Or – Why heaters come in different sizes
Every application requiring hot air has its own design requirements. Ideally, these requirements will guide the designer to the right heater for the job. Unfortunately, many times design decisions are made based on price or with a “bigger is better” mentality.
Looking at Leister’s line of air heaters you may notice that while the heaters range in power from 550W to 16kW they all have a maximum operating temperature of 650°C. We’ve written previously about the difference between temperature and heat and why the power rating of the heater is the critical specification when sizing a heater.
The following are a few of the questions a designer should answer when choosing a heater: