29 September 2025
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Kimpton, the Liverpool and Northwest-based HVAC specialist contractor, has supplied and installed the Spire Murrayfield hospital in Barnston, Wirral with an emergency replacement Rinnai hot water heating system after the site’s gas fired storage water heaters failed to operate.
Replacing the hot water heater system meant that the hospital could continue supplying daily care to the community without interruption to medical continuity. The hospital produced its hot water for the X Ray and other departments via a single gas fired storage water heater. When this unit failed, an urgent response was required to ensure continuity of supply for patients and staff.
Kimpton offers temporary boiler and water heater hire, so this was the first port of call. Within a few hours problem had been isolated, and the new temporary boiler set had been installed to ensure zero downtime. This system was made up of two 58kW gas-fired Rinnai water heaters on a simple skid. The temporary system had been designed by the team at Kimptons with support of Rinnai, so we were confident it would work exactly as required.
The finished system was made up of a buffer vessel and two higher efficiency Rinnai modulating gas-fired 20% hydrogen ready water heaters of 58kW each. This set up allows the system to regulate capacity as required and ensure both continuous flow water heaters are cycled evenly. The new system allows water to be raised in temperature from 20 degrees to its max of 65 degrees in only 15 minutes, so allows huge flexibility.
The project was managed by Paul Bowes and Stuart Dilworth from start to finish. Speaking about it, Paul said “The whole project went well from the outset. Customers like Spire Murrayfield must be able to operate with zero downtime. Our temporary hot water heater system saved the day in this project and allowed us to conduct the system upgrade with no dramas and zero downtime.”
The Rinnai instant hot water solutions are an ideal solution for mobile, temporary and heat for hire services as they are light weight (28kgs) high power (58kw) diminutive water heaters. Another added benefit is that they come with market leading warranties up to 12 years and can be easily set for LPG or NG dependent on site needs.
Sam Carson speaking on behalf of Rinnai stated, “It is a pleasure working with Kimptons and I am pleased that the easy fit, high flow rate nature of Rinnai appliances proved to be an ideal option for the hospital and my friends at Kimptons.”
Rinnai is global leader in hot water systems with 2M+ units produced annually. The gas-fired water heaters are hydrogen 20% blend ready and BioLPG ready, future proofing hire applications and many more. Rinnai also provide innovative heat pump and hybrid solutions for a wide range of commercial projects. Ensuring the supply of heating and hot water systems for multiple fuel sources and creating options for clients such as Kimptons.
Kimpton has been delivering M&E projects, commercial fit-out and HVAC services across the Liverpool City Region since 1963. The company places great emphasis on M & E innovation. For example, for many, heat pump technology is new, but Kimpton began designing and installing heat pumps in 1974 when it helped Walkers Crisps and Golden Wonder solve the problem of how to make the stored potatoes last longer. By dramatically changing the length of time potatoes could be stored, it allowed them to buy potatoes when they were plentiful and, in its own way, revolutionised the UK’s potato crisp industry.
This culture of innovation has led to the delivery of two other UK firsts in renewable technology – Kimpton designed and installed the UK’s first water source heat pumps in open sea at Plas Newydd, Anglesey for the National Trust and installed one of the UK’s first Transpired Solar Collectors with TATA steel at the SBEC Building on Deeside.
For free gaseous, heat pump or hybrid system design support contact Rinnai experts today www.rinnai-uk.co.uk/contact-us/help-me-choose-product
