
Finding a new furnace for an older home can be a challenge. Many historic or long-standing houses have unique layouts, outdated ductwork, or insulation issues that reduce their heating efficiency. Choosing the wrong system can result in higher energy bills and uneven warmth throughout your home.
Fortunately, with the right guidance, you can select a furnace that keeps your space cozy while improving overall efficiency. In this blog, we’ll share seven tips for finding a new furnace for your older home. Whether you’re upgrading for comfort, safety, or savings, these insights will help you make an informed and cost-effective decision.
1. Look for the Most Energy-Efficient Option
When searching for a new furnace for your older home, one of the best steps you can take is to opt for the most energy-efficient option available on the market. When searching for a new system for your home, aim for a device with an Annual Fuel Utilization Efficiency (AFUE) rating of 90% or higher.
This higher rating can help you achieve more consistent indoor temperatures throughout the winter and consistently lower your energy bills, especially when paired with upgraded windows and doors across your property. It may also help you improve the air quality in your home, which is beneficial for individuals with respiratory problems.
2. Ensure Your Existing Ductwork Can Support Your New Furnace
While you might want a new furnace for your older home, you need to ensure your existing ductwork is equipped to handle the new system. Whether you’ve built an add-on or have changed the layout of the room, not all ducts are designed to work with every furnace, and disregarding your existing ducts can have devastating consequences.

Consult with your trusted HVAC technician to determine if your chosen furnace is compatible with your existing ductwork. If they aren’t compatible, you may need to invest in installing new ducts. You may also want to consider investing in ductless mini-splits, which provide ample heating without the need for ductwork adjustments.
3. Consider Zoned Systems
When upgrading the furnace in your home, you may want to consider talking to your HVAC technician about investing in a zoned system. Older homes may be more prone to hot and cold spots than newer homes, which often have more comprehensive insulation. Zoning allows you to target these problem areas directly.
Zoned systems can also help you avoid excessive wear on the system itself. Whether you invest in multiple systems to better suit your home’s needs or incorporate mini-splits into your basement, sunroom, or home additions, these zoned systems are a great choice for keeping your older home comfortable without overworking your new system.
4. Invest in an Updated Thermostat
In addition to searching for a new furnace for your older home, you may also want to consider incorporating an updated or smart thermostat into this system. While your furnace plays a major role in the energy efficiency of your home, your thermostat can also significantly impact your everyday energy consumption and monthly bills.

When pairing an upgraded smart thermostat with your new furnace, you can create a heating schedule that ensures you don’t use too much energy when you’re away. It learns your heating habits and everyday schedule, making adjustments to reduce your overall energy consumption and improve your home’s energy efficiency.
5. Double-Check Local Preservation Requirements
Although you may want to upgrade the heater in your older home, this may be more complex if you live in a historic home. Before purchasing a new furnace, double-check your local preservation requirements. They may have size and control requirements when upgrading your home’s HVAC system.
If you’re unsure about whether a more advanced furnace is right for your older home, it is best to contact your HVAC team. With their expertise and training, you can trust that you’re getting the best furnace for your home without having to worry about failing to meet the standards set out by your local ordinances.
6. Talk to the Pros About Advanced Air Filters and Purifiers
When upgrading your home with a new furnace, there are a few additional upgrades you may want to incorporate into the system. If you or a loved one experiences severe allergies and regular respiratory irritation, you may want to talk to your trusted HVAC team about incorporating advanced air filters, humidifiers, and purification systems into the design.
These more advanced purification, filtration, and humidifying systems can help you avoid the irritation that comes with seasonal weather changes, including increasingly dry air. When installed with an upgraded furnace, you can trust that you’re not just boosting warmth in the space, but also improving everyday comfort.

7. Prioritize Professional Installation
While investing in a new furnace is incredibly important, you should also never underestimate how beneficial professional support can be. As you begin your search for an upgraded furnace, you may be wary of the system’s price and consider installing it yourself instead of hiring a reliable professional for the installation.
Many newer systems require professional installation and maintenance; improper installation may void the system’s warranty. Professionals can also determine whether you’ve invested in the right system for your home size and heating needs. With their support, you can trust that your furnace will function optimally for years to come.
Let R&D Heating & Air Help You Find Your New Furnace
If you’re looking for a new furnace for your Northern Utah home, turn to our team at R&D Heating & Air for the expert support you deserve. With decades of experience helping homeowners find the perfect new system for their home, we’re confident that we can do the same for you. Whether you’re prioritizing energy efficiency, improving heating for new add-ons, or staying within your intended budget, we’re here to provide expert support.
When you’re ready to make this investment in your home, don’t hesitate to contact us for support.

