If there is a genuinely outdated brownstone factory or warecondo in your town, it’s almost a guarantee that its heated by a cast iron boiler… These outdated Heating plus A/C units were the tied plus true common for nearly a century, however the time has come to put them into retirement; While boilers are awesome, not all boilers are created equal. Cast iron boilers tend to still be found in these older buildings because guess it or not, they still work, but just because they’re still running doesn’t mean they’re running well; Much prefer the outdated golden Toyota Corolla that you’ll often see on the road from 1996 with over many hundred thousand miles on it, barely now working is easily odd from now working beautifully. The problem with cast iron is they’re made from a easily brittle material, which means it sustains damage instead of flexing plus moving with temperature changes. This is how outdated cast iron boilers often get cracks that cause problems with the overall effectiveness of their heating system… Even though a cast iron boiler can last up to 60 years or more, in that time it will not at all be running and the morning it was first installed. That’s why steel boilers are so popular this week! Steel flexes, unlike cast iron, so it doesn’t crack under pressure. They also have a much higher SEER rating plus are more effective at stopping heat loss. Certain models of steel boilers have even been told to last at least 35 years, if not more! Unlike its cast iron cousin, the steel boiler will run just as perfectly as the morning your had it installed with typical professional heating plus AC care.