Key facts
- Manuals
- 1
- Languages
- EN
- Last added
- 2023-10-26
Featured Robert H. Peterson Co. manuals

Robert H. Peterson Co. G9-20/24/30(P) Unvented Gas Heater Owner's Manual
This manual provides installation and operational instructions for Robert H. Peterson Co.'s G9-20/24/30(P) unvented gas heater. It includes safety warnings, ventilation requirements, and step-by-step guidance for installation and servicing. The unit is certified to ANSI standards and requires professional installation. Safety precautions are emphasized, including oxygen depletion sensor operation and carbon monoxide risks.
The manual also covers cleaning, servicing, and troubleshooting, with specific sections for different burner models and remote control systems. It specifies minimum fireplace dimensions and chimney requirements, and warns against modifications or use with non-certified parts.
Covers: Getting Started · Important Safety Information · Ventilation and Confined Space Safety · Installation · Use, Care, & Service · Troubleshooting
Latest Robert H. Peterson Co. manuals
Robert H. Peterson Co. G9-20/24/30(P) Unvented Gas Heater Owner's Manual
User Manual 32 pages · 876 KB · ENOwner's manual for Robert H. Peterson Co.'s G9-20/24/30(P) unvented gas heater, covering installation, safety, and operation.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Robert H. Peterson Co. manuals
What is the oxygen depletion sensor (ODS) threshold?
The ODS shuts the burner system off before the oxygen level drops below 18%.
From: Robert H. Peterson Co. G9-20/24/30(P) Unvented Gas Heater Owner's Manual
Can this heater be installed in a manufactured home?
Yes, if not prohibited by local codes and installation conforms to applicable standards (e.g., Title 24 CFR, Part 3280 in the U.S.).
From: Robert H. Peterson Co. G9-20/24/30(P) Unvented Gas Heater Owner's Manual
