What are the advantages of instantaneous water heaters over stored DHW systems?
DHW heating van be at point of delivery from a store of hot water. Stored DHW solutions are mostly DHW cylinders that are heated by the central heating system – a heat pump or the oil or gas burner. In this case, heat is lost from the cylinder and the run of pipe. The actual energy efficiency of the system usually only comes to light in the end-of-year bill. This is because many cost factors, such as DHW circulation, cylinder losses, standby energy losses and distribution losses result in high energy consumption. Such factors are seldom recognised as DHW costs. If these hidden costs are also taken into account, then electric point of use DHW heating systems are often more economical than stored systems. This has been verified by various different studies.
Point of use DHW provision offers many benefits:
1. Space saving
You don't a large water cylinder in your property, freeing up space for storage.
2. Energy saving
Short pipe runs, due to installation directly on site, ensure that heat loss is reduced to a minimum. This saves energy and protects the environment.
3. Water saving
Short pipe runs also mean that there is no cooled water in the supply line, which needs to run off unused when hot water is drawn. If it is drawn directly at the source, no precious water is lost.
Since point of use electric DHW appliances utilise all the energy, they make for a particularly economical system.
5. Easy to fit
Our DHW appliances for point of use are quick and easy to install – even when replacing older appliances. This limits expenditure and saves time.
6. Accurate billing
In apartment buildings, the possibility of accurate individual billing is very much appreciated. Everyone pays for what they use – not a penny more.