Image unavailable
Image unavailable
Watlow
Watlow FIREBAR Flat Tubular Heater
Quote on request
No online payment · add lines to RFQ BOM
FIREBAR flat tubular; 1 in / 5/8 in; to ~120 W/in². RFQ + selection help.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
N/A (heater; sheath capability Alloy 800 up to ~760 °C / 1400 °F; 304 SS up to ~650 °C / 1200 °F per Watlow FIREBAR literature)
Accuracy
N/A (heater assembly; not a measuring instrument)
Output
N/A (resistive heating element)
Supply
Configured per order (industrial VAC classes)
Protection
Terminal enclosure options per tubular/FIREBAR catalog
Ambient temperature
Application-dependent; sheath/material limits per specification sheet
Fits flat tubular heating where you need a Watlow FIREBAR in 1 in or 5/8 in sizes with Alloy 800 or 304 SS sheath and watt densities up to about 120 W/in².
Key advantages
- Type — FIREBAR flat tubular heater (1 in and 5/8 in sizes)
- Watt density — Up to ~120 W/in² (1 in double-ended) / ~90 W/in² (5/8 in); single-ended lower
- Sheath — Alloy 800; 304 stainless steel
- Temperature — Alloy 800 to ~1400 °F; 304 SS to ~1200 °F
- Duty — Immersion (oil/water), air, radiant, clamp-on
Typical applications
- Immersion heater element bundles.
- Clamp-on and radiant heating.
- Circulation heater FIREBAR packages.
Selection guide
- Size — 1 in vs 5/8 in; single vs double-ended
- Sheath — Alloy 800 vs 304 SS
- V / W / watt density — Media limits
- Form — Straight vs formed
Common mistakes
- Treating FIREBAR as round WATROD for hole fit.
- Excess watt density in viscous oils.
- Ignoring formed-bend factory limits.
When to RFQ / what to tell us
- Media/T, size, V/W.
- Sheath; terminations; quantity; ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 21712 |
| Brand | Watlow |
| Model | Watlow FIREBAR Heater |
| Product type | Flat Tubular Heater |
| Element type | FIREBAR flat tubular heater (1 in and 5/8 in sizes) |
| Watt density | Up to ~120 W/in² (double-ended 1 in) / ~90 W/in² (double-ended 5/8 in) class; single-ended lower — see HAN-FTH-0807 |
| Sheath materials | Alloy 800; 304 stainless steel |
| Sheath temperature notes | N/A (heater; sheath capability Alloy 800 up to ~760 °C / 1400 °F; 304 SS up to ~650 °C / 1200 °F per Watlow FIREBAR literature) |
| Supply | Configured per order (industrial VAC classes) |
| Applications | Immersion (oil/water), air, radiant, clamp-on heating |
| Notes | OEM Watlow FIREBAR specification sheet HAN-FTH-0807 + tubular catalog |
Documents
- Watlow FIREBAR documentation (HAN-FTH-0807) — request current OEM PDF on RFQ — request current OEM PDF on RFQ
FAQ
Q: Sizes? A: 1 in and 5/8 in FIREBAR sizes.
Q: FIREBAR vs WATROD? A: FIREBAR is flat tubular; WATROD is round tubular.
Q: What should I send for a quote? A: Size/V/W/alloy, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | N/A (heater; sheath capability Alloy 800 up to ~760 °C / 1400 °F; 304 SS up to ~650 °C / 1200 °F per Watlow FIREBAR literature) |
| Accuracy | N/A (heater assembly; not a measuring instrument) |
| Output | N/A (resistive heating element) |
| Supply | Configured per order (industrial VAC classes) |
| Protection | Terminal enclosure options per tubular/FIREBAR catalog |
| Ambient temperature | Application-dependent; sheath/material limits per specification sheet |
| Sensor type | Optional process/sheath sensors available with heater assemblies |
| Notes | OEM Watlow FIREBAR specification sheet HAN-FTH-0807 + tubular catalog. No Instrumart. |
| Element Type | FIREBAR flat tubular heater (1 in and 5/8 in sizes) |
| Watt Density | Up to ~120 W/in² (double-ended 1 in) / ~90 W/in² (double-ended 5/8 in) class; single-ended lower — see HAN-FTH-0807 |
| Sheath Materials | Alloy 800; 304 stainless steel |
| Applications | Immersion (oil/water), air, radiant, clamp-on heating |