HIGRADE BOILER #24-10

john t colao

WOULD LIKE TO OBTAIN INFORMATION ON A HIGRADE BOILER #24-10-----WHICH WAS ORIGINALLY A COAL FIRED STEAM BOILER INSTALLED IN 1905,EITHER THE CAPACITY OF THE UNIT OR THE MANUFACTURER WHERE I CAN ASCERTAIN SAME.

Steamhead

According to the Hydronic Rating Handbok

the Higrade was made by Thatcher. They don't show that model number though, and I believe Thatcher is long gone.

Keep in mind however- many old steam boilers were oversized so they could hold more fuel on the grate.... this meant the owner didn't have to shovel coal more than once or twice a day.

If you want to replace that old boiler, it's far better to measure up all the radiation in the building and use this figure to select the right size boiler. Get a copy of Dan's "E.D.R." book for radiator sizing charts- I believe there are some Thatchers in there. Also a copy of "The Lost Art of Steam Heating" for an in-depth look at the system you're working with.

If you come across something that isn't in the book, take a picture and post it here. We can probably identify it.

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