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MR-750 Venturi Burner

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Manufacturer: GACO
Part No: MR-750

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Ceramic Kiln MR-750 Gas Venturi Burner SOLDOUT

The MR750 is an affordable and compact Venturi burner suitable for high fire kilns, furnaces, or Raku kilns It features flame retention within a one piece design. It is rated at 77,400 BTUs operating on propane @ 11" WC. Natural gas @ 7" WC produces 78,440 BTUs. Be aware that these BTU figures are based on a set orifice sizes provided by the manufacturer for use at low pressure at the Water Column pressures mentioned below.. 
 
If you are using high pressure propane (1 PSI or above), which is a popular choice in some Raku kilns, you will need a nonstandard orifice, and must drill out a blank orifice which will ship with the burner. 

Please select one of the above ORIFICE choices
  • MR-750 with Blank Orifice (You will drill your own)
  • MR-750 with #28 Drill for NG (Natural Gas)
  • MR-750 with #38 Drill for LP (Liquid Propane)
Base of the burner has a 1/2" male brass fitting.
 
 
 
Btu/NG
Btu/LP
Model
7"wc
11"wc
2psi
3psi
4psi
5psi
6psi
7psi
8psi
MR750
78,440
77,400
76,880
94,500
109,250
122,100
133,950
141,950
152,100

NOTE: The above Btu values can be increased with increases in pressure, but the MR Series of burners may be subject to less efficiencies at pressures greater than 10 psi. It is not recommended to run this burner at any higher pressure.
 

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