Heater Details and Specifications

Northern Lights Patio heaters are designed for outdoor use through the use of heat-treated aluminized steel infrared emitters for maximum efficiency and dependable output of heat.

Rating (Input: natural and L.P. Gas) 0-4,500 ft. elevation

Input (BTU / hr.) Min Max Length
PH-40 (high output) 20,000 40,000 5’
PH-75 (high output) 37,000 75,000 10’

Gas Pressure at Manifold:

Natural gas 3.5” W.C.
Liquefied petroleum gas 10.5” W.C.
Gas connection size 0.5” N.P.T.

Gas Inlet Pressure:

Minimum Maximum
Natural gas 4.5” W.C. 14.0” W.C.
Liquefied petroleum gas 11.5” W.C. 14.0” W.C.

Electrical Rating:

  • DSI Ignition
  • 120v, 60 Hz, 1 Amp/ 24 Volt Power Supply
  • 24 volt low voltage On/ Off- Hi/ Lo Control Panel

Standard Equipment:

Burner control housing is pre-assembled and pre-wired. Unit comes complete with industry standard gas, electrical, balanced air rotor, thermal overload protected motor, visual burner inspection sightglass, combustion and air proving safety switch, 3-try spark ignition control, 100% safety shut-off, low voltage control connection, 4″ heat treated aluminized combustion tube, aluminum standard reflector, tube couplers, heat economizer baffle, stainless steel hangers, decorative grille, indicator light, stainless steel burner head construction.

Optional Equipment:

  • 90 degree elbow kit (PH50 & PH75 only)
  • 180 degree “U-Bend” kit (PH75 only)
  • All stainless steel construction
  • Perimeter Post & Trac System (Patent Pending) available