It has two separate heat-transfer coils so two compatible sources can heat the stored water.
Twin-Coil Tanks for Two Heat Sources
MacBlair’s copper-water-cylinder category currently contains Albion twin-coil cylinders in three listed sizes: 900 x 450mm, 1050 x 450mm and 1200 x 450mm. A twin-coil layout is intended for two heat sources, such as a conventional boiler together with another compatible source, when the system is designed for both.
The product listing describes foam lagging and several possible coil arrangements and tapping options. Confirm the exact construction, grade and connection layout on the chosen product specification rather than assuming every option applies to every size. The boiler and secondary heat source must be matched to the cylinder and its controls.
Measure the cupboard opening as well as the position where the cylinder will stand. Pipe routes, service access and any immersion provision need checking before installation. The wider pipe fittings and plumbing and heating range cover other parts that may be required when a stored-hot-water system is renewed.
Copper Water Cylinders FAQ's
Compare hot-water demand with the exact capacity and dimensions of each model, and check access to the installation space.
No. Check the individual model’s coil layout, tappings and construction specification before ordering.
That depends on the model and system design. Have an installer confirm how any unused coil should be treated.
Yes. The heat sources, controls and safety arrangements should be specified and installed by competent professionals.