Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Rheem RTGH-95DVLP-2 Tankless Liquid Propane Water Heater. Please read this manual thoroughly before attempting any procedures. Retain this manual for future reference.
Key Features
- Exclusive Water Savings technology, conserving up to 1,100 gallons per year.
- 199,900 BTU heat output (gas consumed per hour).
- Exclusive Hot Start Programming minimizes cold water bursts by maintaining a ready-fire state.
- Recirculation pump kit ready for enhanced hot water delivery.
- Designed for indoor use only.
Important Safety Information
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.
This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Always ensure proper ventilation and follow all local codes and regulations during installation and operation.
Product Overview
Familiarize yourself with the external features and dimensions of your Rheem RTGH-95DVLP-2 Tankless Water Heater.

Image: Front view of the Rheem RTGH-95DVLP-2 Tankless Water Heater, showing the Rheem logo and 'PRESTIGE series PROFESSIONAL' branding.

Image: Back view of the Rheem RTGH-95DVLP-2 Tankless Water Heater, showing mounting points and structural details.

Image: Side view of the Rheem RTGH-95DVLP-2 Tankless Water Heater, illustrating its depth and profile.

Image: Diagram illustrating the dimensions of the Rheem RTGH-95DVLP-2 Tankless Water Heater: 27.5 inches high, 18.5 inches wide, and 9.75 inches deep. Also indicates 2-inch or 3-inch vent diameter options.
Components Overview
Understand the main internal and external components of your tankless water heater.

Image: Exploded view of the Rheem RTGH-95DVLP-2 Tankless Water Heater, showing all major internal components such as the heat exchanger, control board, burner assembly, and various sensors, along with external connections and the remote control.

Image: Internal view of the Rheem RTGH-95DVLP-2 Tankless Water Heater, displaying the heat exchanger, control board, and various wiring and plumbing components.

Image: Underside view of the Rheem RTGH-95DVLP-2 Tankless Water Heater, showing the various water and gas connections at the bottom of the unit.

Image: Top view of the Rheem RTGH-95DVLP-2 Tankless Water Heater, showing the two circular vent connections.
Setup and Installation
Installation of this tankless water heater requires professional knowledge of plumbing, gas, and electrical systems. It is highly recommended that installation be performed by a qualified and licensed professional.
Pre-Installation Checklist for Tankless Gas Water Heaters
- Inlet & Exhaust Connections: Verify the required sizes and materials for inlet and exhaust connections.
- Maximum Vent Length: Confirm the maximum allowable length for the vent run.
- Temperature Delivery: Ensure the selected unit can deliver your required water temperature for your region.
- Required Clearance: Adhere to all specified clearances for unit installation.

Image: Tankless Gas Water Heater Purchase Checklist. This image outlines key considerations before purchasing and installing a tankless gas water heater, including vent connections, maximum vent length, temperature delivery, and required clearances.
Replacing a Gas Tank with a Tankless Gas Water Heater Checklist
- Venting: Existing exhaust venting from a tank heater may not be compatible. Condensing tankless units often require PVC or non-condensing stainless steel exhaust venting.
- Main Gas Line: A 3/4-inch natural gas line is recommended for optimal performance compared to a 1/2-inch line. Note: This model is Liquid Propane, ensure correct gas line sizing for LP.
- Electricity: Tankless gas water heaters require an electrical power supply, which old tank models may not have needed.
- Piping: Inlet and outlet piping may require alterations to connect the tankless gas water heater.

Image: Checklist for replacing a traditional gas tank water heater with a tankless unit. Highlights considerations for venting, gas line, electrical requirements, and piping modifications.
Installation Environment

Image: The Rheem RTGH-95DVLP-2 Tankless Water Heater installed on a wall in a utility space, connected to plumbing and a remote control panel. This illustrates a typical indoor installation setup.
Operating Instructions
Once properly installed and connected to gas, water, and electrical supplies, your Rheem tankless water heater is designed for automatic operation.
Initial Startup
- Ensure all gas and water valves are fully open.
- Turn on the electrical power to the unit.
- Open a hot water faucet in your home. The unit will detect water flow and initiate the heating process.
- Allow water to run for a few minutes to purge any air from the system.
Temperature Adjustment
The water heater's temperature can be adjusted via the remote control panel. Refer to the separate remote control manual for detailed instructions on setting your desired water temperature.
Hot Start Programming
This unit features exclusive Hot Start Programming, which keeps the unit in a ready-fire state to minimize the "cold water sandwich" effect often associated with tankless water heaters. This ensures hot water is delivered more quickly and consistently.
Maintenance
Regular maintenance is crucial for the longevity and efficient operation of your tankless water heater. It is recommended to have the unit inspected and serviced annually by a qualified technician.
Annual Servicing
- Flushing: The heat exchanger should be flushed annually to remove mineral deposits, especially in areas with hard water.
- Filter Cleaning: The inlet water filter should be inspected and cleaned as needed.
- Ventilation Check: Ensure all ventilation components are clear and free from obstructions.
- Gas and Water Connections: Inspect all connections for leaks or corrosion.
Water Savings Technology
The Rheem RTGH-95DVLP-2 incorporates advanced water savings technology designed to reduce water consumption by up to 1,100 gallons per year. This is achieved through efficient operation and minimizing standby losses.
Troubleshooting
If you experience issues with your tankless water heater, consult the following basic troubleshooting steps. For complex problems, contact a qualified service technician.
- No Hot Water:
- Check if the gas supply is on.
- Verify electrical power to the unit.
- Ensure water flow is sufficient to activate the unit.
- Check for error codes on the remote control panel.
- Inconsistent Hot Water / Cold Water Sandwich:
- Confirm Hot Start Programming is enabled (if applicable and configurable).
- Ensure the unit is sized correctly for your household's demand.
- Low Water Pressure:
- Inspect the inlet water filter for clogs.
- Check for kinks in water lines.
- Unusual Noises:
- Gurgling or popping sounds may indicate mineral buildup in the heat exchanger, requiring flushing.
- Consult a technician for any persistent or loud unusual noises.
For further assistance, refer to the detailed troubleshooting guide in the full product manual or contact Rheem customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | Rheem |
| Model Number | RTGH-95DVLP-2 |
| Product Dimensions | 18.5" W x 27.5" H |
| Color | Gray |
| Voltage | 120 Volts |
| Heat Output | 199,900 BTU (Gas Consumed per Hour) |
| Efficiency | 95% to 96% |
| Style | RTGH-95DVLP-2 (9.5 GPM) |
| Maximum Operating Pressure | 150 PSI |
| Mounting Type | Wall Mount |
| Fuel Type | Liquid Propane (LP) |
| Item Weight | 77 pounds |
| Usage | Indoor |
| UPC | 020352695709 |
Performance Guide - RTGH-2 Series (Water Flow GPM vs. Temperature Rise)

Image: Performance guide table for Rheem RTGH-2 series, showing water flow in GPM at various temperature rises (35°F to 100°F) for different models including RTGH-95. This table helps determine the unit's capacity based on incoming water temperature and desired output temperature.
Warranty Information
Specific warranty details for the Rheem RTGH-95DVLP-2 Tankless Water Heater are provided with the product documentation. Please refer to the warranty card or the full owner's manual for terms, conditions, and registration information. Keep your proof of purchase for warranty claims.
Customer Support
For technical assistance, installation questions, or service inquiries, please contact Rheem customer support. A prominent 800 number for installation/service support is typically located on the unit itself or within the included documentation.
You can also visit the official Rheem website for additional resources, FAQs, and contact information: www.rheem.com