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ADP SEP-300A-5 - SEP Series 300 MBTUH Commercial Unit Heater, Natural Gas, Aluminized Steel Heat Exchanger

Item: SEP-300AN
MFR: 078015803
This product is no longer available for purchase.
Comparable Product:


SEP Series
Commercial Unit Heaters
Product Features
  • Heating capacities from 100,000 - 400,000 BTUH.
  • Up to 80.5% thermal efficiency.
  • Stainless steel heat exchanger is available for longer product life.
  • Power exhaust system with a sealed flue collector allows conventional vertical or horizontal venting to 35 ft.
  • Sidewall venting eliminates roof penetrations.
  • Wiring junction box is located outside of unit.
  • Self-diagnostic board with LED display improves troubleshooting efficiency and accuracy.
  • Integrated spot nuts for easy installation using threaded rod.
  • Easy to clean tubular heat exchangers made of aluminized steel or stainless steel, providing resistance to corrosion and oxidation.
  • Heat exchangers are laboratory life-cycle tested.
  • Easy to clean in-shot burners.
  • Direct drive propeller fans are dynamically balanced for quiet, smooth operation.
  • Safe direct spark ignition. No standing pilot light.


NameADP SEP-300A-5 - SEP Series 300 MBTUH Commercial Unit Heater, Natural Gas, Aluminized Steel Heat Exchanger
BrandAdvanced Distributor Products
Gemaire Item NumberSEP-300AN
Manufacturer Product Number078015803
SKU - PIM Number1374780266789
ERP Number201423
Unit of MeasureEA
Weight261.0 Pounds (Lb)
Length40.0 Inches (In)
Width41.1 Inches (In)
Height32.2 Inches (In)
Hazardous MaterialNo
EPA Cert RequiredNo
Country of OriginUSA
Air FlowHorizontal
BTU Input300000
BTU Output243000
Voltage115 VAC
Ignition TypeDirect Spark
Motor HP1/8 HP
Connection Size3/4"
Connection TypeNPT
Flue Size5"
Gas Connection3/4" [19.05 mm] N.P.T.
Gas TypeNatural Gas
Warranty Offered5 Year
CSA CertifiedYes
LEED CertifiedNo
UL ListedYes
UL RecognizedYes
Product FamilySEP
GEM - Case Quantity


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