Large healthcare settings MUST have reliable, economical, on-demand, continuous hot water to serve the thousands of patients, visitors and staff who populate our NHS hospitals every single day. Sustainability is another huge driver in deciding which system to select. The following case study underlines how large spaces can achieve energy efficiency without compromising on quality or consistency and is a must-read for estates and facilities teams.
Rinnai hot water systems are projected to produce ‘significant’ carbon reductions at a huge indoor arena in the North of England. The company has produced a designed system based on its R290 high-temperature heat pump. This arena regularly hosts large events such as concerts, conferences, theatre plays, exhibitions, live music and other conventions – so the site must have an energy efficient and carbon-reducing hot water system to achieve NetZero.
The current system used by the arena is 2 x 116kW traditional gas-fired water heaters. Daily hot water demand of the indoor space is 4,377 litres.
For the arena to decarbonize daily operations whilst meeting water demand, Rinnai has drawn up plans for 6 x 50kW R290 commercial heat pumps with an additional 800 litres of storage. Installing Rinnai’s high temperature R290 commercial air source heat pumps at the indoor arena has enabled a huge reduction of 81% in carbon emissions when compared to the current system. Below is a graph that illustrates the difference in carbon outputs over 5 years. The current system is highlighted in blue, and the Rinnai R290 commercial heat pump system is identified in purple.
Says Rinnai’s Sean Ehlen, “The results of this case study show that converting to a HP only option can reduce the carbon emissions over 5 years by 81%, or by 389,296kg of CO2. Furthermore, by opting for a high temperature commercial air source heat pump system the total annual energy usage required is 175,557kWh of electricity as opposed to the 478,129kWh of natural gas.”
“However, as electricity is approximately 3x that of natural gas, the total operating cost of a high temperature commercial heat pump system will be 30% more than a gas system based on government projections.”
All Rinnai commercial heat pumps will continue to increase carbon reducing performance once the UK electrical grid undergoes modifications that allow the accepting and distribution of further renewable energies.
Alongside the High Temperature R290 commercial air source Heat Pump, Rinnai have adapted their product offering to encourage commercial and domestic decarbonization. Rinnai’s H3 array of clean energy products include commercial heat pumps, hybrid solar and hydrogen ready heating and hot water systems.
Along with the expansion of low-carbon products Rinnai offers design support services that consider the nuances of the building type. The customer facing design team will calculate the capital expenditure, operational expenditure and carbon of the range of heating systems on offer and support the end user in selecting the system that is practically, economically and technically feasible. To take advantage of this service contact Rinnai today via there interactive customer support services.
Rinnai is sensitive to the change in UK energy market customer demands and is keen to offer products and ancillaries that best compliment the customer’s request. Rinnai aims to encourage clean energy usage across the UK by supplying, cost effective and robust efficiently performing products across a variety of existing and clean energies.
RINNAI OFFERS CLEAR PATHWAYS TO LOWER CARBON AND DECARBONISATION PLUS CUSTOMER COST REDUCTIONS FOR COMMERCIAL, DOMESTIC AND OFF-GRID HEATING & HOT WATER DELIVERY.
Rinnai’s range of decarbonising products – H1/H2/H3 – consists of hot water heating units in gas/BioLPG/DME, hydrogen ready units, electric instantaneous hot water heaters, electric storage cylinders and buffer vessels, a comprehensive range of heat pumps, solar, hydrogen-ready or natural gas in any configuration of hybrid formats for either residential or commercial applications. Rinnai’s H1/2/3 range of products and systems offer contractors, consultants and end users a range of efficient, robust and affordable low carbon/decarbonising appliances which create practical, economic and technically feasible solutions.
Rinnai is a world leading manufacturer of hot water heaters and produces over two million units a year, operating on each of the five continents. The brand has gained an established reputation for producing products that offer high performance, cost efficiency and extended working lives.
Rinnai products are UKCA certified, A-rated water efficiency, accessed through multiple fuel options and are available for purchase 24/7, 365 days a year. Any unit can be delivered to any UK site within 24 hours.
Rinnai offer carbon and cost comparison services that will calculate financial and carbon savings made when investing in a Rinnai system. Rinnai also provide a system design service that will suggest an appropriate system for the property in question.
Rinnai offer comprehensive training courses and technical support in all aspects of the water heating industry including detailed CPD’s.
The Rinnai range covers all forms of fuels and appliances currently available – electric, gas, hydrogen, BioLPG, DME solar thermal, low GWP heat pumps and electric water heaters.
The company also offers full product availability 24/7 for next day delivery of all hot water heating models, including 48-58kW units, offering savings of:
20% REDUCTION of opex cost
30% REDUCTION of initial cost
15% REDUCTION in carbon
75% REDUCTION of space
More information can be found on Rinnai’s website and its “Help Me Choose” webpage.
For more information on the RINNAI product range, please visit www.rinnaiuk.com.
