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Original Boiler - 1919
Alan (California Radiant) Forbes
Member Posts: 4,214
and still running. A "Universal Water Heater", manufactured by the Rotary Manufacturing Company out of Los Angeles, CA.
I've never seen this manufacturer before. This one serves a 6-unit apartment building in Oakland and we will be replacing it with a Prestige Solo 175.
I've never seen this manufacturer before. This one serves a 6-unit apartment building in Oakland and we will be replacing it with a Prestige Solo 175.
8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour
Two btu per sq ft for degree difference for a slab
Two btu per sq ft for degree difference for a slab
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Comments
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Rotary doesn't appear
in Beacon or Hydronic Rating Handbook- it may have been a small company that only sold boilers in that area. Must be a heck of a burner head in there- did you check it for CO by any chance?All Steamed Up, Inc.
Towson, MD, USA
Steam, Vapor & Hot-Water Heating Specialists
Oil & Gas Burner Service
Consulting0 -
Love those old boilers
Can you read the "notice to fitter" part of the mfg's plate? It's hopefully good advice.-- NBC0 -
Whoops
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Whoops 1
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Nameplate
It looks like it says "Use not less than (Size of pipe?) Inch flow & Return"0 -
I'll check
the CO and fine print when I go back.
Both the supply and return tappings are 2"; one supply and two returns. There is a return manifold at the bottom of the boiler that looks like a twin ell.8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour
Two btu per sq ft for degree difference for a slab0 -
Nice find!
I looked in Pape-Swift, the Hydronic Rating Handbook, my files and old books and couldn't find this one. It's remarkable how long it lasted. Thanks for sharing, Alan.Retired and loving it.0
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