Safety is not fully realized by most customers. There is a reason Reimers builds electric boilers under the approval of ASME, UL and other agencies. A boiler is capable of holding pressure and hot water and steam and that's where it needs to stay, ready for being called upon. Manufacturers that avoid 3rd party auditing may be fabricating a design that will fail unexpectedly and harm people or property.  Performance is not always equal to the rating. Factors like steam chest design, water surface, and controls may limit or create undesired results. Reliability is proven, like Reimers over 100 years in the industry. Support is available from dealers and Reimers website. Versatility is offered by Reimers in multiple voltages and KW and tanks are available for energy retreival.