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Rinnai RE160eP Non-Condensing Propane Tankless Water Heater Review: Specs, Pros and Cons

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This rinnai re160ep non condensing propane tankless water heater review focuses on the outdoor unit that delivers up to 6.6 GPM. The compact design measures 24.6 by 14.1 by 10.8 inches. It runs on propane fuel and uses non-condensing venting. You get continuous hot water for multiple fixtures at once. The unit weighs 49.2 pounds and features a silver finish. An LED screen shows error codes and service reminders. This model is built for outdoor installation only. It fits small spaces while providing reliable performance. The internal layout is designed for easier serviceability. You should check your local water temperature before buying.

What stands out

  • 6.6 GPM flow rate supports up to five fixtures simultaneously
  • Compact outdoor dimensions of 24.6 x 14.1 x 10.8 inches
  • Non-condensing propane fuel type with LED error code display
  • 15-year limited warranty on the heat exchanger

Who it fits

Good fit for

You should choose this unit if you need an outdoor propane heater for a home with moderate hot water demand. The 6.6 GPM capacity handles showers, sinks, and appliances at the same time. Its small footprint fits tight outdoor spaces. The non-condensing design simplifies venting for outdoor setups. If you live in a region with mild groundwater temperatures, this heater will perform well. Register within 90 days to secure the full labor warranty.

Who should skip it

Skip this model if you need an indoor installation. The data specifies outdoor use only, so it is not suitable for basements or garages. You also should avoid this if you require natural gas fuel, as this unit runs on propane. If you need higher flow rates, such as 8.5 or 9.8 GPM, this 6.6 GPM unit may fall short. You must hire a professional for installation, so factor that into your planning. WiFi control is not included and requires a separate module.

Verdict: This propane unit offers reliable outdoor performance with a strong heat exchanger warranty. It suits homes needing moderate flow rates in mild climates.

Key specs for this unit

Flow Rate: 6.6 GPM

This unit delivers up to 6.6 gallons of hot water per minute. That volume supports simultaneous use in multiple bathrooms or kitchens. You can run showers and sinks together without a significant drop in temperature. Compare this to lower-flow models if you have a large household. Higher flow rates suit homes with greater demand for hot water at once.

Fuel Type: Propane

This heater runs on propane gas rather than natural gas. You need a propane supply line and tank connection for operation. This option is ideal for rural homes without natural gas infrastructure. Propane units often offer consistent performance regardless of local gas pressure. Check your existing fuel source before purchasing to ensure compatibility.

Installation Location: Outdoor

This model is designed for exterior mounting only. It requires a weatherproof installation site. Indoor installation is not permitted for this specific non-condensing unit. You must place it on a stable surface outside your home. This frees up indoor space but exposes the unit to environmental elements. Ensure the location meets local building codes for outdoor gas appliances.

Dimensions: 24.6 x 14.1 x 10.8 in

The unit measures 24.6 inches high, 14.1 inches wide, and 10.8 inches deep. This compact footprint allows mounting on exterior walls without taking up much room. Compare these measurements to your available space. The vertical height fits standard mounting heights. The shallow depth helps it sit flush against walls. Verify your installation area has sufficient clearance for maintenance access.

Design and Build Quality

The listing describes a compact, suitcase-sized unit that prioritizes efficient space usage. According to the listing, the exterior finish is silver. This color choice helps the outdoor appliance blend into typical exterior wall environments without drawing unnecessary attention. The physical dimensions measure 24.6 inches in height, 14.1 inches in width, and 10.8 inches in length. This small footprint allows for flexible mounting options on patios, decks, or garage walls where space is limited. The unit weighs 49.2 pounds. This moderate weight ensures stability during installation while remaining manageable for qualified technicians to handle safely.

Internally, the design emphasizes serviceability. The listing notes a cleaner internal layout compared to previous models. This structural choice speeds up installation and makes future maintenance easier for professionals. You benefit from reduced downtime when repairs are needed. An LED screen is integrated into the unit’s interface. This display provides service reminders and error codes directly on the device. You can quickly diagnose issues without needing external tools. The non-condensing venting design dictates where you can place the unit. It is built specifically for outdoor installation. This construction protects the internal components from weather exposure while allowing efficient exhaust of combustion gases. The durable build supports its role as a reliable outdoor water source.

Installation And Daily Operation Guide

Professional installation is strongly recommended for this unit. You should locate a qualified technician through the manufacturer’s website to ensure safe and correct setup. The outdoor placement requires proper venting for the non-condensing design. This configuration allows the unit to exhaust combustion gases efficiently without requiring complex condensate management.

The unit measures 24.6 by 14.1 by 10.8 inches. Its compact footprint fits easily against exterior walls. The silver finish helps it blend into typical outdoor environments. Weighing 49.2 pounds, the unit is manageable for mounting but requires secure wall support.

Daily use begins with turning on a hot water fixture. The system activates only when needed, conserving energy by not maintaining a stored tank of hot water. The LED screen displays service reminders and error codes to help you monitor performance. You do not need to buy additional accessories for basic operation, though the Controlr module for WiFi connectivity is available separately for remote management.

This propane model delivers up to 6.6 gallons per minute. This flow rate supports simultaneous use in multiple fixtures. You can run showers and sinks together without significant temperature drops. The unit is designed for residential use. It includes a 15-year limited warranty on the heat exchanger. Registration within 90 days is required to maintain full labor coverage. Check the ground water temperature map to ensure optimal performance for your region.

