I am an ME, looking for resources or advice to assist my team in designing an ohmic heat source. The device will transport hot air with a small fan. We will be utilizing a 120VDC power source. This heater must produce temperatures in the range of 500-1000F. We are anticipating using a wire geometry similar to the resistance wire in a blow dryer or heat gun. Are there any standards for wire gauge/cross section, or suggested wire materials to achieve maximum heat transfer? Any advice and/or external resources would be appreciated.