Making Solar Water Heating Solutions Easy With SOLARsave
Filed under: Renewable Energy Cylinders, Unvented Cylinder, hot water cylinder, solar cylinders
McDonald Engineers has made solar hot water systems easy with its SOLARsave pre-plumbed unit which features a high performance dual coil copper cylinder with all the major components pre-fitted and pre-wired for a quick and easy installation.
Available in vented and WRAS approved unvented cylinders, the SOLARsave unit comes supplied with a Solar Differential Controller pre-plumbed to the solar coil. Simply connect the flow & return and solar sensor from the differential controller, along with a solar expansion vessel and relief valve and your solar system is ready to use.
McDonald Engineers’s Sales Director, Jamie Stewart, said “Whilst we have an extensive portfolio of expert solar installers who recognise the benefits from high quality copper cylinders in solar thermal solutions, we were receiving a growing number of enquiries from plumbing contractors who wanted a complete ‘plumb and go’ solution.”
He continued, ” SOLARsave not only makes the specification of the hot water system simple, the pre-fitted and prewired components dramatically reduce the installation time of the system, making it easy and accessible to a far greater number of installation contractors.”
McDonald Engineers also offers its full range of thermal stores, unvented cylinders and calorifiers now available with solar compatibility.
For more information visit www.mcdonald-engineers.com or call 01592 611123.
Solar Cylinders: McDonald Engineers Play A Key Role in Solar Energy Programme
Filed under: Renewable Energy Cylinders, Uncategorized, solar cylinders

Hot Water Cylinders for Solar Panels
McDonald Engineers is using its extensive experience in harnessing the power of solar energy in its solar cylinders, to provide hot water to one of Scotland’s largest local authorities, who is rolling out its highly successful programme to private households and firms.
McDonald Engineers has been one of the UK’s leading manufacturers of hot water cylinders since 1946 and has been developing the solar compatibility of its cylinders for the last three decades, establishing itself at the cutting edge of renewable energy.
The company will be providing vital specification assistance and installation advice to the various partners involved with the project, to ensure that every project maximises the energy transfer from solar panels to the hot water.
McDonald Engineer’s Managing Director, Bill Stewart, explained “Studies show that a solar water heating system could provide around a third of annual hot water needs and reduce the impact on the environment but only with a highly efficient heat transfer process.”
He continued, “There is a growing recognition of the superior benefits that copper coils and cylinders can have in the renewable energy sector. Copper’s thermal conductivity is far superior to other material, such as stainless steel and also our manufacturing process allows a far larger heating surface than other manufacturers. ”
“The improved thermal conductivity, means that it will take significantly less time and solar energy required, for the copper coil to raise its temperature to the required level, compared to the stainless steel coil.
The company now offers full compatibility across the range, of its POWERflow 2000 Unvented Mains Pressure Hot Water Cylinder, THERMflow Thermal Storage Cylinders, ELECTRAflow Electric Wet Central Heating Systems, the TIMEsaver plumbing unit, its full range of Calorifiers and of course its original SOLARsave system.
If you are considering solar energy for your property or project, or indeed any renewable energy source, such as Geothermal and Air Source Heat Pumps, McDonald Engineers are available to assist you, to ensure your hot water cylinder is the perfect solution.
Please call on 01592 611123 or email sales@mcdonald-engineers.com
Future Proof Your Hot Water System With an Unvented Cylinder
Filed under: Renewable Energy Cylinders, Unvented Cylinder, hot water cylinder

Many architects, installers and end clients are turning to unvented cylinders as a means of future proofing their project, due to the systems’ ability to work with renewable energy sources such as solar and heat pump installations.
An unvented cylinder can be either heated directly by electricity or indirectly from an auxiliary boiler, typically gas or oil fired, and can be linked to a solar thermal or heat pump installation. When installed with a new generation condensing boiler, as required under the current Building Regulations, and connected to a renewable energy source, CO2 emissions and energy consumption are reduced.
With the growing unpredictability of energy prices together with the growing movement towards a renewable energy culture, many are seeing unvented systems as a means of keeping their options open with regards to powering their hot water system.
McDonald Engineers, Sales Directors, Jamie Stewart, explained ” Both solar thermal and heat pump systems require hot water storage, such as an unvented cylinder and the perfect partner for these renewable technologies is a copper unvented cylinder with specifically developed solar or heat pump coils. Copper gives unrivalled heat transfer and maximises the benefits of solar and heat pumps”
McDonald Engineers’ POWERflow 2000 range is one of the UK’s leading unvented copper cylinder systems and the company’s experience and expertise in producing one-off systems, to meet the exact requirements of a multi-fuel solution, is highly respected in the heating sector.
Jamie continued, “We have been at the forefront of the industry when it comes to designing hot water cylinders that are compatible with solar energy and heat pump solutions. However it’s our unique ability to manufacture for large contracts and for one-offs, to our uncompromising quality standards and unrivalled lead times, that has enabled us to establish our enviable reputation in the UK market place.”
To find out more about McDonald Engineers extensive range of “Renewable Ready’ solutions visit www.mcdonald-engineers.com or call 01592 611123.
McDonald Engineers Introduce the Renewable Ready Range of Hot Water Systems
Filed under: Copper Cylinder, Electric Wet Central Heating System, Multifuel Hot Water System, Vented Mains Pressure System, hot water cylinder

McDonald Engineers is enabling architects and consultants to reach their energy targets with the launch of their dedicated range of hot water systems that are designed to be used in conjunction with renewable energy sources such as solar energy and heat pump technology.
The Renewable Range features its POWERflow2000 system, the THERMflow range, the ELECTRAflow electric wet central heating system, the TIMEsaver plumbing unit, its full range of Calorifiers and of course its original Solar Save system which was the first in the range to be designed with high specification coils and probe pockets to maximise the benefit of solar energy.
The company, which has been at the forefront of hot water systems since 1945, has been developing cylinders designed for solar energy since the early 70s and has established itself as one of the most respected manufacturers in the industry.
Managing Director, Bill Stewart, said, “It is vital that we all play our part in reducing the energy we are using and we are delighted to launch this exciting range of products that we hope will enable designers, specifiers and contractors to achieve their energy saving obligations.”
A key element in the design of the range is the recognition that, in many instances, solar energy is unable to act as the single source and provide the level of power required to heat every application.
McDonald Engineers have therefore developed a multi-fuel system, such as in their THERMflow range, which can work with a number of energy sources and in doing so, reduce the ongoing running costs.
Bill continued, “By designing a system that can work with a multiple of fuels we can attempt to draw the energy from every available source thereby delivering the most cost effective hot water solution.”
The company is also available to incorporate a number of high efficiency coils into its POWERflow 2000 range to improve the effectiveness of solar, heat pumps and boilers in delivering the required levels of energy.
For more information on the range of renewable energy hot water systems and the full range of hot water systems available from McDonald Engineers visit www.mcdonald-engineers.com or call 01592 611123









