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A Smarter Approach to HVAC Replacement

From an engineer-grade home evaluation to professional installation, we take the guesswork out of choosing the right HVAC system for your home.

Why Choose a Daikin FIT Dual-Fuel System?

The perfect balance of efficiency, comfort, and savings—installed the right way.

As a Daikin 3E Preferred Contractor, we provide advanced, ultra-quiet comfort solutions–backed by factory training and precision engineering.

Whisper-Quiet Comfort

Enjoy consistent temperature control without the noisy disruptions of traditional units.​

Intelligent
Operation

Automatically switches between electric inverter and gas furnace power to keep you efficient in Pennsylvania’s changing climate.

Maximum
Rebates

Quality equipment and expert installation help you qualify for the highest available incentives.

The Hagner Evaluation & Installation Process

An engineering-based approach to designing the perfect comfort system tailored to your home.

The Initial Discovery Call (15-Min)

The Goal:

A focused, 15-minute conversation to understand your comfort needs, specific goals, and any home performance issues you want solved.

Qualification:

We gather project details to ensure the Daikin FIT is the right match for your home.

Transparent Investment:

We outline our engineer-grade $350 in-home evaluation, which is fully credited back toward your installation if you move forward.

In-Home Evaluation & 3D Thermal Mapping

Room-by-Room Walkthrough:

We capture photos, precise measurements, and evaluate vents and windows. We look at key details like interior materials, exterior materials, window quality, and insulation ratings to accurately map your home’s thermal performance.

ENGINEERING-GRADE ANALYSIS

We combine these details with advanced 3D lidar mapping to perform a rigorous Manual J load calculation giving you complete technical data on your home’s profile — with your $350 investment fully credited back when you move forward with us!

The Proposal

Email & Phone Call:

Using your home's unique data, we build a clean, three-tier inverter proposal with your $350 credit clearly applied. We follow up with a quick phone call to walk you through the system design and answer any questions you may have.

Finalize Options:

We'll review your options over a phone call, comparing comfort, performance, and available financing so you can make the best choice for your budget.

John Hagner

Your Personalized Report

At this point, you have a complete, engineering-backed comfort report tailored specifically to your home. Take all the time you need to review your options, and whenever you are ready to move forward, our team is prepared to transition your custom design into a seamless installation.

Precision Installation

Prepping & Protection

We protect your floors, review final details, and prepare your home for a smooth stress-free installation.

Equipment Removal

Our team safely removes your old equipment while keeping the work area clean and respecting your property.

System Installation

We install your new system using nitrogen-purged brazing, precision pressure testing, and deep vacuum procedures. Most installations take 1-2 days depending on the scope of work.

System Commissioning & Walkthrough

home walkthrough

Performance Checks

We verify refrigerant levels and run comprehensive system diagnosis to confirm efficient performance and consistent comfort throughout your home.

Client Walkthrough

We walk you through your new controls, answer your questions, and provide all warranty information, including your 12-year labor package—along with all final project documentation.

Frequently Asked Questions

The Daikin 3E Program — an initiative focused on setting the standard for the future of HVAC. Through continued testing, engineering, and real-world system design, the program helps advance inverter and heat pump technology, improve installation practices, and shape the next generation of high-performance heating and cooling equipment.

3E stands for Employee Experience Excellence. Daikin’s 3E program ensures their own employees receive an exceptional installation experience in their personal homes. Hagner HVAC was hand-selected as the 3E contractor for PA, NJ, and DE. We are proud of this partnership because Daikin isn’t just trusting us with their technology—they’re trusting us with their own employees’ homes.

Traditional HVAC systems operate like a light switch, blasting at full capacity and then shutting off completely, which drives up energy waste. Modern inverter heat pump technology continuously adjusts its output to match the exact needs of the home. This results in quieter operation, better humidity control, consistent temperatures, and improved energy efficiency.

A Dual Fuel system combines an efficient inverter heat pump with a gas furnace. This allows the heat pump to provide highly efficient heating and cooling for most of the year, while maintaining the gas furnace as a reliable backup heat source when temperatures drop below freezing.

This approach is perfectly suited for Pennsylvania’s changing climate, giving homeowners the precise, quiet comfort of modern inverter technology without giving up the heavy-duty benefits of natural gas heating. We proudly install these advanced dual-fuel and inverter systems for homeowners throughout Royersford, King of Prussia, Wayne, West Chester, and everywhere from Douglassville to Haverford.

Unlocking the full savings potential of high-efficiency inverter technology demands a precise, tailored approach to your home’s unique layout, not just swapping out equipment. Our $350 in-home evaluation includes a rigorous Manual J load calculation and 3D lidar mapping to ensure your system is accurately sized to your home’s actual thermal envelope. This $350 investment is fully credited back toward your installation when you choose to move forward with us.

At Hagner HVAC, our installation standards aren’t just options; they are how we approach every project. We treat your installation as an extension of the manufacturing process.

  • Nitrogen-Purged Brazing: Prevents internal oxidation and scaling to protect compressor life.

  • Deep Evacuation: Using double vacuum pumps to pull deep micron levels, we remove all residual moisture and non-condensables, preventing acid formation and oil breakdown.

  • Meticulous Verification: Every torque spec and procedural detail is verified to ensure your system maintains optimal flow and factory-rated efficiency from day one.

Send your question or call us directly to get free, expert advice from a qualified HVAC professional.