Pacific Blue Mechanical » Rinnai RU199IN Tankless Water Heater
The Rinnai RU199IN Tankless Water Heater is a high-performance indoor condensing tankless water heater designed to deliver continuous hot water for large households and demanding applications. With an impressive 11 GPM flow rate and 199,000 BTU heating capacity, this ENERGY STAR® certified unit provides reliable hot water for multiple bathrooms, kitchens, and appliances running simultaneously.
Built with advanced condensing technology, the RU199IN maximizes energy efficiency while reducing operating costs. Its compact wall-mounted design saves valuable space compared to traditional storage tank water heaters, making it an ideal upgrade for modern homes.
The Rinnai RU199IN Tankless Water Heater provides homeowners with endless hot water on demand without the limitations of a traditional storage tank. Whether you’re running multiple showers, laundry appliances, or dishwashers at the same time, this unit maintains consistent hot water performance.
Its high-efficiency operation can also help reduce monthly energy bills by heating water only when needed. Combined with Rinnai’s durable engineering and advanced safety features, the RU199IN offers long-term reliability and comfort.
| Product Depth | 11.45 in / (290 mm) |
| Product Height | 31.3 in / (795 mm) |
| Product Width | 18.5 in / (470 mm) |
| Product Weight | 64 lb / (29 kg) |
| Gas Type | Natural Gas |
| Installation Type | Indoor |
| Recirculation Capable | Yes |
| Residential ENERGY STAR® | Yes |
| Uniform Energy Factor (UEF) | 0.95 |
| Domestic Hot Water Flow Rate (Maximum) | 11 GPM / (41.6 l/min) |
| Wi-Fi Capable | Yes |
| SCAQMD Approved | Ultra Low NOx |
| Warranty - Standard for Residential | 1 Year on Labor / 5 Years on Parts / 15 Years on Heat Exchanger |
| Warranty - Standard for Commercial | 1 Year on Labor / 5 Years on Parts / 8 Years on Heat Exchanger |
This tankless water heater is ideal for:
Tankless water heaters provide several advantages over conventional tank systems, including:
Professional installation ensures your tankless water heater operates safely, efficiently, and according to manufacturer specifications. Proper gas line sizing, venting, and system setup are essential for maximizing performance and longevity.
Pacific Blue Mechanical provides professional supply, installation, repair, and maintenance services for the Rinnai RU199IN Tankless Water Heater for homeowners and businesses across Metro Vancouver. Whether you need a brand-new tankless water heater installed or require expert repairs for your existing system, our experienced technicians are ready to help.
We can source the RU199IN directly and handle the complete installation process, including gas connections, venting, system calibration, and performance testing to ensure safe and efficient operation. Our team also offers routine maintenance, flushing and descaling services, troubleshooting, component replacement, and emergency repair solutions to keep your hot water system running reliably year-round.
If you’re noticing fluctuating water temperatures, low hot water output, unusual noises, or system error codes, Pacific Blue Mechanical can diagnose and resolve the issue quickly. We are committed to delivering high-quality workmanship, honest recommendations, and long-lasting tankless water heater solutions tailored to your property.
The Rinnai RU199IN Tankless Water Heater can support multiple bathrooms and appliances running at the same time. With an 11 GPM flow rate, it is ideal for large homes with 3–5 bathrooms, depending on climate conditions and water usage patterns.
Yes. The RU199IN uses advanced condensing technology and is ENERGY STAR® certified, helping homeowners reduce energy consumption and lower monthly utility costs compared to traditional tank water heaters.
Yes. Because it heats water on demand rather than storing it in a tank, the RU199IN delivers a continuous supply of hot water as long as the unit is properly sized for the household’s needs.
No. The Rinnai RU199IN Tankless Water Heater is specifically designed for indoor installation. Proper venting and professional installation are required to ensure safe and efficient operation.
With regular maintenance and professional installation, the RU199IN can last 15–20 years or more, which is typically longer than many traditional storage tank water heaters.




