The Laars JX boiler delivers exceptional performance as a space-saving, energy-efficient home heating solution ideal for homeowners seeking comfort, reliability, and long-term value. This innovative residential heating system combines cutting-edge technology with a compact design to provide superior warmth and efficiency for homes of all sizes.

Reliable Energy-Saving Comfort with the Laars Gas-Fired Boiler

Experience reliable, energy-saving home comfort with the Laars Mini-Therm JX gas-fired boiler, backed by an industry-leading 20-year warranty. This wall-mounted gas boiler features an intelligent hybrid heat exchanger that combines finned copper tubing with cast iron wet walls, creating the perfect balance of rapid heat transfer and thermal storage. The result is a heating system that responds quickly to your comfort needs while minimizing energy waste and maximizing efficiency.

Built at the Laars headquarters in Rochester, NH, each Laars mini-therm unit showcases American craftsmanship and engineering excellence. The quality-built products feature innovative controls that are easy to use, offering year-round comfort and savings through the built-in Economy Mode and outdoor reset capabilities. The low-mass heat exchanger design ensures super-quick heating response, delivering warmth precisely when you need it most.

Premium Features for Modern Homes

The Laars gas-fired boiler system includes a low-loss header that protects the heat exchanger from low return water temperatures while maintaining the correct temperature rise across the system. This intelligent design increases both performance and heat exchanger life, making it an ideal choice for direct replacement of traditionally piped cast iron boilers. Available in multiple capacities from 50,000 to 200,000 BTU/hour, the Mini-Therm JX accommodates homes ranging from compact residences to large estates.

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Laars JX Boiler - High-Performance Home Heating Solution