| 摘要 |
<p>A gas fired burner apparatus including a housing (2) containing a burner (3) for combustion of a fuel/air mixture for heat transfer therefrom, the housing including an interior air supply region for receiving ambient air for delivery as primary air in a combustible fuel/air mixture to said burner, said air supply region being located within said housing in heat transfer proximity with said burner, and primary air temperature control means to positively control the temperature range of the primary air delivery to said fuel/air mixing means so as to reduce pre-heating effects on the primary air due to operation of the burner apparatus when compared with an identical apparatus not having said temperature control means.</p> |
