Which method is considered best for supporting an HRT boiler?

Suspending the HRT (High-Rate Thermal) boiler from hangers with overhead support is regarded as the best method for several reasons. This approach allows for optimal load distribution, reducing the risk of structural failure that may occur from uneven weight distribution on the boiler's base. By suspending the boiler, it can also accommodate thermal expansion and contraction, which is crucial in maintaining the integrity of the boiler system and its components.

Additionally, this method allows for easier access to the boiler for maintenance and repairs, as it provides space underneath. It also keeps the boiler above ground level, which can be beneficial in preventing potential water damage and makes it less susceptible to issues caused by ground movement or settling.

In contrast, other methods may not provide the same level of support or flexibility. For example, placing the boiler directly on the ground can lead to uneven wear or difficulty in maintenance. Using a frame built around the boiler might limit access and may not be as effective in distributing weight. Setting the boiler on saddles equipped with rollers, while it allows for movement, may not provide the structural stability and support required for safe and efficient operation.