Rheem RTGH-90DVLN-3 Tankless Water Heater Review

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With the Rheem RTGH-90DVLN-3 tankless water heater, you'll enjoy continuous hot water thanks to its 0.4 to 9 GPM flow range and hot start programming which eliminates cold bursts. Its high-efficiency condensing design can cut electric bills by up to 75%, while electronic controls optimize energy use. Accommodating multiple fixtures with an adjustable temperature range from 100°F to 140°F, it features a sturdy 180,000 BTU output for reliable performance. Compact enough to fit tight spaces and easy to install, it handles simultaneous demands with minimal water pressure disruption. Explore further for an in-depth understanding of its capabilities.

Key Takeaways

  • The Rheem RTGH-90DVLN-3 offers a high flow rate of up to 9 GPM, suitable for multiple fixtures.
  • It provides a wide temperature range from 100°F to 140°F, with a default setting of 120°F.
  • The model features an electric ignition system for rapid and reliable startup.
  • Its high-efficiency condensing design can reduce electric bills by up to 75%.
  • The compact, wall-mountable design is ideal for small spaces and easy installation.

Continuous Hot Water Delivery

Rheem's RTGH-90DVLN-3 tankless water heater excels in providing continuous hot water delivery, guaranteeing you never have to experience the discomfort of a cold shower again. Its hot water reliability is attributed to an impressive flow rate range of 0.4 to 9 GPM, accommodating varying demands across your household. The Hot Start Programming feature eliminates cold water bursts during consecutive uses, enhancing continuous flow performance. Whether you're running multiple showers or operating a dishwasher simultaneously, this unit maintains consistent water temperature between 100°F to 140°F (default at 120°F). Even under heavy load scenarios, it sustains hot water delivery efficiently. Its electric ignition system further guarantees a rapid and reliable start-up, making it an adept solution for your continuous hot water needs.

Efficient Energy Cost Savings

For those seeking substantial energy cost savings, the RTGH-90DVLN-3 tankless water heater stands out as an efficient choice. Its energy efficiency is remarkable, utilizing a high-efficiency condensing design that considerably reduces energy consumption. In cost analysis, users have reported up to a 75% reduction in electric bills, outweighing the minor increase in natural gas expenses. This model's precise electronic controls optimize energy usage, ensuring only the necessary amount of gas is consumed to heat water. The combination of 180,000 BTU power and a flow rate of 0.4 – 9 GPM enables efficient operation, even under multiple simultaneous demands. By effectively managing energy resources, the RTGH-90DVLN-3 offers a cost-effective solution, making it an intelligent investment for long-term savings.

Detailed Features

When you're evaluating the RTGH-90DVLN-3, you'll find its detailed features are engineered for performance and convenience. This Rheem model includes advanced technologies that prioritize both efficiency and space-saving. The heat exchanger protection is bolstered by an Overheat Film Wrap, ensuring durability and longevity even under demanding usage. Its compact design allows for minimal installation clearance, making it ideal for small spaces without compromising on capacity or performance.

Key features include:

  • Flow Rate: Up to 9 GPM, accommodating multiple fixtures.
  • Temperature Range: Adjustable from 100 to 140°F.
  • Installation Flexibility: Wall mountable, fits tight spaces.
  • Ignition System: Electric ignition for reliable startup.
  • BTU Output: 180,000 BTU, offering powerful heating power.

These specifications underscore a commitment to high performance and user convenience.

Water Pressure Under Heavy Load

Many users find that the Rheem RTGH-90DVLN-3 performs admirably under typical household demands, but it's important to be aware of potential water pressure fluctuations when multiple fixtures are in use simultaneously. This tankless water heater, with its impressive 9 GPM flow rate, can generally accommodate simultaneous showers and dishwashing. However, load management becomes vital when additional fixtures, like multiple sinks, are activated. Users may experience a pressure drop under these heavy load conditions. Efficient load management can mitigate this issue, allowing you to prioritize water usage to maintain consistent pressure. While some fluctuations might occur, the unit's design generally guarantees minimal disruption. Understanding your household's peak demands will help you optimize performance and avoid noticeable pressure drops.

Compact and Space-Saving Design

Addressing the potential for water pressure fluctuations under heavy load, the Rheem RTGH-90DVLN-3 tankless water heater's compact and space-saving design stands out as a key advantage for homeowners. With a width of just 17-11/16 inches, this unit offers versatile installation ease, making it ideal for tight spaces. Its wall mount capability provides flexible mounting options, allowing you to install it in a variety of locations without sacrificing valuable floor space. The design facilitates superior airflow and maintenance access, ensuring efficient operation.

  • Compact size: Fits in small, constrained areas.
  • Installation ease: Clear instructions simplify the process.
  • Mounting options: Wall-mounted to save space.
  • Efficient layout: Allows for proper ventilation.
  • Versatility: Suitable for diverse home environments.

Frequently Asked Questions

What Is the Warranty Coverage for the Rheem Rtgh-90dvln-3?

Coincidentally, you're considering the warranty terms for a product with extended coverage. You'll find it includes a 1-year labor guarantee, a 15-year heat exchanger warranty, and a 5-year parts warranty, ensuring long-term protection.

How Long Is the Amazon Return Period for This Water Heater?

You're eligible for a return policy under Amazon's Voluntary 30-Day Return Guarantee. If dissatisfied, initiate Amazon refunds within this period. Make sure you're aware of potential restocking fees or return shipping costs when analyzing your options.

Is Professional Installation Required for This Model?

You don't need professional installation, but it's recommended. DIY feasibility depends on your plumbing and gas skills. Be aware of installation costs, as improper setup might void warranties or cause inefficiencies. Analyze your technical abilities before proceeding.

Are There Any Specific Maintenance Requirements for the Unit?

Descale your unit every 12 months to maintain efficiency, potentially reducing electric bills by up to 75%. Regularly clean the water filter to prevent clogs. These maintenance tasks guarantee peak performance and longevity for your heater.

What Voltage Is Required for the Electric Ignition?

You need 120 volts for the electric ignition's safety and efficiency. Guarantee proper voltage supply to maintain the ignition mechanism's performance. This voltage supports ideal operation, preventing issues like ignition failure or compromised electric safety.