Maximum Efficiency. Maximum Output. Designed for High-Demand Hot Water Applications.

The RTHR 199M Condensing Gas Water Heater is a top-tier, high-efficiency solution engineered to deliver continuous, on-demand hot water for large residential homes and light commercial environments. With a powerful 199,000 BTU output and advanced condensing technology, this unit offers exceptional thermal efficiency, reduced emissions, and long-term reliability—all in a compact, wall-mounted design.

Key Features & Benefits:

• High-Capacity Performance: With a robust 199,000 BTU input, this unit is ideal for high-demand applications such as multi-bathroom homes, restaurants, salons, and small commercial buildings.
• Condensing Technology: Utilizes a secondary heat exchanger to capture and reuse heat from exhaust gases, significantly improving energy efficiency and reducing fuel consumption.
• Ultra-High Efficiency: Achieves thermal efficiency ratings up to 96%, helping lower utility bills and reduce environmental impact.
• Space-Saving Design: Compact, wall-mounted configuration frees up valuable floor space and allows for flexible installation in tight mechanical rooms or utility closets.
• Durable Stainless Steel Heat Exchanger: Corrosion-resistant and built to withstand the rigors of daily use, even in hard water conditions.
• Low NOx Emissions: Environmentally responsible design meets or exceeds low NOx emission standards, making it suitable for use in regulated areas.
• Smart Digital Controls: Intuitive interface provides precise temperature control, system diagnostics, and maintenance alerts for easy operation and troubleshooting.
• Flexible Venting Options: Compatible with 2" or 3" PVC, CPVC, or stainless steel venting for both direct and power vent installations.

Ideal Applications:

• Large residential homes with multiple bathrooms
• Multi-family dwellings
• Light commercial buildings (restaurants, offices, salons)
• High-demand point-of-use installations
• Anywhere continuous, reliable hot water is essential

Technical Specifications:

• BTU Input: 199,000
• Fuel Type: Natural Gas (convertible to LP with optional kit)
• Thermal Efficiency: Up to 96%
• Ignition System: Electronic ignition
• Mounting Type: Wall-mounted
• Water Connections: ¾" NPT
• Venting: 2" or 3" PVC/CPVC/stainless steel
• Dimensions: Compact footprint for space-constrained installations