ST BARTHOLOMEW’S HOUSE, BRISTOL  

Installation of 2 Hydronic AHUs. Airsystems stripped out 2 existing AHU’s, delivered 2 new Hydronic AHU’s in flat-pack form, transported them via lift and stairs through a single door to Plant Room and rebuilt them. 

ZUKEN, BRISTOL  

Positioning and site bolt-up of Hydronic AHU. Airsystems organised the offloading, cranage and positioning & site bolt up of AHU on roof, 5 storeys up. 

Project Sophia, Exeter  

Working with IntoHeat, the mechanical contractor for this 600-bed student accommodation scheme in Exeter city centre, Hattersley have supplied the general and commissioning valves for the plant room shown, domestic LTHW and CHW services. 

Bristol International Airport  

Bristol International Airport has gone through many changes and enhancements over the last few years and Air Systems as a local company is proud to have been involved in these improvements to the East Terminal Extension, West Terminal Extension, Baggage Handling and Immigration Hall. Air Systems has provided. Air Handling Units, Fan Coil Units, VAV Boxes, Grilles, Diffusers, Heat Recovery Units, Coils as well as cranage and site bolt up. 

COMBIflo keeps up with fitness enthusiasts at Imperium Gym  

When Ben Hay and Ben Wadham set up a gym in a small 1000sqft unit, their client base expanded rapidly. More space was required, so with a bit of help from Ben’s father Steven Hay, they set out to create a purpose-built gym like no other, and asked Andrews Water Heaters to provide a hot water solution that would help them achieve this dream.  Imperium Gym in Plymouth is not your average run-of-the-mill fitness centre. It offers everything including a state-of-the-art cardio, strength and fitness suite, a full functional fitness area and coached classes. The gym is home to Plymouth’s Cross-Fit workout sessions amongst other functional fitness training programmes. The gym was the dream of ex-marine physical training instructor Ben Wadham and brought to life by Ben Hay and his family. It started in a 1,000sqft building. Within one year, membership had increased to 100 people. To cater for the rise in demand, Ben and his father Steve worked with local contractors to create an 8,000 sq ft purpose-built unit. Apart from dedicated equipment and space for Crossfit, Strongman and gymnastics training, there is also a café next door for those who wish to replenish their energy levels after a workout. 

During the early stages of the new gym’s development, Ben and Steve sought the services of Zack Davey’s team at Uni Gas, not only to connect the property up to the mains gas supply, but also to install a solution which would supply space heating and hot water to both the gym and the café. 
Because gym-goers prefer to exercise in a cool space, space-heating requirement in the large industrial unit is low. However, with ten showers, eight washing basins and a kitchen, demand for instantaneous hot water is much higher. 
“My original plan was to install a boiler cascade with a series of cylinders, but this wouldn’t have been energy efficient for the gym,” Zack explains. 
“After discussing hot water usage patterns with Ben and Steve, it became clear that during weekdays, peak shower times are before and after working hours, so typically, between 7-8.30am and 6-7pm. At weekends, many members like to go to the gym in the morning between 9.30-10.30am. The café normally needs hot water about 20 minutes after members finish their workouts and go there to grab a bite to eat or a drink.” 
Armed with this insight into the gym’s hot water usage, Zack challenged Amanda Symons, Area Sales Manager for Andrews Water Heaters, to provide a solution. She recommended a COMBIflo 150/300 unit, and supported her proposal with a specification report produced using the Size-it tool. It contained calculations and estimates of the flow rate and volume of hot water required across the premises, to show that the specified Andrews water heater would meet the gym’s needs. 
Amanda explains, “For this type of application where demand for hot water is higher than space heating, the COMBIflo provides a simple solution. With three burners, the COMBIflo can modulate between periods of high and low demand to supply hot water and heating more efficiently, lowering the gym’s energy bills throughout the whole life of the product.” 
Andrews Water Heaters’ COMBIflo is a gas-fired condensing stainless steel water heater which provides hot water and space heating from the same unit. Available with either two or three gas fired heat exchangers, it delivers a virtually instantaneous supply of up to 2,240 litres per hour of hot water (at a 50°C rise) or 150kW of space heating. 
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