Weil-mclain 383-700-006 WM97+ 70 Ct Series 2 Boiler

Product Description

The WEIL-MCLAIN 383-700-006 is a wall-mounted condensing hydronic boiler designed for residential and light commercial hot-water heating systems. It operates on natural gas or propane and delivers an IBR-rated output of 57,000 BTU/h from a 70,000 BTU/h input, with a DOE efficiency rating of 95.2 percent. The direct-vent configuration draws combustion air from outside and exhausts flue gases independently of indoor air, making it well-suited for tight, energy-efficient building envelopes. Installation is performed by licensed heating professionals with competency in hydronic system design, gas piping, and low-voltage controls.

The 383-700-006 is intended for forced hot-water hydronic systems where high-efficiency condensing performance and a compact wall-mounted footprint are required. Its dual-fuel capability — natural gas or propane — makes it a flexible option for both utility-served and off-grid residential properties. The direct-vent design satisfies requirements in applications where combustion air separation is mandated by code or building layout. At 35.75 inches in height, the unit fits standard utility and mechanical room installations without requiring floor space.

Key Features

• 95.2 percent efficiency condensing operation reduces fuel consumption compared to standard atmospheric boilers
• Dual-fuel rated for natural gas or propane — no separate model required for LP applications
• Direct-vent system isolates combustion air from living space, improving safety and performance in sealed buildings
• Wall-mounted design conserves floor space in mechanical rooms and utility closets
• 57,000 BTU/h IBR-rated output suitable for whole-home hydronic heating loads in moderate climates
• Hydronic (water-based) system type supports baseboard, radiant floor, and fan-coil distribution configurations

Compatibility

Designed for hydronic hot-water heating systems requiring a high-efficiency wall-mounted condensing boiler with direct-vent capability and dual natural gas or propane fuel compatibility.

Installation Notes

Installation, commissioning, and service must be performed by a licensed heating professional in accordance with manufacturer instructions, applicable local codes, and IFGC requirements. Shut off all gas supply and electrical power to the system before beginning any service work. Gas line connections must be pressure-tested and leak-checked per code before startup. Warranty and technical support are available only through the licensed professional responsible for the installation.