Central Heating System, Cold Water Tank

	Feed and Expansion Tank	22mm Open Vents
	Feed and Expansion Tank	Cold Water Tank
		Cold Water Tank

Overflow			Overflow
			Overflow
			Domestic Hot Water Draw Off
Gravity Radiator
	Gravity Return 28mm	Gravity Flow 28mm	Drain Cock
			Indirect Hot Water Cylinder
			High Limit Thermostat
Low Limit			Central Heating Flow
Thermostat			Circulating Pump
			Circulating Pump

Central Heating Return

Drain Cock at Lowest Point

Fig. 4. Typical Central Heating & Hot Water System

Using 4 Boiler Tappings

22mm Open Vents

inches) each side and 300mm (12 inches) above the appliance should give sufficient air circulation. If a wooden mantelpiece or beam is used in the fireplace it should be a minimum of 460mm (18 inches), and preferably 600mm (24 inches) from the appliance. In some situations it may be necessary to shield the beam or mantelpiece to protect it.

CENTRAL HEATING

SYSTEM

The central heating system must comply with BS:5449 part 1.

If the system is to be a combined heating and domestic hot water system then a double feed indirect hot water storage cylinder to BS:1556 part 1 should be used. In order to prevent the build up of scale and corrosion a suitable inhibitor should

Feed and Expansion Tank

Overflow
Gravity Radiator	Return 28mm	Flow 28mm
	Return 28mm	Flow 28mm
Low Limit Thermostat	Gravity	Gravity
Circulating Pump
Central Heating Return
Drain Cock at Lowest Point

Cold Water Tank

Overflow

Domestic Hot Water Draw Off

Drain Cock

Indirect Hot Water Cylinder

High Limit Thermostat

Central Heating Flow

be used. The system must be correctly vented as shown in Figs. 4 and 5. The height differential between the header tank and the appliance must not exceed 15.2 metres (50 feet).

If all four boiler tappings are used then, if possible, diagonal pairs should be connected for domestic hot water and central heating. Where a common return is used an injector tee must be incorporated into the system as shown in Fig. 6. This will ensure that a good domestic hot water supply is maintained when the central heating pump is operating.

The system must incorporate a gravity circuit which will normally

Injector Tee

Fig. 5. Typical Central Heating & Hot Water System

Using 3 Tappings

Gravity Return

(28mm Pipe)

Central Heating Return	Common Return to Boiler
	(28mm Pipe)

Fig. 6. Injector Tee.

Page 7

heat the domestic hot water and an unvalved radiator with an output of at least 1 kW. When the appliance is not connected to a domestic hot water system the unvalved radiator(s) on the gravity circuit must have an output of at least 1.25 kW. This is to prevent boiling in case of pump failure. All pipework in the primary circuit must be 28 mm diameter and the gravity flow pipe must rise continuously from the boiler to the open vent. Two typical systems are shown in Figures 4. and 5.

Country 8B WB 10/00

Country 8B specifications

Charnwood Country 8B is a remarkable initiative situated within the scenic and dynamic landscape of Charnwood, a district in Leicestershire, England. This project stands as a striking example of how thoughtful planning and innovative technology can converge to create a sustainable and eco-friendly environment.

One of the main features of Charnwood Country 8B is its commitment to preserving the local natural beauty while promoting community living. The development is characterized by its integration into the surrounding countryside, with designed pathways for walking and cycling that encourage residents to engage with the outdoors. The layout promotes a sense of community, with green spaces, parks, and recreational facilities that foster social interaction among residents.

In terms of technology, Charnwood Country 8B incorporates smart infrastructure to enhance the quality of life for its inhabitants. This includes smart energy solutions such as solar panels and wind turbines that provide renewable energy sources for the community. The buildings in this area have been constructed with energy efficiency in mind, employing advanced insulation techniques and energy-efficient windows to minimize energy consumption.

Another significant characteristic of Charnwood Country 8B is its emphasis on sustainable transportation options. The development promotes the use of electric vehicles, with charging stations strategically placed throughout the community. Public transport links are also prioritized, ensuring residents have access to efficient commuting options without reliance on personal vehicles.

Water management technologies play an essential role in maintaining the sustainability of Charnwood Country 8B. This includes the use of sustainable drainage systems (SuDS) that manage rainwater efficiently, reducing the risk of flooding while enhancing the local ecology.

Charnwood Country 8B brings together innovative technologies and sustainable practices harmoniously, making it a model for future developments. Its focus on community, sustainability, and technological advancements showcases the potential for creating attractive living spaces that respect and enhance the natural environment. This initiative not only serves the needs of today's residents but also considers future generations, ensuring a lasting positive impact on the community and the surrounding ecosystem. The development stands as a testament to progress, environment, and family living, embracing a holistic approach to modern life.