subject: Combi Boilers Offer Considerable Efficiencies [print this page] Combi boilers or combination boilers are effective and ingenious space-saving idea that is an increasingly popular choice for homes in United Kingdom. In fact, combis now account for more than 80% of all the new domestic boilers installed in Britain every year.
Combi boilers are both a high-efficiency water heater, and a central heating boiler, combined in one compact unit. No separate hot water cylinder is required, which saves a considerable amount of space, while supplying the comforts of central heating. With combi boilers installed, heated water is delivered instantly, and unlike conventional systems, no hot water is heated and stored ,but is delivered as needed to taps and showers, and the same heat is distributed to the air circulating system. The water is fed from the mains, so the water pressure is generally greater.
Another benefit is a great saving on the cost associated with installation. Since there is no tank to be installed on the roof, and less piping is needed, there is significant reduction in the time and cost of installation.
With combi boilers, you do not need hot water cylinders, loft tanks, or additional pipe work, as the water is heated on demand from within the unit itself, Combis are like standard unvented boilers, but they have a second heating circuit, which is used to instantly heat the water whenever it is needed. As long as the boiler is operating, an unlimited supply of hot water can be fed directly from the main water supply to the heat exchanger.
Combi boilers are compact and they can be conveniently hung on a kitchen wall. Installation is considerably less disruptive and expensive than that of conventional boilers.
In properties where space is limited, combi boilers may make sense, as no separate storage water tanks are needed. With multiple bathrooms, storage systems may be advantageous. The standard combi boilers heat can heat water in about 40 seconds. The rate at which hot water is delivered may be slightly lower than that of conventional boilers, but hot water is nevertheless, delivered through water distributing system at mains pressure. This means that you can still enjoy a high pressure "power" shower without the need for additional pumps.
With a combi unit, you'll save on hot water costs and, you can be protected from sudden fluctuations in water temperature, with a thermostat controlling your shower temperatures when the hot water is delivered from the mains supply. If instantaneous hot water is needed and space is at a premium then combi boilers could be the right choice for you.
A boiler that is over 10 years old, it should be replaced for one that is more efficient. Considerable benefits can be derived from lowering your heating costs, and a reduced energy footprint is left on the environment.
The only apparent disadvantage is that an adequate supply of cold water is needed to supply hot water on demand. If a large number of taps or showers are using hot water simultaneously, then the flow to each one is reduced. Consequently, if the mains water supply pressure is not adequate, or you have sudden pressure fluctuations, this type of boiler may not be suitable for you.
Combi boilers are a high-efficiency and cost -efficient and alternative to conventional heating systems. Combi boilers are increasing in popularity and are also space savers that are less costly to maintain and operate.
