Key Points
- HVAC efficiency determines how much power your system requires to create your preferred ambiance.
- Different regions and housing structures will have distinct needs and unique accommodations to take into account.
- IWAE has a sitewide 15% off sale through February 28, 2026 that makes it more affordable to upgrade your HVAC system.
Shopping for an HVAC solution isn’t as simple as deciding what to make for dinner or where to plan your summer vacation. Your heating and cooling system is supposed to last for years, decades even, which makes it an important choice. It is in your best interest to choose a solution that saves you the most money over time, so we recommend prioritizing energy-efficient systems.. Heating and cooling solutions aren’t one-size-fits-all, but efficient HVAC systems save energy no matter what type of setup your home needs.
If you’re ready to ensure consistent comfort throughout your home, there’s no better time than the present to take the leap. IWAE’s having a sitewide 15% off sale that makes it easier to bring home a great climate control solution for your living space. Regardless of your situation, efficient heating and cooling is within your reach. In case you’re unsure where to start, here are some of our favorites that we suggest to customers in a variety of scenarios:
- Whole Home Heating – Electric
- Whole Home Heating – Gas
- Whole Mobile Home Heating
- Zoned Heating
- Best HVAC Bang for Buck
Most Energy Efficient Solution for Whole Home Heating – Electric
Looking for a top-tier central heating and cooling system that knocks efficiency out of the park? The MrCool 2nd Gen Hyper Heat Split System is exactly what you need. Whether you live in a region with harsh winters, brutal summers, or both, the Hyper Heat system from MrCool won’t fall short. Earning Energy Star certification for efficient cold climate operation on top of efficiency ratings up to 18.3 SEER2, 11.7 EER2, and 10.2 HSPF2-4, the Hyper Heat lineup from MrCool proves its impressive performance.
Able to provide up to 100% heating output in temperatures as low as -5 degrees Fahrenheit and 100% cooling output in conditions up to 109 degrees Fahrenheit, you’ll thrive in any season with the MrCool Hyper Heat system. Multi-position installation offers you a range of setup options, ensuring equally effective performance in upflow, downflow, and left or right horizontal orientations. Gold fin protections on the condenser coils fight off rust and corrosion over the years, making the MrCool Hyper Heat lineup a great choice for corrosive environments along the coast or near industrial zones. For a full list of features and benefits, check out this breakdown in the MrCool Hyper Heat Customer Brochure.
Most Energy Efficient Solution for Whole Home Heating – Gas Package Units
For homes with layouts that benefit from having a single dedicated cooling and heating unit, the Goodman Gas & Electric Package Unit is the perfect fit. Earning ratings of 15.2 SEER2, 11.5 EER2, and 81% AFUE, you’ll find top-tier climate control results in every season. The addition of a variable-speed ECM indoor blower motor and two-stage scroll compressor work to maximize the efficiency of the system, using as little energy as possible to accomplish your settings. This Goodman package unit is designed with durability in mind, boasting conformity to the 2020 Florida Building Code unit integrity guidelines to withstand hurricane-force winds when secured with an anchor bracket kit. Meeting the cabinet air leakage requirements outlined in ASHRAE standard 193 with a fully insulated cabinet, this heating and cooling solution from Goodman works hard to minimize energy loss during normal use to give you the results you want quickly and efficiently.
Most Energy Efficient Solution for Mobile Homes
HVAC systems in mobile homes and manufactured housing are built a little differently than central systems made for traditional residential buildings. Package units like the Revolv Heat Pump Package Unit are a perfect solution for the limited space as they fit the compressor, air handler, condenser, and evaporator coil all into a single housing while offering 0-inch clearance on the duct side for installation in tight areas. Mobile home HVAC units demand a higher degree of efficiency due to the space restrictions, and the use of R454B in this Revolv package unit gives you sustainable and efficient functionality that earns ratings of 13.4 SEER2 and 10.6 EER2. Thanks to the durability of a galvanized steel cabinet that passes a 950-hour salt-spray test, you’ll enjoy a consistent, long-lasting solution for mobile home climate control.
Another great option for mobile homes without the requirement of ductwork is zoned HVAC.
Most Energy Efficient Zoned Heating Solution
Not every building can take advantage of a central HVAC system and the dedicated ductwork they require, and homes that do use central systems don’t always provide consistent airflow in every room. For single-zone applications like adding additional temperature regulation to a studio space, workshop, garage, or bedroom, a MrCool 5th Gen DIY Heat Pump Split System is the everything you need and more. Supported by an HSPF2-5 rating of 8.6, EER2 rating of 14, a SEER2 rating 23.6, and Energy Star certification, you won’t have to worry about how efficiently your system is performing: you’ll know it’s doing an incredible job.
The MrCool DIY system is all about putting the power of ambiance in your hands. DIY means the setup process is completely do-it-yourself: no shelling out for costly professionals who leave you waiting around all day. Quick connect line sets eliminate the need for vacuuming during installation, making it easy to connect refrigerant to the indoor and outdoor units. Quality of life inclusions like the louver position memory and auto restart automatically restore power after an outage, ensuring airflow resumes the previous system cycle. For more information, check out the MrCool 5th Gen DIY Split System customer brochure.
Best Efficiency for Your Buck
All of these different systems fit into different use cases, but the majority of us are simply looking for a new HVAC system for our homes that runs efficiently without breaking the bank. Bang for buck, homes that use a central system won’t find a better deal than the IWAE Central Heat Pump Split System. Between the use of R454B refrigerant and efficiency ratings of 7.5 HSPF2 and 14.3 SEER2, this system provides powerful and effective temperature regulation.
The IWAE Central Heat Pump Condenser in this split system bundle takes advantage of a specialized time-delay defrost technology that protects the hardware during winter. The cabinet sports a baked enamel finish, combined with gold fin protections to fight off inclement weather for durable, long-term performance. Able to operate in heating mode in temperatures between 14 and 90 degrees Fahrenheit or cooling mode from 54 to 126 degrees Fahrenheit, most climates are a breeze for this IWAE heat pump to handle.
Similarly, the IWAE Central Air Handler in this pairing boasts a variable-speed blower motor that uses as little energy as is necessary to maintain your preferred temperatures. The versatile design supports upflow, downflow, and left or right horizontal applications, guaranteeing a perfect fit for your home no matter where the unit is set up. With foil-faced insulation that lines the interior of the casing to reduce moisture buildup, this IWAE air handler is up for the task.
Breakdown of 2026's Energy Efficient Whole Home HVAC Solutions
Level Up Your Efficiency This Year with IWAE
Choosing an efficient HVAC system is a step in the right direction for not only your home’s climate control, but for the environment. Sustainability is why refrigerant regulations changed in 2025 to the new standards of R32 and R454B. Some systems push efficiency to greater heights, with geothermal systems skyrocketing efficiency ratings like EER into the 70s!
Since you can use checkout code “SAVE15” to take advantage of IWAE’s current sitewide 15% off sale through February 28, 2026, there’s no better time to invest in efficient HVAC technology. If you’re unsure of where to begin, reach out to our customer service experts. The team at IWAE is here to help you find the perfect, efficient heating and cooling system for your home.
