Replacement review
Thermax ambient air vaporizer replacement
Yes, FWM can review a Thermax ambient air vaporizer for replacement. FWM engineering reviews the existing unit by manufacturer, model, nameplate, gas service, flow rate, pressure, footprint, and connections, then recommends a replacement path. FWM does not publish guaranteed or drop-in equivalents; every recommendation follows an application review.
Brand names are referenced only to identify existing equipment. FWM is not affiliated with those manufacturers, including Thermax. Replacement recommendations require application review.
Unit Down?
Unit down? Call (603) 578-3366 and ask for engineering.
- Same-business-day review on nameplate photos.
- Typically ships within 2 business days after payment and shipping verification.
Thermax reference
Identifying an existing Thermax ambient air vaporizer
- Documented model families
- Thermafin SuperGap (SG__HF ambient air series)
- Known capacity families
- The published Thermafin SuperGap table spans the SG20HF through SG770HF ambient air models, with smaller and larger SuperGap models routing to engineering review.
- Footprint & connection review
- FWM reviews mounting pad, height, width, depth, and connection size and orientation against the existing SuperGap unit; final fit is confirmed during engineering review.
Source: Thermafin SuperGap datasheet rev 3.5 (2018), PN 20958489. Last reviewed 2026-06-25. Figures are drawn from published manufacturer documentation and confirmed by FWM engineering against your specific unit before any quotation.
Information checklist
What FWM reviews to recommend a replacement path
FWM engineering reviews your existing unit and recommends a replacement path. The more detail you send, the faster that review goes.
| Existing unit information | What FWM needs |
|---|---|
| Manufacturer | Brand name from the nameplate or documentation |
| Model number | Nameplate or original documentation |
| Nameplate photo | Clear image of the unit nameplate |
| Gas service | LIN, LOX, LAR, LNG, H2, He, or other |
| Flow rate | SCFH, SCFM, lb/hr, kg/hr, or unknown |
| Pressure | PSIG, bar, or unknown |
| Footprint | Mounting pad, height, width, depth |
| Connection orientation | Size, type, orientation |
| Operating environment | Indoor or outdoor, climate, mounting location |
| Duty cycle / run time | Continuous, intermittent, or unknown |
| Photos of existing installation | Full unit, nameplate, connections, mounting |
Photos help
Nameplate, full unit, connections, and mounting location
Documentation
Original spec sheets, drawings, or O&M manuals if available
Operating conditions
Current flow rate, pressure, and duty cycle if known
Frequently asked questions
What information does FWM need to review a Thermax replacement?
FWM reviews the manufacturer, model number, gas service, flow rate, pressure, footprint, and connection sizes and orientation. Photos of the nameplate, full unit, connections, and mounting location help speed the review.
How do I read the nameplate on my existing unit?
The nameplate is usually fixed to the frame or a header and lists the manufacturer, model number, and service rating. Send a clear photo of the nameplate along with any original spec sheets or O&M manuals if you have them.
Can FWM match the footprint and connections of a Thermax unit?
FWM reviews the mounting pad, height, width, depth, and connection sizes and orientation as part of the replacement review and recommends a replacement path that fits the application. Final fit is confirmed during engineering review.
Does FWM guarantee the replacement?
No. FWM does not make guaranteed or drop-in claims. FWM engineering reviews your existing unit and recommends a replacement path based on the application details you provide.
Is FWM affiliated with Thermax?
No. FWM is not affiliated with Thermax. The Thermax name is referenced only to help identify your existing equipment.
Have your Thermax nameplate and specs ready?
FWM engineering reviews your existing unit and recommends a replacement path. Send your nameplate photo, model number, gas service, flow rate, pressure, and footprint to get started.