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QTD Series – Dual-Stage, Multi-Burner, Low Intensity Quad Tube Heater

Premium Models

MP – Modulating Series

HL3 – Two Stage Series

DX3 – Single Stage Series

Standard Models

DET3 – Two Stage Series

DES3 – Single Stage Series

Residential Garage

LD3 – Two Stage Series

LS3 – Single Stage Series

Specialty Models

SS – Stainless Steel Series

QTD – Two Stage Quad

QTS – Single Stage Quad

QTD Series – Dual-Stage, Multi-Burner, Low Intensity Quad Tube Heater

QT-Iso-Illustration


The patent pending two-stage QTD Series offers a unique and innovative heating solution. Its design incorporates the modular benefits of high-intensity infrared with the application versatility of low-intensity infrared. Distinctive construction features include a multi-burner, multi-exchanger, multi-reflector platform optimized for a broad and even heat output pattern. The enhanced two-stage feature of the QTD Series increases comfort levels while reducing energy costs. CSA Design Certified for indoor or outdoor applications, the QTD Series provides the right choice for a wide variety of applications.

FeaturesSpecificationsLiteratureParts & AccessoriesFAQBuy
QTD_Patio1QTD_Entry

  • Compact, aesthetically pleasing construction.
  • Easy to install with minimal assembly required.
  • Proven fuel savings.
  • Multiple construction features including: dual spark ignition, highly emissive heat exchangers, highly polished aluminum reflectors, operational indicator lights, and more.
  • Designed and packaged for ease in transportation.
  • CSA Design Certified for both indoor and outdoor use and to Agricultural and Commercial/Industrial Standards.

 

Product Features

QTD_Product_Features

Typical Applications

 

  • Restaurant Patios
  • Bus Stops
  • Golf Ranges
  • Check-in/out Areas
  • Vestibules
  • Entrance Ways
  • Smoking Areas
  • Valet Waiting Areas
  • Work Stations
  • Spot or Total Building Heat

 

 

 

Input Range: 60,000 to 80,000 BTU/h
Lengths: 107″
Gas Type: Natural or Propane
Burner Control Box: Coated Enameled Steel
Radiant Emitter Tubes: Coated Aluminized Steel
Certification: CSA Design Certified
Warranty: 1-3-5 (Components-Tubes-Burner)
Outdoor Approval: Optional OD-KIT Add-On
24V Controls: 4000-01V External transformer required for controlling multiple units with a single control.
Operational Indicator Lights: Standard


 

PRODUCT SPECIFICATIONS
ELECTRICAL
• 120V/1 Ph,/60 Hz.
• Starting amps – 1.5.
• Running amps – 1.1.
• 24V burner input w/ 24V field
select output switch.
INTERNAL CONTROLS
• Two-stage gas valve.
• 3-try dual spark ignition.
• Safety pressure switch.
• Self-diagnostic w/ LED.
• Pre & post purge controls.
TUBE CONSTRUCTION
• 2.25”O.D.,16 ga. aluminized
steel construction.
• All tubes coated with high
temperature, corrosion
resistant black coating, .95
emissivity.

 

APPROVALS
• Indoor/Outdoor.
• Commercial/Brooder.
REFLECTORS (4)
• Highly polished aluminum.
• Multi-facet design.
• Pre-set angle for optimal output.
VENTING
• 4” single vent.
• Sidewall or roof venting.
COMBUSTION AIR
• Preset 4 in. combustion air inlet
collar.
GAS CONNECTION
• 1/2 in. x 24 in. stainless steel flex.
• 1/2” F NPT ball valve & inlet tap.

GAS PRESSURES
• Manifold:     3.5” NAT or 10.0” LP
• Min. Inlet:     5.0” NAT or 11.0” LP
• Max. Inlet:     14.0” NAT or 14.0” LP

KIT CONTENTS
• 4” vent adapter fitting.
• 81” x 4” spiral vent pipe.
• 24” flexible gas connector.
BTU Range: 60,000 to 80,000 BTU/h
Lengths: 107”
Gas Type: Natural or Propane
Burner Control Box: Coated Enameled Steel
Radiant Emitter Tubes: Coated Aluminized Steel
Certification: CSA Design Certified
Limited Warranty: 1-3-5 (Components-Tubes-Burner)
Outdoor Approval: Optional OD-KIT Add-On
24V Controls: 4000-01V External transformer
required for controlling multiple
units with a single control.
Indicator Lights: Standard

 


 

AVAILABLE QTD MODELS & CLEARANCES

CLEARANCE TO COMBUSTIBLES**
Model #

GAS TYPE

MBH HIGH/LOW

Overall Length Weight Recom. Mtg.Heights TOP SIDES BELOW BACK END
QTD-60N Natural 60 / 40 107″ 103 lbs 8′ to 12′ 10 36 40 6 12
QTD-60P Propane 60 / 40 8’ to 12’ 10 36 40 6 12
QTD-80N Natural 80 / 50 10’ to 14’ 10 36 40 6 12
QTD-80P Propane 80 / 50 10’ to 14’ 10 36 40 6 12
*     Recommended mounting heights are provided as a guideline. Actual conditions, such as outdoor or spot heating,
may dictate variations from this data.
**     Clearances published in QTD Series manual and on warning label supersede data shown on this brochure.QTD_Clearance_Diagram

QTD Series

LBQTD_QTD-Series-Brochure_8-12_th  qtd_manual_th
Brochure QTD Series Manual
LSQTD_QTD-Submittal_2clr_5-12_th lpkqt_2013-14_QT-Heater-Packing-List_7-13_r1_th
Submittal
Packing List

 

Tab Content 3.

 

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