U.S. Boiler Unclaimed
1 listing(s) in HVAC Builder's catalog from U.S. Boiler's published data, selectable in the builder and solved with the catalog's own figures. This page is listed by HVAC Builder from published data; U.S. Boiler has not claimed it.
- Radiators and emitters — 1
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Listings
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U.S. Boiler Baseray 9A cast-iron baseboard, per foot of active length (1 gpm)
Hydronic emitter rated per foot of active length: 0.122 kW at an excess of 63.9 K, exponent 1.238.
How the model reads against U.S. Boiler's data
| A hydronic baseboard rated per foot, against its maker's own table: the emitter's power law read from one printed column, the figure ÷ 1.15 and over 65 °F entering air, carried to every other water temperature by an exponent fitted on the printed columns | 18 water cells and the steam rating; 1 listing | listed at the 180 °F, 1 gpm column — 480 Btu/h a foot ÷ 1.15, 0.122 kW over 0.3048 m at 63.9 K — with n 1.238, the least-squares fit of all nine 1 gpm columns as printed against 65 °F (largest deviation of the fit 1.7 %), the model reads every 1 gpm cell within 3.2 % (+3.17 % at 150 °F: the listing holds the 180 °F cell as printed, 480, where the fit's line reads 473), on a run of one foot and of ten. The fit is the printed table's, not a measurement's: the sheet does not say which columns were tested, and from 170 °F up its 1 gpm row is a straight line, 5 Btu/h a foot per °F, which no power law draws. That fit stands over the model's default exponent (the owner's call of 10 Oct 2026, recorded with the data): at 1.3 the model would read the 1 gpm cells −0.8 to +5.1 %; which columns were tested is a question for U.S. Boiler. The model has no flow term, so it reads every 4 gpm cell 2.5 to 5.9 % under — the uplift the sheet prints and the model leaves out. In a room: the rating is over 65 °F entering air and the model reads Δt over the air entering the part, the room's in a building, so a 68–70 °F room reads 3.2–5.4 % under the tested rating at 180 °F average water and 4.9–8.2 % at 140 °F, which the listing's page states. Not modelled: the steam rating (860 Btu/h at 215 °F), which the sheet's own 3.40 sq ft of EDR does not give (816) |
From the validation page; every row is held by a test.
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