When the only energy source available is electricity, a direct pattern cylinder is the ideal product. The domestic water is "directly" heated by the immersion heaters which sit inside the 2" 1/4 boss within the cylinder. However, the heat-up and recovery times take longer than an indirect cylinder.
Extra immersions are available on request.Telford.
Please note - Vented Cylinders are not supplied with an immersion.
Making the decision on the right type of Cylinder is a key decision. When you decide that Direct Combination Cylinders give the right answer then the Telford Direct 110L Combination Cylinder - BCD09045VF is definitely worth seriously thinking about.