Quick Answer: Searle's Thermal Conductivity Apparatus has a cylindrical copper rod, 30 cm long, heated at one end by a steam jacket and cooled at the other by water flowing through a spiral tube. The rod sits in a felt-lined wooden case, and 3.7 cm, 2.5 cm and 1.8 cm diameters are listed.
Last updated: October 2026
Key Features
Cylindrical copper rod, 30 cm long
Rod diameters listed: 3.7 cm, 2.5 cm and 1.8 cm
Steam jacket at one end for heating from a boiler
Spiral tube at the other end carries cooling water
Wooden case lined with felt, with a removable front portion
Supplied without thermometers and steam boiler
Technical Specifications
Specification
Value
Rod
Cylindrical copper
Rod length
30 cm
Rod diameter
3.7 cm / 2.5 cm / 1.8 cm (three sizes listed)
Hot end
Steam jacket, heated from a boiler
Cool end
Spiral tube with flowing water
Case
Wooden, lined with felt, front portion removable
Not included
Thermometers, steam boiler
About This Product
In this Heat apparatus the copper rod is warmed at one end by a steam jacket fed from a boiler, while water running through a spiral tube keeps the far end cool, the arrangement used for thermal conductivity measurement. The front of the felt-lined wooden case lifts away for access, and thermometers and boiler have to be provided separately.
Frequently Asked Questions
Q1. What rod sizes are listed for Searle's Thermal Conductivity Apparatus? The rod is 30 cm long and is listed in 3.7 cm, 2.5 cm and 1.8 cm diameters.
Q2. Is a steam boiler included? No. The apparatus is supplied without thermometers and without the steam boiler.
Our export customers include schools, colleges and dealers in Vietnam, Bahrain, the Central African Republic and Saint Lucia.
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