The Arsenal is one of only two parks department buildings that take heat from the district steam system run by Consolidated Edison. The problem was it was taking two hours for steam to reach the radiators once it had passed through the PRV station, which had people very upset.

The Tetra radiator is comprised of several individual heating masts that join together to form a single heating unit. 

I was having a conversation the other day with Ara Marcus Daniels, author of many plumbing books, who is quite dead. I do such things because I have time on my hands and not much of a life.

Each unit has additional flexibility with sizing and color options – the Panel Plus comes in more than 1,190 sizes and 70 different colors, allowing it to blend in with any interior or stand out as a striking contrast piece.