Before you buy this unit

You need to verify your regional groundwater temperatures using the manufacturer’s map. This outdoor propane heater performs best in specific climates where input water is not too cold. You must also check if you want WiFi control. The Controlr module is not included, so you buy that separately for remote monitoring. The unit fits in tight spaces, measuring just over two feet tall. It shares the same chassis as indoor and natural gas variants, offering flexibility if your fuel source changes. Keep the area clear for service access. The LED screen shows error codes and reminders, helping you track maintenance. You should register the product within ninety days to keep the full labor warranty. This model sits alongside higher-flow indoor units. Choose this only if you need outdoor durability and propane efficiency.

Check before you buy

  • Check your local groundwater temperature map for compatibility.
  • Confirm you have propane supply lines ready.
  • Buy the Controlr module for WiFi access.
  • Ensure outdoor venting space meets code.
  • Register within 90 days for full labor warranty.

The product at a glance

Rinnai 6.1 GPM Outdoor Propane Water Heater

Best for: outdoor propane homes needing high flow

Fuel Type
Propane
Flow Rate
6.1 GPM
BTU
160k BTU
Installation Location
Outdoor
Dimensions
24.6 x 14.1 x 10.8 in
Venting Type
Non-Condensing

View on Amazon: Rinnai 6.1 GPM Outdoor Propane Water Heater Affiliate link

The Rinnai RE160eP is a non-condensing propane tankless water heater designed for outdoor installation. It delivers a flow rate of 6.6 GPM, allowing you to run up to six fixtures simultaneously. Its compact dimensions of 24.6 x 14.1 x 10.8 inches fit small spaces. The unit includes a 15-year heat exchanger warranty and an LED display for error codes. It suits outdoor applications where propane fuel is available.

Pros

  • 6.6 GPM flow rate for multiple fixtures
  • Compact 24.6-inch height fits tight spaces
  • 15-year heat exchanger warranty
  • LED screen shows error codes

Cons

  • Outdoor installation only
  • WiFi control module sold separately
  • Labor warranty drops to 1 year if not registered in 90 days

Good fit if

  • You need a propane heater for outdoor use
  • You require high flow for multiple bathrooms
  • You want a compact unit for tight spaces

Skip if

  • You need indoor installation
  • You use natural gas instead of propane
  • You want built-in WiFi without extra parts

Verdict: Rinnai RE160eP Propane Outdoor Heater provides reliable hot water for outdoor setups with a strong 6.6 GPM output. It fits buyers who need a durable propane unit in a small footprint.

Specifications side by side

Spec Rinnai 6.1 GPM Outdoor Propane Water Heater
Fuel Type Propane
Flow Rate 6.1 GPM
BTU 160k BTU
Installation Location Outdoor
Dimensions 24.6 x 14.1 x 10.8 in
Venting Type Non-Condensing
Weight 49.2 pounds
Size 6.6 GPM
Color Silver
Model REU-VE2125WD-US-P

Frequently asked questions

Can the Rinnai RE160eP be installed indoors?

No, this unit is designed strictly for outdoor use. The listing specifies an outdoor installation location. Indoor installation requires a different model with appropriate venting and safety features for enclosed spaces. Using this specific propane heater inside could violate building codes and safety standards. Always follow the manufacturer’s placement guidelines to ensure proper operation and safety.

What size venting does this heater require?

This model uses non-condensing venting technology. Non-condensing units typically require stainless steel or aluminum vent pipes that can handle higher exhaust temperatures. The specific vent diameter and length requirements depend on your local code and installation layout. Check the manual for exact venting specifications to ensure efficient combustion and safe removal of exhaust gases.

Is this water heater suitable for a large family?

With a flow rate of 6.6 GPM, this unit supports multiple simultaneous uses. It can handle two showers and a kitchen sink running at the same time in many climates. The high output makes it a strong candidate for larger households. However, performance depends on your incoming water temperature. Verify your regional groundwater specs to ensure it meets your peak demand.

How heavy is the Rinnai RE160eP?

The unit weighs 49.2 pounds. This weight is manageable for two people during installation but requires a sturdy mounting bracket. Ensure your exterior wall can support this load. The compact dimensions of 24.6 by 14.1 by 10.8 inches allow it to fit in tight outdoor spaces. Plan your installation site carefully to accommodate both the weight and the physical footprint.

Does this model come with a digital display?

The provided data does not mention a built-in digital display on the unit itself. The listing focuses on the physical dimensions and fuel type. Some Rinnai models include remote temperature controllers or WiFi modules for monitoring. You may need to purchase a separate control module for digital feedback. Check the specific accessories list for available add-ons.

What is the color of this outdoor heater?

The exterior finish is described as silver. This color helps the unit blend into typical exterior wall environments. It is a practical choice for outdoor appliances where visibility is less important than durability. The silver finish is designed to withstand outdoor conditions. This aesthetic choice ensures the heater does not draw unnecessary attention on your home’s exterior.

Can I use natural gas with this unit?

No, this specific model runs on propane fuel. It is not designed for natural gas operation. Using the wrong fuel type can damage the unit and create safety hazards. Ensure your propane supply line is correctly sized and connected. If you need a natural gas version, you must select a different model designed for that fuel source.

What is the warranty on this heater?

The provided product data does not include warranty information. Warranty terms vary by region and retailer. You should check the manufacturer’s official documentation or your purchase receipt for specific coverage details. Rinnai typically offers limited warranties on heat exchangers and parts. Contact the seller or manufacturer directly for the most accurate and current warranty terms.

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