Ordering the right replacement part for your gas fireplace starts with one critical piece of information: your model number. Without it, you're guessing — and guessing with gas fireplace parts can mean ordering the wrong thermocouple length, the wrong pilot assembly type, or a gas valve that doesn't fit.

This guide shows you exactly where to find the model and serial number on every major gas fireplace brand, plus what to do if the label is missing or unreadable.

Why the Model Number Matters

Gas fireplaces are not one-size-fits-all. Even within a single brand, different models can use completely different:

• Gas valves — SIT, Honeywell, Robertshaw, or Maxitrol, each with different mounting, connections, and orifice sizes
• Pilot assemblies — Different ignition types (standing pilot, intermittent pilot, direct spark), different gas types (natural gas vs. propane), different mounting positions
• Thermocouples and thermopiles — Different lengths, tip styles, and connector types
• Remote systems — Proflame, Skytech, Mertik, or proprietary systems
• Blower kits — Different sizes, voltages, and mounting configurations

The model number is the key that unlocks the correct parts list for your specific unit.

Where to Find the Rating Plate

Every gas fireplace has a rating plate (also called a data plate or nameplate) permanently attached to the unit. This plate contains the model number, serial number, gas type, BTU rating, and manufacturing date. Here's where to look by brand:

Heat N Glo / Heatilator / Quadra-Fire (HHT brands)

These three brands are all manufactured by Hearth & Home Technologies (HHT). The rating plate is typically found:

• Bottom of the firebox — Remove the lower access panel (below the glass) and look on the floor of the firebox, toward the front edge.
• Left or right side panel — Inside the control compartment, on the metal sidewall.
• Behind the lower louver — On some models, the plate is visible when you remove or open the bottom grille.

HHT model numbers usually start with letters indicating the product line (e.g., SL for Slimline, 6000 for 6000 series) followed by specific configuration codes.

Napoleon / Continental

Napoleon fireplaces typically have the rating plate in one of these locations:

• Inside the control compartment — Remove the bottom access panel and look on the left or right interior wall.
• On the firebox frame — Behind the decorative front, on the metal frame surrounding the firebox opening.
• Back of the unit — Some models have a second label on the rear of the fireplace (only accessible if the unit is pulled out, which is rare).

Napoleon model numbers typically start with a product type code (GD for gas direct vent, GVF for vent-free, etc.) followed by a size number.

Empire / White Mountain Hearth

Empire Comfort Systems and their White Mountain Hearth brand place the rating plate:

• Inside the lower control compartment — Behind the bottom access panel, usually on the left side wall or on the floor of the compartment.
• On the burner tray — Some older Empire models have the plate attached to the burner assembly.

Empire model numbers can be long and include gas type indicators (N for natural gas, P for propane) and feature codes.

Superior / Lennox

Superior fireplaces (now under the Lennox Hearth Products umbrella) typically place the rating plate:

• Control compartment floor or wall — Inside the lower access area.
• On the firebox shell — On the exterior metal casing of the firebox, accessible from the sides or below.

Majestic / Vermont Castings

Majestic fireplaces (now part of the Hearth & Home Technologies family) have the rating plate:

• Lower left or right side — Inside the control compartment area.
• On the unit frame — Attached to the structural frame, visible when the lower panel is removed.

Monessen / FMI (Fireplace Manufacturers Inc.)

• Control compartment — Similar to Empire, the plate is usually inside the lower access area.
• Near the gas valve — Some models have it adjacent to the gas valve mounting area.

What Information Is on the Rating Plate

A typical gas fireplace rating plate includes:

• Model Number — The alphanumeric code identifying your specific fireplace model and configuration
• Serial Number — A unique identifier for your individual unit, useful for warranty claims and manufacturing date identification
• Gas Type — Natural gas (NG) or propane/LP
• BTU Input — The maximum heat output rating
• Manifold Pressure — Gas pressure specification
• Certification — CSA, UL, or other safety certification marks
• Manufacturing Date — Sometimes explicit, sometimes encoded in the serial number

What If the Rating Plate Is Missing or Unreadable?

Over years of heat exposure, rating plates can fade, peel, or fall off entirely. If you can't read yours, try these alternative methods:

1. Check Your Installation Documents

If you have the original installation manual, owner's manual, or any paperwork from when the fireplace was installed, the model number should be listed there. Check filing cabinets, home closing documents, or ask the previous homeowner if you purchased the house recently.

2. Search Online by Visual Identification

Take clear photos of your fireplace from the front, the gas valve, and the pilot assembly. Many fireplace forums and manufacturer websites can help identify the model from photos. Key identifying features include:

• The shape and size of the viewing window
• The style of louvers or trim
• The type of gas valve (SIT, Honeywell, Robertshaw)
• The pilot assembly configuration

3. Contact the Manufacturer

If you can find any portion of the serial number (even a partial number), the manufacturer may be able to look up your unit. Most major brands have customer service lines specifically for parts identification.

4. Ask a Local Dealer or Technician

Authorized dealers and experienced fireplace technicians can often identify a fireplace model on sight, especially for the brands they commonly service.

5. Check for Secondary Labels

Some fireplaces have additional labels on:

• The glass door frame
• The gas valve itself (which has its own model number)
• The venting components
• The blower or fan assembly

Even if these aren't the fireplace model number, they can help narrow down the identification.

Gas Valve Model Numbers

The gas valve inside your fireplace has its own model number, separate from the fireplace model number. This is important because you can sometimes order a replacement gas valve using just the valve model number. Common gas valve manufacturers include:

• SIT — Model numbers like 820 Nova, 630 Eurosit, 0820639, etc.
• Honeywell — Model numbers starting with VR, VS, or SV series
• Robertshaw — Model numbers starting with 7000 or 7200 series
• Maxitrol — Model numbers starting with GV series

Browse our gas valve collection to find your replacement by valve model number.

Recording Your Information

Once you've found your model and serial number, save this information somewhere permanent:

1. Take a clear photo of the rating plate with your phone
2. Write the model and serial number in your home maintenance file
3. Note the gas type (natural gas or propane) — this affects which replacement parts you need
4. Record the gas valve model number separately

Having this information readily available will save you significant time whenever you need to order replacement parts or schedule service.

Find Parts for Your Fireplace

Once you have your model number, finding the right replacement parts is straightforward. At Fireplace Choice, we organize parts by brand and component type to make shopping easy:

• Thermocouples
• Thermopiles
• Pilot Assemblies
• Gas Valves
• Remote Controls
• Blower Kits

Can't find your model or not sure which part fits? Contact our team with your fireplace brand, model number, and a description of the issue — we'll help you find the exact replacement you need.