1. Introduction
The Rinnai EX17CTP Direct Vent Wall Furnace is designed to provide efficient and consistent heating for indoor spaces. This unit features stainless steel bunsen burners, a warm air outlet with forced combustion and convection through bottom front louvers, and an enameled tray humidifier. It is suitable for homes, apartments, condominiums, and commercial settings, and is approved for modular/mobile home use.
Key features include an electronic spark ignition, a seven-stage modulating gas valve, timer settings, a variable speed inducer motor with pressure switch, and an electronic thermostat with a temperature range of 60°F to 80°F. For safety, it incorporates a child lock and self-diagnostic electronics that monitor functions, provide auto shutdown codes, and automatically restart if ignition or combustion fails.
Video: Rotational view of the Rinnai EX17CTP Wall Furnace, highlighting its exterior design and compact form factor.
Video: Overview of Rinnai's features and benefits, including energy efficiency and heating performance.
2. Setup and Installation
The Rinnai EX17CTP is designed for indoor installation only and requires direct venting. Professional installation by a qualified technician is highly recommended to ensure proper and safe operation, as well as compliance with local codes and regulations.
2.1 Unpacking and Inspection
Carefully unpack the unit and inspect it for any shipping damage. Report any damage immediately to your dealer or installer.
2.2 Location Requirements
- Ensure the installation location allows for proper direct venting to the outside.
- Maintain adequate clearances from combustible materials as specified in the installation manual.
- The unit is wall-mounted; ensure the wall structure can support the unit's weight (57 lbs).
- The unit requires a standard electrical outlet for its electronic spark ignition and fan operation.
2.3 Gas Connection
Connect the unit to a propane gas supply. All gas connections must be performed by a licensed professional.
2.4 Venting
The direct vent system draws combustion air from outside and exhausts combustion by-products outside, ensuring safe indoor air quality. Follow the detailed instructions in the separate installation manual for proper venting.

Image: Front view of the Rinnai EX17CTP Direct Vent Wall Furnace.
3. Operating Instructions
The Rinnai EX17CTP features a user-friendly control panel for easy operation.
3.1 Power On/Off
- Press the On/Off button to turn the unit on or off.
3.2 Setting Temperature
- Use the Temp Up/Down arrows to adjust the desired room temperature. The thermostat range is 60°F to 80°F.
- The unit will automatically modulate its heat output to maintain the set temperature.
3.3 Timer Settings
- The unit includes programmable timer settings (Timer 1, Timer 2) to schedule heating cycles. Refer to the detailed programming section in the full manual for specific instructions.
3.4 Child Lock
- Activate the Lock function to prevent unintended changes to settings, especially useful in households with children.
3.5 Economy Mode
- Engage Economy mode to optimize energy consumption. In this mode, the unit allows the temperature to drop by a few degrees before actively heating, reducing continuous operation.
4. Maintenance
Regular maintenance ensures the longevity and efficient operation of your Rinnai EX17CTP furnace.
4.1 Filter Cleaning
The unit is equipped with a mesh filter that collects dust and debris. A 'Filter' indicator light on the control panel will illuminate when cleaning is required.
- Turn off the unit before attempting to clean the filter.
- Locate the filter access panel, typically at the top or front of the unit.
- Gently pull out the mesh filter.
- Clean the filter by rinsing it with water or vacuuming off accumulated dust and lint. Ensure it is completely dry before reinserting.
- Reinsert the filter and close the access panel. Turn the unit back on.

Image: Diagram illustrating key features of the Rinnai EnergySaver Direct Vent Wall Furnace, including indoor installation, consistent heating, user-friendly control panel, wall thermostat compatibility, high altitude approval, modulating technology with convection fan, and warranty details.
4.2 Annual Inspection
It is recommended to have a qualified service technician inspect the unit annually to ensure all components are functioning correctly and safely.
5. Troubleshooting
The Rinnai EX17CTP features self-diagnostic electronics. If an issue occurs, the unit may display an error code or shut down automatically.
- No Heat/Unit Not Turning On: Check the power supply and gas connection. Ensure the unit is switched on and the thermostat is set above the current room temperature.
- Filter Light On: Clean the air filter as described in the Maintenance section.
- Unusual Noises: While the unit is designed for quiet operation, any new or loud noises should be investigated. Ensure the fan is not obstructed.
- Error Codes: If an error code appears on the display, consult the detailed troubleshooting guide in the full product manual or contact Rinnai customer support.
For persistent issues, contact a qualified service technician.
6. Specifications
| Feature | Specification |
|---|---|
| Brand | Rinnai |
| Model Number | EX17CTP |
| Fuel Type | Propane |
| Heat Output | 17,000 British Thermal Units (BTU) |
| Heating Coverage | 340-354 square feet |
| Min Temperature Setting | 60°F |
| Max Temperature Setting | 80°F |
| Power Source | Corded Electric, Gas Powered |
| Form Factor | Wall-Mounted |
| Indoor/Outdoor Usage | Indoor |
| Item Weight | 57 Pounds |
| UPC | 766156009860 |

Image: Detailed product specifications for the Rinnai EX17CTP, including depth, height, width, weight, gas type, installation type, power consumption, noise level, altitude approval, wall thermostat compatibility, and warranty.

Image: Comparison table of various Rinnai EnergySaver Direct Vent Wall Furnace models (EX08CT, EX11CT, EX17CT, EX22CT, EX38CT), showing differences in gas type, fan CFM output, power consumption, noise level, and BTU range. The EX17CTP is highlighted.

Image: Map of National Heat Zones with a table indicating recommended cubic feet and square feet heating area for the EX17CTP model across different zones.

Image: Side-by-side comparison of the Rinnai EX17CTP and EX17DTP models, detailing similarities in power consumption, length x width x height, and noise level, and differences in weight.
7. Warranty and Support
7.1 Warranty Information
Rinnai products are built to high standards. The EX17CTP typically includes a residential warranty:
- Heat Exchanger: 10 Years
- Labor: 2 Years
- Parts: 5 Years
*Terms & Conditions may apply. Please refer to your product registration or Rinnai's official website for complete warranty details.
7.2 Customer Support
For technical assistance, troubleshooting, or warranty claims, please contact Rinnai Customer Support. High-quality, safe, and efficient appliances are a priority for Rinnai, and their customer support is available to assist you.
You can visit the Rinnai Store on Amazon for more information or to explore other Rinnai products.





