However, for the final refrigerant line connection and high-voltage wiring, I strongly recommend hiring a licensed pro. You need specialized tools (vacuum pump, micron gauge, recovery machine) to do that part legally and correctly.

  • What is the most common mistake you see homeowners make?

    Oversizing the equipment. People think "bigger is better," but in HVAC, bigger is a disaster. If you put a 5-ton unit on a house that needs a 3-ton, the system will short-cycle. It cools the air too fast without removing the humidity, leaving your house feeling cold and clammy, and it wears out the compressor prematurely. Trust the load calculation, not your gut.

  • Why is SEER2 important, and do I need the highest rating?

    SEER2 is the new efficiency standard that gives you a more realistic idea of how the unit performs in real-world conditions. While high SEER2 units (20+) are amazing and quiet, they aren't always the best financial choice for everyone. If you live in a mild climate, a standard 14.3 or 15.2 SEER2 unit might offer a better return on investment. I help you do the math to see if the energy savings justify the higher upfront equipment cost.

  • My old unit used R-22. Can I just swap it for a new R-410A or R-32 unit?

    No, you cannot mix refrigerants or oils. If you are replacing an old R-22 condenser, you almost certainly need to replace the indoor evaporator coil and likely the lineset as well (or flush it thoroughly). The operating pressures of modern refrigerants like R-410A and the new A2L refrigerants (R-32/R-454B) are much higher. Mixing them will destroy your new compressor instantly.

  • How do I know if I have a heat pump or straight cool AC?

    Go outside to your condenser unit and look through the top grille fan. If you see a brass valve with three pipes connected to it (a reversing valve) near the compressor, you have a heat pump. Also, if your thermostat has an "Emergency Heat" setting, that's a dead giveaway. It is critical to know this before ordering parts or a replacement system.

  • Why is my new system freezing up?

    Ice is the enemy! It usually means one of two things: lack of airflow or low refrigerant. First, check your filter—if it's dirty, change it. If the filter is clean, check your return vents for blockages. If airflow is good, you might have a refrigerant leak or a metering device issue. Turn the system to "Fan On" and "Cool Off" to thaw it out, and then call a tech to check your pressures.