Heaters / Indirect Air Heaters | Heat Exchangers

VariMax™ OTH (Once-Through Heater)

The VariMax™ OTH (Once-Through Heater) is a high efficiency, industrial, indirect-fired gas heater used to heat process air streams without contaminating the air with the products of combustion. The OTH is well-suited for recirculating ovens, dryers, makeup-air applications in cold environments, and industrial processes with moderate temperature rises.

Product information
Service and upgrades
Downloads

80% min effectiveness
Up to 150°F rise
Up to 600°F discharge
Flanged for duct mounting
Optional gas train & control packages
Complete heater box supply
Complete heating packages available, including filters, dampers, fans and duct sections
Available in 6 pre-designed sizes: 500 MBTU - 3,500 MBTU
Designed to use on Maxon OvenPak burners
.2% maximum leakage

Installation Support

Product sheet (1.01 MB)
VariMax Once-Through Heater (OTH)

Product information
- 80% min effectiveness
- Up to 150°F rise
- Up to 600°F discharge
- Flanged for duct mounting
- Optional gas train & control packages
- Complete heater box supply
- Complete heating packages available, including filters, dampers, fans and duct sections
- Available in 6 pre-designed sizes: 500 MBTU - 3,500 MBTU
- Designed to use on Maxon OvenPak burners
- .2% maximum leakage
Service and upgrades
- Installation Support
Downloads
- Product sheet (1.01 MB)
  VariMax Once-Through Heater (OTH)

VariMax™ OTH (Once-Through Heater)

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VariMax™ OTH (Once-Through Heater)

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