Welcome to the South Mini Splits collection for Furnace. We feature high-efficiency systems from industry leaders like Cooper & Hunter, OLMO, MRCOOL, and Bravo.
These powerful, conventional, and dependable units are the ideal solution for whole-home heating in colder climates, integration with existing ducted central AC systems, or as replacements for aging equipment.
💡Why Choose South Mini Splits for Your Furnace?
✅ Wholesale Pricing: Competitive rates on top-tier HVAC equipment.
✅ USA-Based Support: Expert help from sizing to post-install troubleshooting.
✅ Free Shipping Over $300: Get your complete system delivered fast.
What are Gas and Electric Furnaces?
A furnace is a central component of an HVAC system that heats air and distributes it through a building's ductwork. The two main types we offer are:
- Gas Furnaces: These use natural gas or propane to heat a heat exchanger, and the resulting warm air is circulated by a blower. They are generally highly efficient and the most cost-effective option for regions with very cold winters. Efficiency is measured by the Annual Fuel Utilization Efficiency (AFUE) rating, with higher percentages indicating less wasted fuel.
- Electric Furnaces: These use electric heating elements to warm the air. They are often more affordable to install and are typically chosen in areas where natural gas is not available or where the winter climate is mild to moderate.
Critical Furnace Sizing and Efficiency (Pro Insight)
Selecting the correctly sized furnace is crucial for comfort and cost savings.
- Preventing Short Cycling/Long Cycling: A furnace that is too large will short-cycle (turn on and off constantly), leading to inefficient operation and uneven heating. A furnace that is too small will run constantly (long-cycle) and may not be able to maintain the set temperature on the coldest days.
- Sizing is Complex: Unlike the simple square-footage rule for mini splits, furnace sizing requires a professional Manual J Load Calculation that factors in: climate zone, insulation, window types, and air infiltration.
Integration with AC: Ensure the furnace blower (air handler) is properly matched with the existing or planned central air conditioner (AC condenser). An undersized blower will hurt your cooling efficiency in the summer.
FAQs/Frequently Asked Questions
Q: What is AFUE, and why does it matter?
A: AFUE (Annual Fuel Utilization Efficiency) measures how efficiently a gas furnace converts fuel to heat. A rating of 90% AFUE means 90 cents of every fuel dollar goes toward heating, while the other 10 cents is wasted. We recommend looking for systems that are Energy Star rated for the best long-term savings.
Q: Should I choose a gas or an electric furnace?
A: This depends on three factors: Fuel Cost, Climate, and Availability. Gas is usually preferred in very cold climates due to lower operating costs, provided natural gas is readily accessible. Electric furnaces are often simpler and cheaper to install in areas with mild winters.
Q: Can a new furnace work with my old central AC system?
A:Yes. Most new furnaces can be connected to older, functional central air conditioners. However, for peak efficiency, we always recommend pairing your new furnace with a new, compatible outdoor AC unit to ensure the components are perfectly matched for optimal performance.
Q: What is the most important maintenance I need to do for my furnace?
A: The single most important maintenance task is regularly replacing or cleaning your air filter. A clogged filter restricts airflow, forcing the furnace to work harder, which raises energy bills and can lead to system overheating or damage. Check your filter every 30-90 days, depending on usage and filter type.
Q: What are the benefits of a "Variable-Speed" Blower?
A: Furnaces with variable-speed blowers offer superior comfort and efficiency. Instead of running at full blast, they can slowly ramp up and down to gently circulate air. This provides quieter operation, improves humidity control, and ensures more consistent temperatures throughout your home, eliminating hot and cold spots.