Good modern boiler

 ✅ Desirable features of a good modern boiler:

1. Quick start-up capability
   – Should be able to start and reach operating pressure quickly.

2. Ability to meet large load fluctuations
   – Should respond efficiently to sudden changes in steam demand.

3. Compact design
   – Occupies less floor space, making it suitable for limited area installations.

4. Ease of maintenance and inspection
   – Should have design features allowing easy cleaning, servicing, and examination.

5. High efficiency
   – Capable of producing the maximum steam output with minimum fuel consumption.

6. Lightweight and simple construction
   – Facilitates installation and reduces structural support requirements.

7. Accessible and protected joints
   – All joints should be easily accessible for inspection and should not be exposed directly to flame.

8. Strong, durable tubes
   – Should withstand wear, corrosion, and thermal stress over prolonged use.

9. Clean heated surfaces
   – Should be designed so mud, scale, and other deposits do not accumulate on the heating surfaces.

10. Controlled fluid velocities
    – The velocities of water and flue gas should be optimized (generally kept low) to reduce erosion and improve heat transfer.