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Lochinvar Cheers Great Western Arms’ LPG/Air Source Heat Pump Upgrade

A traditional Oxfordshire pub and restaurant can offer a warm welcome in more ways than one thanks to a heating system from water heater and boiler manufacturer Lochinvar.

The Great Western Arms at Aynho near Banbury recently added five bedrooms as part of a major refurbishment. This work included the upgrade of its heating and hot water systems, replacing the old cast iron boiler and indirect hot water cylinder with high efficiency equipment.

Hot water for the Hook Norton Brewery-owned pub is now provided by an air source heat pump working in conjunction with a Lochinvar EcoForce+ gas-fired condensing water heater running on lpg supplied by Calor Gas.

The heat pump converts the ambient outside air into hot water, which is used to preheat the feed water to around 40°C and, at this temperature, the heat pump operates with a COP of 3:1 – in other words, for every kW of heat input, the heat pump generates 3kW of output. The EcoForce water heater then raises the temperature to the required 65°C, but savings on lp gas are achieved due to the feed water being preheated.

A traditional radiator system and a Lochinvar CP-M 60 boiler provide space heating for the new bedrooms and the existing pub and restaurant. An EBC controller was used, which allows for ‘zoning’ of different areas of the premises and enables the boiler to operate at its highest efficiency.

David Pepper, managing director of Lochinvar, said: “The air source heat pump and water heater package is a really good solution for commercial applications, like the Great Western Arms. Combining the use of the low carbon heat pump technology, a condensing lpg gas-fired water heater has provided an efficient, environmentally friendly solution without compromising hot water supply. The use of separate plant for space heating and hot water is widely recognised as good practice in terms of energy conservation, and this has also been achieved on this project.”

David Moore Associates, a Banbury based Chartered interior designer, developed the overall refurbishment scheme for its client Hook Norton Brewery and was keen that the design should be environmentally friendly.

“We are delighted that Lochinvar has been able to bring its specialist knowledge and advice to this project by designing and supplying the energy efficient water heating installation, contributing to the overall improvement made in the energy efficiency of this facility,” said David Moore.

Contact Lochinvar on 01295 269981 www.lochinvar.ltd.uk