Mainline - Reliability is in the Air
Why Choose Mainline?
Mainline, offers proven technology in each of their high-performing products, along with comprehensive warranties and excellent support. They take pride in putting people and results above all else. Their residential and commercial HVAC products meet a wide range of market needs. Mainlines goal is to provide high-quality heating and cooling systems that keep you in total control of your home’s comfort. So, relax and enjoy that just right feeling with Mainline. Mainline is your connection to all the right products to keep everyone comfortable. Whether it’s easy-service features or a variety of capabilities, you can count on MAINLINE® to provide a reliable comfort system for any customer.
Advanced Technology
7-segment LEDs enhance diagnostics for better service and fewer nuisance calls. QR codes offer instant system data for accurate service. All gas products feature a reliable and long-lasting spark ignition system.
Reliable Parts
Rust-resistant screws tested for 1500 hours in salt spray. Composite Base Pan reduces noise, prevents corrosion, and minimizes fasteners. Ergonomic design with no sharp edges for easy handling.
Quality Manufactoring
Hemmed edges for a smooth, sharp-free appearance. Fully ISO 9000 compliant. By 2025, Rheem® aims to cut greenhouse gas emissions by 50% and achieve zero waste to landfill in global manufacturing.
Superior Quality
Industry-leading components with 100% run testing on all products. Reduced noise in gas furnaces with sealed doors on 80s & 90s models, ensuring less than 2% leakage.
Excellent Warranty
10 year parts warranty on Mainline Elite Products (Product registration required). See warranty document for full details.
Nationwide Service
Mainline HVAC products can be purchased at many convenient locations.