Kieffer's Heating & Cooling v2.0

Kieffer's Heating & Cooling v2.0 Owner-operated HVAC service focused on comfort, airflow, and honest second opinions.

Real testing—not guesswork—to improve comfort, lower energy bills, reduce noise, ensure safe operation, and help systems run at peak efficiency.

06/12/2026

When you have the best tools, you can offer the best service.

This leak detector is one of the tools I’m proud to own. It’s considered one of the best leak detectors available in the HVAC industry, and its sensitivity and accuracy are remarkable.

When a customer has a refrigerant leak, I don’t like making assumptions or playing the “gas and go” game. I want to find the leak, verify the leak, and show the customer exactly where the leak is occurring.

In this video, I’m pinpointing a leak on an evaporator coil. Having the right tools allows me to provide answers instead of guesses, helping homeowners make informed decisions about their HVAC system.

Signed, Duct Sealed, and Delivered. ✅On a recent project, I found significant duct leakage that was pulling hot, dusty a...
06/11/2026

Signed, Duct Sealed, and Delivered. ✅

On a recent project, I found significant duct leakage that was pulling hot, dusty attic air directly into the HVAC system.

Most homeowners never see issues like this because they’re hidden above ceilings and behind walls. But when your system is pulling air from an attic instead of your home, it can affect comfort, indoor air quality, efficiency, and even the life expectancy of the equipment.

This is one of those details that I take very seriously. Anyone can replace a piece of equipment. I believe it’s just as important to make sure the system surrounding that equipment is doing its job correctly.

Over the years, I’ve found a surprising number of systems with issues like this. That’s why I spend so much time testing, inspecting, and verifying instead of assuming everything is okay.

The little things matter.

Providing this family with temporary cooling while I complete a LiDAR scan of their home to finish an ACCA Manual J heat...
06/02/2026

Providing this family with temporary cooling while I complete a LiDAR scan of their home to finish an ACCA Manual J heat load calculation for proper HVAC right-sizing. Better comfort starts with accurate measurements.

Today I’m performing a blower door test as part of a Manual J heat load calculation for a home in Miamisburg, Ohio. One ...
05/30/2026

Today I’m performing a blower door test as part of a Manual J heat load calculation for a home in Miamisburg, Ohio. One of the critical pieces of information I need is the home’s air leakage rate. This data helps determine how much heating and cooling the home actually requires.

When we know how the home performs, we can right-size the equipment instead of guessing.

This building science approach allows me to design systems that deliver better comfort, more even temperatures, improved humidity control, and greater efficiency. In many cases, I end up downsizing the equipment compared to what was previously installed, and the homeowner is surprised to find their home is more comfortable than it has ever been.

This is about much more than replacing an appliance.

It’s about understanding the house, measuring its performance, and engineering comfort around real data.

This is .

Most HVAC systems are sized based on assumptions.This isn’t.Running a blower door depressurization test to measure total...
05/21/2026

Most HVAC systems are sized based on assumptions.This isn’t.

Running a blower door depressurization test to measure total house leakage and gather real data for proper HVAC design and right-sizing. This also gives the homeowner valuable information about where the home is leaking and how those losses impact comfort, efficiency, humidity control, and system performance.

This is high-performance HVAC.
We don’t guess.
We measure.

05/20/2026

Sometimes the difference between “working” and “working reliably” is in the details.

That’s why I go out of my way and only stock AmRad USA-made capacitors. They’re individually tested, have rust-free brass terminals, and carry a 5-year warranty compared to the typical 1-year warranty on many others.

It costs a little more, but it helps protect expensive parts like the compressor and fan motor.

Details matter.

Nothing means more to me than hearing that the work actually changed how another experiences comfort in their home.This ...
05/16/2026

Nothing means more to me than hearing that the work actually changed how another experiences comfort in their home.

This is why I focus so heavily on proper load calculations, airflow testing, and system design instead of just “same size in, same size out.” Bigger is not always better — and neither is guessing.

Measured. Tested. Verified.

That’s the difference.

Cold air doesn’t always mean stress-free! This system was cooling the house, but at the cost of running under duress—due...
05/12/2026

Cold air doesn’t always mean stress-free! This system was cooling the house, but at the cost of running under duress—due to poor design and installation. It never reached its full potential. Don’t settle for ‘just cold air’—your system should perform efficiently and reliably.

🔥 Another High-Performance System Delivered – Designed, Tested, Proven. 🔥Most homeowners think installing a new HVAC sys...
05/02/2026

🔥 Another High-Performance System Delivered – Designed, Tested, Proven. 🔥

Most homeowners think installing a new HVAC system is just about putting in new equipment…

👉 The truth?
A system is only as good as how it’s designed, installed, and verified.

This home just received a complete system upgrade—and here’s what makes it different:

✔️ Right-Sized from Day One – Designed using a Manual J heat load calculation and selected to ACCA Manual S recommendations
👉 No oversizing. No guesswork. Just proper design.

✔️ Filtration Designed Correctly – The filtration system was properly sized and tested to protect the equipment and keep the air clean
👉 One of the most important—and most overlooked—parts of the system
👉 If no one is measuring pressure drop across the filter, no one is actually designing it to the system.

✔️ Airflow Verified – Delivering over 427 CFM per ton, exactly where it should be

✔️ Low System Stress – Total static pressure measured at just 0.298”… your system should breathe easy, not struggle

✔️ Leak-Free & Tight – Pressure testing confirmed the system is sealed and performing as intended

💡 Here’s the reality most homeowners aren’t told:

If a contractor isn’t measuring, they’re not designing.
And if they’re not measuring… they’re not testing.

Address

1017 Donson Drive
West Carrollton City, OH
45429

Opening Hours

Monday 8am - 8pm
Tuesday 8am - 8pm
Wednesday 8am - 8pm
Thursday 8am - 8pm
Friday 8am - 8pm
Saturday 8am - 12pm

Telephone

+19375464187

Website

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