26. WATER CONNECTIONS

Heating systems

The size of the heating system, which can be run, will depend on the output rating of the appliance. It will be necessary to work out heat loss calculations for the system envisaged in order to establish the kW/hr rating. An appliance that will meet this figure can then be chosen; (for boiler outputs please refer to the brochure).

The constructional requirements of installing and connecting the appliance also need to be taken into account when selecting. Design and calculations for individual heating systems should be carried out by a qualified heating engineer. In many cases your supplier will be able to offer advice and assistance.

Direct systems

Stainless steel boilers, either factory fitted or retro-fitted as add-in boilers enable connection to direct systems to be made without the need to change the cylinder or to fit an expansion tank. This applies to domestic water supply only and should not be done when in an area with soft water. If radiators are used then an indirect system must be utilised.

To connect the cylinder use 28mm copper pipes. Ensure that the pipes rise continuously to the cylinder.

Ensure that the runs are not too long, i.e. 6.1m (20ft) maximum each for flow and return.

Install the cylinder above the level of the fire, and as close to it as possible. (the higher the cylinder the faster the circulation).

Ensure that no valves are present in the circulating pipes.

Indirect systems - The Domestic Hot Water Circuit

In addition to providing hot water the primary circuit is essential in providing a "heat leak" to absorb excessive heat produced in the event of the circulation pump shutting down.

Heat is produced in varying quantities while the fire is alight and care must be taken to ensure that effective circulation can occur around the primary circuit to carry heat away and thus stop boiling. The output of any radiator installed as a "heat leak" should not be less than 10% of the rated output of the appliance. The radiator should not be fitted with a control valve.

The cylinder must be of the indirect type with a minimum capacity of 110 litres, conforming to BS 1566 part 1. Primary flow and return pipes should be 28mm diameter. The cylinder should be installed at a higher level than the appliance, and as close to it as possible (the higher the cylinder the faster the circulation). The flow and return pipes should not be longer than 6.1m (20ft) each. Pipe runs should rise continually from the boiler to the cylinder. A radiator of approximately 25 sq.ft. should be connected into the primary circuit, if installed in the bathroom it provides a means of dying towels in the summer.

Safety vent circuit

This circuit consists of a cold feed pipe, expansion pipe, and expansion tank. The possibility that water may boil can never be completely ruled out, and it is therefore vital to ensure that cold water can be supplied to the boiler and steam vented from it at all times.

The expansion tank should have a capacity of at least 7 % of the system's water capacity. The cold water feed pipe should be at least 22mm diameter.

There must not be any shut off valves in the circuit. Pipes should be run to avoid air locks.

A spring safety valve should be fitted to the expansion pipe close to the boiler.

It is often possible, and is good practice, to utilise the primary flow and return as part of the safety circuit. The ball valve should have a copper ball.

The overflow pipe from the expansion tank should be 28mm diameter copper. Pipes in unheated spaces must be lagged.

27. FINAL CHECK

Before handing over the installation to the customer it is strongly recommended that the appliance is lit and the functioning of the chimney, hot water and heating system is checked.

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Aarrow Fires SF 50 operating instructions Water Connections, Final Check
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SF 50 specifications

The Aarrow Fires SF 50 is an elegantly designed wood burning stove that embodies both functionality and aesthetic appeal. With its sleek lines and contemporary form, the SF 50 serves as a stylish focal point for any room, making it an ideal choice for modern homes.

One of the standout features of the Aarrow Fires SF 50 is its impressive energy efficiency. Utilizing advanced combustion technology, the stove maximizes heat output while minimizing smoke emissions. This efficient design not only provides a warm and inviting atmosphere but also reduces the environmental impact of burning wood. The SF 50 has an efficiency rating that often exceeds 80%, ensuring that the majority of the fuel is converted into usable heat.

The stove is constructed using high-quality materials that ensure durability and longevity. The cast iron door not only adds an element of robustness but also enhances the stove's overall heat retention capabilities. The large glass window on the front door offers a captivating view of the flames, creating a cozy ambiance in any setting. The window is designed with cleanburn technology, which helps to keep the glass clear from soot, providing a beautiful view of the fire without the hassle of frequent cleaning.

Aarrow Fires has also integrated innovative air control systems into the SF 50. The primary air control allows for easy regulation of the fire, enabling users to manage the burn rate and extend the burn time when necessary. This user-friendly feature ensures that homeowners can enjoy a consistent and sustainable heat source throughout the colder months.

The SF 50 is compatible with a variety of flue systems, making it adaptable for different home layouts and installation requirements. It is available in several finishes, allowing homeowners to select a look that seamlessly integrates with their interior design. This versatility ensures that the stove can suit various tastes, from traditional to contemporary styles.

In conclusion, the Aarrow Fires SF 50 presents a perfect balance of elegance, efficiency, and technology. With its high energy efficiency, durable construction, innovative air control features, and aesthetic flexibility, it stands out as a premier choice for those looking to enhance their living space with the warmth and charm of a wood burning stove. Whether for a cozy evening or an extended winter retreat, the SF 50 offers a reliable and stylish heating solution.
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