Case Study 1
The Salisbury, Covent Garden, London
Spirit managed house.
Situated in one of Covent Garden’s oldest listed buildings,
The Salisbury is a testament to Victorian largesse. The premises opened
as a pub over 100 years ago and boasts stunning Art Nouveau light fittings as well as great food, an impressive range of beers and bucket loads of character.
The pub’s listed status was a key reason for our involvement. The pub’s design and location meant that traditional cellar coolers, with large external heat dumps, were out of the question. The bar were using a water-cooled refrigeration unit, but because the water from it was going straight down the drain, so was around £8,000 per annum.
There was also the issue that the heat from the beer coolers was being pumped into an internal corridor in the premises, meaning that over the summer the temperature in this part of the bar regularly exceeded 40c.
The building was heated by a gas boiler, which provided hot water not just to the pub’s kitchen, but also to the flats above. Hot water elsewhere in the bar was supplied by an electric emersion heater.
Geo Bar installed two heat recovery cellar coolers, as well as capturing the valuable heat generated by the beer coolers. The recovered heat was used to provide the entire building with a constant supply of free hot water. Additional savings were achieved as heat from the coolers, which was previously being pumped into the corridor, was being captured and used. This not only made the area more comfortable for staff, but also meant that white goods in that part of the bar operated more efficiently – which led to a further reduction in running costs.
Water rates – approximately £8,000 pa
Case study 2
Spirit managed house.
Situated in the heart of Edinburgh’s university district, Doctors is known for its warm welcome, hearty bar meals and impressive array of real ales.
There were a number of issues giving the bar’s manager a real headache. Firstly, the pub’s listed status meant that the cellar cooler heat dumps where located in a corridor and causing a major build up of heat. Secondly, the building’s limited downstairs space meant that numerous white goods, including freezers, ice machines and fridges were all close together and the heat they generated regularly forced the temperature up to uncomfortable levels. Added to the internal heat dumps, this meant that the back of house area was seriously over heating.
Because of these artificially high temperatures, the bar’s refrigeration units weren’t just having to work harder than normal to keep things cool, but also they were unable to achieve optimum performance.
This in turn meant that the cellar coolers weren’t performing well, making properly conditioning the cask ales a problem and making it difficult for the bar staff to get the other beers into the glass.
Geo Bar installed two heat recovery cellar coolers, one in the cellar and one in the white goods room. We also set up a system to capture heat from the beer line coolers. The recovered heat, which was previously causing problems, is now providing hot water to the kitchen and heat to the bar area. And as an added bonus, the staff are now enjoying more comfortable working conditions and a properly cooled cellar.
Total - £5,181 pa
Energy – approximately £4,000 pa
Case study 3
The Alma, Cotton Stones, Freehouse with Hotel and Restaurant
The Alma Inn has luxurious hotel and corporate accommodation together with a fantastic restaurant. It is one of Calderdale’s finest, traditional country inns offering superb home-cooked food, hand-pulled real ales, vast stock of Belgium beers, luxurious bed and breakfast/hotel accommodation and dramatic rural views. The pub is not connected to mains gas and so has to use more expensive alternative fuel, LPG.
The Alma has 5 superb letting bedrooms, a large restaurant and owner’s flat. The external condenser (heat dump) was causing noise problems at night. The old underground cellar was modest in size. (The bigger the cellar area, generally the more hot water can be produced).
There was also the issue that the heat from the beer coolers and soft drinks cooler was also being pumped outside, the owner wanted to capture all this wasted heat as well. On occasions on warm summer days, the old cellar cooler struggled to get the cellar down to temperature.
The water was heated by an old LPG water boiler, which provided hot water not just to the pub’s kitchen and services, but also to the hotel bedrooms and owners flat above.
Geo Bar installed a heat recovery cellar cooler, which as well as cooling the cellar, also captures the valuable heat generated by the beer cooler and soft drinks cooler. The recovered heat was used to provide the entire building with a constant supply of free hot water.
The Carbon Trust Independent expert estimated that the Alma would save £4,331 in total energy costs per year. During the first year of installation, the owner managed to turn all other sources of heating off in April 2011 and did not turn it back on until October! A whole summer of free hot water, improved beer quality and cheaper cellar cooling to add!
Case study 4
Scott's Arms -Yorkshire Pub of the Year contender.
Ex ‘Chef & Brewer’ pub restaurant. 20 year Lease.
Gas costs were £15,900 per year. Existing equipment was old and needed to be replaced.
Following a survey to identify their energy requirements, a heat recovery cellar cooler, a new boiler and thermal store were installed. Water boiler removed completely, replaced with Thermal Store.
The Carbon Trust estimate the Geo BAR system and new boiler
would save over £7,000 every year. Actual savings above forecast.
Geo BAR arranged a loan via the Carbon Trust to cover all costs.
Laura Addle, the pub manager, said: "It seemed like a fantastic idea to have the wasted heat put back into the building and it is saving 28 tonnes of carbon dioxide a year.