Replacement natural gas (NG) back burner assembly for Heatilator gas fireplaces. OEM HHT part # 4000-121
Heatilator Caliber nXt Series Back Burner Assembly – NG (4000-121)
Model Compatibility
Fits These Models
Manuals & Documents
Manuals for the Caliber nXt Series are being added to our manuals library. Need one now? Ask us or call 406-272-9850.
Before you order
This part is listed for the Heatilator Caliber nXt Series. Check the model name and serial number on your appliance’s rating label and make sure they match — Heatilator built many models in more than one version (and gas models for natural gas or propane), and some parts changed between versions.
Not sure it’s the right part? Call 406-272-9850 or send us your model and serial number and we’ll confirm it before you order. Or browse all Heatilator Burners.
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