What is the primary concern with the installation of washout plugs on a miniature boiler?

The primary concern with the installation of washout plugs on a miniature boiler is to ensure safety and operational efficacy. Washout plugs are critical components that allow for the drainage of sediment and scale that can accumulate in the boiler. If these contaminants are not properly removed, they can lead to corrosion and overheating, which poses significant safety risks to both the boiler and the personnel operating it.

Installing washout plugs ensures that the boiler can be maintained in a safe condition, thus preventing potential failures or accidents during operation. Regular maintenance facilitated by these plugs helps ensure that the boiler operates efficiently, reducing the risk of system malfunctions that could lead to dangerous situations.

While facilitating easier maintenance is an advantage of washout plugs, the primary concern lies in safety and ensuring that the boiler operates effectively without the risk of malfunction due to build-up or contamination. The other options—maintaining aesthetic value and improving heating efficiency—are secondary or less critical aspects compared to the fundamental role that washout plugs play in boiler safety and efficacy.