It's not worth it! No two coils are alike! Some take over 3A current and fry in 2 hours of operation, some 1.7A, some 2.5A. Of 4 pcs. bought, one burned in less than 2h, one warms to over 100 degrees Celsius, and two to 85-90 degrees Celsius. In the end, I bought Parker! It's true that they are not stainless steel but bronze. The price (excluding VAT) is 20% higher but they do not heat more than 40 degrees Celsius (it take max. 1A current). Just waste time and money!