Upgrade to a high-efficiency Elite Series furnace:Â Get 6 Months Free on Go Flex or $500 off when buying outright. Warm home, lower bills, zero stress.
The Navien NCB-190/080H Combi Boiler, installed by 4Most Energy, delivers efficient home heating and endless hot water in one compact unit. Ideal for homes up to 2,500 sq. ft., it’s perfect for in-floor, radiator, or air-handler systems.
The Navien NCB-240/110H Combi Boiler, installed by 4Most Energy, is ideal for homes up to 3,000 sq. ft. with 3 bathrooms. Perfect for zoning systems like in-floor heating and an air handler, it delivers powerful, efficient heating and endless hot water.
The Navien NCB-240/130H, installed by 4Most Energy, delivers 130,000 BTU heating and 199,000 BTU hot water with a 10.4 GPM max flow rate. Ideal for large homes up to 3,500 sq ft (3 bathrooms), it’s perfect for radiant, radiator, or air-handler systems with high hot-water demand.
The Navien NCB-250/150H, installed by 4Most Energy, delivers 150,000 BTU heating and 210,000 BTU hot water with a 10.8 GPM max flow rate. Ideal for large homes or multi-zone systems, it’s built for high-demand hot water and multiple heating applications.
The Navien NFC-250/175H, installed by 4Most Energy, is the most powerful combi boiler in Navien’s lineup, delivering 199,000 BTU heating and 210,000 BTU hot water with a 10.8 GPM max flow rate. Ideal for large homes up to 4,000 sq ft and high-demand heating and hot water.
The Navien NFC-250/200H, installed by 4Most Energy, is the most powerful combi boiler in Navien’s lineup, delivering 199,000 BTU heating and 210,000 BTU hot water with a 10.8 GPM max flow rate. Ideal for large homes + 4,000 sq ft and high-demand heating and hot water.
Upgrade to a high-efficiency Elite Series furnace:Â Get 6 Months Free on Go Flex or $500 off when buying outright. Warm home, lower bills, zero stress.