This venturi burner is complete with a flame retention feature within a single casting. The overall length of this burner is 8", and the range of BTU's spans from 17,490 BTU minimum to 78,440 BTU maximum
An affordable and compact Venturi burner suitable for high fire kilns, furnaces, or Raku kilns. It features flame retention within a one piece design. The overall length of this burner is 8". Outside diameter measures 2.5" and interior diameter measures 1.7". Pipe at end of burner has a 1/2" IPT thread. It is rated at 77,400 BTUs operating on propane at 11" WC. Natural gas at 7" WC produces 78,440 BTUs.
| BTU/NG (#28 orface) | BTU/Propane gas (#50 oriface) | |||||||
| 7"wc | 11"wc | 2psi | 3psi | 4psi | 5psi | 10psi | 15psi | 20psi |
| 78,440 | 77,400 | 76,880 | 94,500 | 109,250 | 122,100 | 171,910 | 210,555 | 243,130 |
The BTU values listed above can be increased with increases in pressure, however this burner may be subject to less efficiencies at pressures greater than 10 psi.