Stainless Steel Standard Patio Heater

stainless steel
A form of steel containing chromium, resistant to tarnishing and rust
In metallurgy stainless steel, also known as inox steel or inox from French "inoxydable", is defined as a steel alloy with a minimum of 10.5 or 11% chromium content by mass. Stainless steel does not stain, corrode, or rust as easily as ordinary steel, but it is not stain-proof.
(Stainless steels) Steels that are corrosion and heat resistant and contain a minimum of 10% to 12% chromium. Other alloying elements are often present.
steel containing chromium that makes it resistant to corrosion

patio heater
A patio heater (also called a mushroom or umbrella heater) is an appliance for generating radiant heat for outdoor use.

standard
conforming to or constituting a standard of measurement or value; or of the usual or regularized or accepted kind; "windows of standard width"; "standard sizes"; "the standard fixtures"; "standard brands"; "standard operating procedure"
criterion: the ideal in terms of which something can be judged; "they live by the standards of their community"
A required or agreed level of quality or attainment
A level of quality or attainment
An idea or thing used as a measure, norm, or model in comparative evaluations
a basis for comparison; a reference point against which other things can be evaluated; "the schools comply with federal standards"; "they set the measure for all subsequent work"