Complete CTHND

Negative Pressure Tube Heater System With Uniform Tube Temperatures
Negative Pressure Tube Heater

Roberts Gordon® Complete™ CTHND-Series infrared negative pressure tube heaters deliver custom, efficient heating options without the custom price tag. Multi-burner heater layout allows for up to 16 burners per system, covering 1.6 million Btu/h. Heaters are also available in unitary configuration. Multi-burner systems reduces building penetrations and installation cost pairing multiple burners per pump.

Based on the type of layout and the desired heating area, multiple different burner inputs can be paired within the same system layout. Suggested design layouts are shown below. 


Typical Design Layout
 Vantage® NP Typical Design Layout

Multi-burner system layouts combine radiant tube sections with a common manifold and pump to form a complete system. Based on system design, heat-treated aluminized or coating tubing installed for the manifold reduces condensate once system is fully operational. Each layout is equally effective in maximizing heat pattern and the overall negative pressure tube heater performance. Click here for additional layout options. 

Product Specifications

Input (Btu/h) * (1000)

40, 60, 80, 100, 125, 150, 175, 200

Clearances to Combustibles*

41in - 76in / 3.4ft - 6.3ft 

Fuel Type

Natural Gas or LPG Propane

Heat Exchanger Tubing

10ft sections, 4" dia., 16 gauge, first ten feet ALUMI-THERM® steel tubing /
Remaining Heat Treated Aluminized Steel Tubing or Hot Rolled

Reflector and End Caps

.024 Aluminum (Optional- .024 Stainless Steel Type 304) 

Control System

Fully Automatic, Three-Try, 100% Shut-off, Direct Spark Electronic Ignition Control 


ANSI Z83.20 / CSA 2.34, 2.17


Three Year Limited 

 *Clearances to Combustibles applies to heater hanging horizontally. Dimension listed for distance below heater.

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(Formerly VANTAGE® NP)

PDF Icon Specification Sheet PDF Icon Installation Manual