The Williams 1056512.9 Vent-Free Natural Gas Room Heater is a 10,000 BTU blue flame heater engineered for high-efficiency supplemental heating in interior spaces. As a direct replacement for the discontinued Williams 1096513.9, this unit maintains the same footprint and mounting requirements for a seamless retrofit. This natural gas wall heater operates without the need for external venting, utilizing a 99.9% efficient combustion process that discharges heat directly into the room. It features a manual control valve and a piezo igniter for reliable startup without electrical requirements, making it a critical solution for emergency backup heating during power outages. Built with an Oxygen Depletion Sensor (ODS), the unit automatically shuts down if oxygen levels drop below safe thresholds. This unvented gas heater is designed for durability with a powder-coated finish and a heavy-gauge steel cabinet, ensuring long-term performance in residential or light commercial applications where ventless gas heating is required. High-Efficiency Output: Delivers 10,000 BTUs of steady blue flame convection heat to circulate warm air through larger areas. Direct Replacement: Specifically engineered to replace Williams 1096513.9 models without requiring piping modifications. No Electricity Required: The piezo ignition system ensures the unit functions independently of the local power grid. Integrated ODS Pilot: Mandatory safety Oxygen Depletion Sensor provides automatic shut-off for interior safety. Natural Gas Configuration: Factory-set for low-pressure natural gas lines, optimizing combustion for clean operation. Common Questions Can I convert the Williams 1056512.9 to Liquid Propane (LP)? No. This unit is factory-configured specifically for natural gas. Field conversion of vent-free products is not permitted and poses significant safety risks; you must purchase the specific LP version for propane applications. What are the clearance requirements for this vent-free heater? Standard installations require 36 inches of clearance from the top, 10 inches from the sides, and 2 inches from the floor to ensure proper airflow and heat dissipation. Will this unit work during a power outage? Yes, the Williams 1056512.9 uses a mechanical gas valve and a manual spark igniter, allowing it to provide reliable heat without electricity. This item is not eligible for free shipping. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
