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Radiator Selection
Runtal offers a wide selection of "stock" as well as "made
to order" radiators. To size the radiators, it is necessary
to calculate a house's heat requirement. This calculation,
measured in BTU/Hour, should be done on a room-by-room
basis. Either a heating contractor or a qualified plumber
can do this.
Rules of Thumb for Regions of the Country
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New England, Upper Midwest, or Southern Ontario: 40 BTUH per
square foot of floor area
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New York City to Philadelphia: 40 BTUH
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Philadelphia to Washington, DC: 35 BTUH
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Seattle to Portland: 25 BTUH
Choosing the Radiator Style
First, determine the height and length of the wall
area you want to use for the radiator(s).
Second, divide the BTUH requirement of the room by
the total length of wall space chosen for radiator
placement. This will establish the BTUH per foot required.
Third, select a model which has a BTUH per foot
rating within ±10% of the level calculated for the unit
(Note that BTUH for the vertical panel is per foot of HEIGHT
while others are per foot of LENGTH).
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