The top picks below target the N40T61-343 burner assembly landscape and similar gas appliance burners. Each option is chosen for compatibility, ease of replacement, and reliable performance. This guide helps homeowners, technicians, and DIY enthusiasts select a burner assembly that fits their unit and budget. The following table lists five suitable products to compare at a glance.
| Product | Brand | Type |
|---|---|---|
| AO Smith 100112342 – K, FINAL BURNER ASSY, NAT, 16″, #37 ORIFICE | A. O. Smith Store | Final burner assembly, natural gas, 16″ length, #37 orifice |
| Rheem SP43285 Burner Assembly – 40 in. Kit | Rheem | 40″ burner kit with ignitor pilot support |
| BLODGETT 7849 Burner Assembly | BLODGETT | Burner assembly |
Note: This table highlights five focused options to compare. Each product section below provides more detail, suggested buyers, and limitations to aid selection.
AO Smith 100112342 – Final Burner Assembly
Best for: Natural gas setups needing a 16″ final burner with a #37 orifice. This AO Smith option aligns with older natural-gas appliances that require a compact, OEM-style replacement. Its 16″ length supports standard burner housings and maintains airflow expectations essential for stable flame and heat output.
Why selected: It is a straightforward, factory-style component designed to fit compatible AO Smith and select OEM configurations. The #37 orifice suggests a specific gas pressure and flow suitable for natural gas supply in standard residential systems.
Limitation: Compatibility is most reliable within AO Smith or closely matched OEM systems; verify exact model compatibility before purchase to avoid fitment issues.
Rheem SP43285 Burner Assembly – 40 in. Kit
Best for: 40-inch burner kits replacing entire assemblies in compatible Rheem water heating systems or furnaces that require an ignitor pilot flame for safety. This kit-style option is ideal when a complete burner replacement is needed plus ignition support.
Why selected: It includes ignition-related features that can simplify retrofits in compatible Rheem units and maintains safe operation with pilot flame control.
Caution: Ensure the serial and model match your water heater or appliance—incorrect sizing or configuration can lead to improper flame characteristics or fitment challenges.
BLODGETT 7849 Burner Assembly
Best for: BLODGETT burner replacements in compatible RVs, campers, or compact appliances that use the 7849 assembly. Suited for users seeking a straightforward, OEM-style replacement with known part numbers.
Why selected: The model number clearly identifies this as a dedicated BLODGETT burner assembly, reducing guesswork for replacement parts in BLODGETT-equipped units.
Limitation: Availability may vary by retailer or region; confirm that the 7849 designation matches the existing unit’s configuration before ordering.
Natural Gas Burner Assembly, 265-47439-05-32
Best for: General utility replacement when the model number 265-47439-05-32 matches the system’s specifications. Useful for miscellaneous burner assemblies where other brand naming is not a direct match.
Why selected: This option broadens compatibility for miscellaneous natural gas burner needs, offering a practical alternative when OEM parts are hard to source.
Caution: Ensure exact fitment by cross-referencing model numbers and gas type (natural gas vs. propane) to avoid incorrect installation.
Atwood 92615 Main Burner Assembly
Best for: Atwood gas systems that require a dedicated main burner assembly, especially in US-made units. This option is tailored for customers who trust Atwood’s design and compatibility with similar RV or portable appliance configurations.
Why selected: It aligns with Atwood’s standard assembly approach, potentially ensuring easier fitment in units known to accommodate this brand’s components.
Caution: Verify that the Atwood 92615 matches your model’s mounting points and gas inlet arrangement before purchasing.
Buying Guide
- Compatibility and identification: Always verify model numbers, gas type (natural vs. propane), and length (e.g., 16″ or 40″) to ensure a proper fit. Look for OEM part numbers when possible to minimize fit issues.
- Gas type and orifice sizing: The #37 orifice and similar specs influence flame characteristics. Match the correct orifice for your gas supply pressure and appliance design.
- Installation considerations: Replacement may involve disconnecting gas lines and electrical ignitors. If unsure, consult a professional technician to avoid leaks or ignition hazards.
- OEM vs. aftermarket: OEM assemblies typically offer the most straightforward compatibility; aftermarket parts can be cost-effective but require careful verification of dimensions and connectors.
- Component completeness: Some kits include ignitors or pilot components. If your unit has an ignition system, confirm whether those parts are included or needed separately.
- Availability and sourcing: Parts availability can vary by region and supplier. Keep a couple of compatible options in mind to reduce downtime.
Frequently Asked Questions
- Q: How do I know which burner assembly fits my appliance?
A: Check the model number on your appliance, refer to the user manual, and compare the part number or orifice size with OEM specifications. - Q: Can I replace just the burner without other parts?
A: It depends on the unit. Some burners are modular, while others require a full kit to ensure proper ignition and gas flow. - Q: Is natural gas vs. propane a concern when selecting a burner?
A: Yes. Burners are configured for specific gas types; using the wrong type can affect flame quality and safety. - Q: Are replacement burners easy for DIY installation?
A: Replacement can be straightforward for some models but may require handling gas connections and ignition components. If in doubt, hire a professional. - Q: Do all burner assemblies include ignition components?
A: Not always. Some come with ignitors or pilots; others require separate parts or existing ignition systems. - Q: Should I replace multiple parts at once?
A: If multiple components in the same system show wear, replacing them together can reduce reseating and future downtime.