Heat resistant combustion element

Heat transfer device

Heater with zone-controlled radiant burners

Heating apparatus

High intensity, low NO.sub.x matrix burner

High temperature surface combustion burner

High turndown sheet metal atmospheric gas burner

Hot gas spray pistol

Ignition stage for a high temperature combustor

Induced air catalytic burner, and apparatus incorporating such a

Infra-red apparatus

Infra-red combinations

Infra-red domestic furnace

Infra-red equipment

Infra-red equipment and use

Infra-red generation

Infra-red generation

Infra-red generator

Infra-red generators and matrix therefor

Infra-red generators and use