Adveco 2020 Product Overview Now Available

The 2020 Adveco Product Range brochure serves as a quick reference document covering a wide range of products and services provided by Adveco and A.O. Smith. The current range incorporates commercial hot water and heating equipment including: condensing gas water heaters; storage tanks, oil & electric water heaters; solar thermal; boiler cascade systems; stainless steel cylinders, thermal storage tanks, carbon steel buffers, combined heat & power (CHP); Air Source Heat Pumps (ASHP). These technologies are the building blocks for Adveco’s bespoke packaged plant rooms and system offerings. All supported by our applications and field engineers who provide expert commission services, warranty maintenance and training.

If you are seeking support in the design, supply, commissioning or servicing of business-critical hot water, heating and power then this brochure is a useful tool to have to hand.

You can download the brochure now.

Adveco Showcases New Hybrid Packaged Plant Rooms at CIBSE Build2Perform

  • Accelerate project timescales with offsite constructed heating, hot water and low carbon energy systems
  • Introducing packaged hybrid systems that help meet new carbon targets
  • Understand whether continued investment in gas infrastructure is still viable

Hot water and heating specialist Adveco, will be exhibiting its first hybrid packaged plant room systems for heating and hot water at CIBSE Build2Perform November 26th & 27th at Olympia, London. These bespoke designed systems, built into a weatherproof enclosure, not only maximise available space on a commercial project but also deliver system resilience, help reduce a building’s energy consumption and reduce operational costs.

Adveco’s plant rooms leverage technology from a range of partners including A.O. Smith, Cosmogas and cogeneration specialist TOTEM. Appliances are combined with Adveco’s own in-house designed control systems and industry recognised heat recovery technology, such as the HR001, a standalone Heat Recovery Unit providing a convenient, packaged unit to recover refrigerant system waste heat.

For the first time, Adveco will be showcasing a hybrid application that combines the new Adveco FPi Air Source Heat Pump with an A.O. Smith Innovo condensing room-sealed gas water heater and controls, enabling commercial sites to achieve lower cost heating or cooling.

An all-electric packaged plant room will also be on display alongside the popular MD high efficiency condensing gas boiler.

MD high efficiency condensing gas boiler - floor standing or wall mounted.Compact and lightweight, with low CO and NOₓ emission levels, MD is perfect for use in conjunction with an air source heat pump as part of a hybrid system, providing both sustainability and the operational responsiveness required by larger-scale commercial systems. With multiple load-balanced heat exchangers in a single chassis, MD offers peace of mind with built-in redundancy, all backed by a seven-year warranty on all parts and labour when commissioned by Adveco and a 10-year warranty on both the heat exchangers and the pre-mix burner.

Adveco’s Application Engineer Simon BennetOn Wednesday afternoon, Adveco’s Application Engineer Simon Bennet will be helping designers facing the decision of whether to adopt all-electric for new buildings or outlay for a gas supply ready for conversion to hydrogen. A decision that could affect future carbon emissions and running costs for the lifetime of the building. Simon will outline the practical considerations to help decide whether the cost and the need to reduce carbon make continued investment in gas infrastructure viable for commercial new build projects. You can register for this session by visiting the Build2Perform Seminar page.

Reducing Energy Costs Through Cogeneration

Cogeneration utilises onsite production by a gas-powered engine to allow a building to generate electricity and recover energy from the process which can then be used for water heating or central heating. Download the 2019 brochure now and discover the advantages of Adveco’s TOTEM m-CHP and see how it can transform your next project…


TOTEM m-CHP site installation

Just Take The Stairs… Meeting the Challenge of Refurbishing an Existing Plant Room

Contracted by a London based customer to supply an improved replacement for a previous CHP system that had failed, Adveco was recently presented with the challenge of locating a new TOTEM micro-CHP system into the existing plant room which offered only step access, raised concrete room dividers and narrow routes of access due to the existing HVAC installation.

Fortunately, the compact form factor of the TOTEM T10, despite weighing in at 720 kilos, meant navigating tight spaces should be relatively easy. If needs be the entire unit can be stripped down into separate parts and then reassembled once moved to a new location, usually within a single working day. In this case, it became clear that a set of temporary timber ramps and supported bridges would suffice. With these built on location by Adveco’s engineering team, it was a simple and amazingly fast operation to bring the TOTEM onto site for installation and commissioning by the team.

Adveco’s specialist team of engineers navigated the issues of the site for a flawless install, and the customer can now take full advantage of cogenerated electricity and recovered heat from the unit to make considerable operational savings and guarantee accurately modelled return on investment.

TOTEM m-CHP installed location, refurbishing an existing plant room.With Adveco providing remote monitoring, service and maintenance call out for the TOTEM, the new m-CHP will continue to provide energy and heat for years to come. With assured quality of performance from Adveco, the TOTEM T10 delivers a refurbishment investment that comes with peace of mind for the customer, alongside all the advantages of a resilient, onsite source of power and heating whenever there is demand.

Watch the video of the delivery and locating of the m-CHP for installation by Adveco.

Bootham School Adveco mCHP exterior

Adveco TOTEM mCHP, a Lesson in Reduced Energy Cost and Lower Emissions

  • Bootham School selects Adveco TOTEM m-CHP based system for heating and domestic hot water
  • System design modelling accurately predicts operational costs and payback period
  • Savings of approximately £37,000 per annum

Bootham School in York, a charitably run independent boarding school, has selected a TOTEM micro-cogeneration (m-CHP) based system from commercial heating and hot water specialist, Adveco Ltd., for sustainable and cost-effective provision of power and heating throughout the school estate. The system provides £37,000 in annual operational cost savings and reduces the school’s CO₂ generation helping adhere to its Quaker values.

Working in partnership with Brentwood Consulting Engineers and contractor John Wright Electrical and Mechanical, Adveco recommended the installation of two TOTEM T25 m-CHP units and an Adveco MSS5000 for a pre-fed boiler system. Electrical generation by the m-CHP would decrease the energy import of the school, as well as lowering carbon dioxide emissions. Heat generated would be delivered to the hot water circuit which operates constantly through the entire school.

Adveco also provided Bootham school with a Full Maintenance Contract, covering all moving parts and controls, that guarantees long-lasting CHP unit efficiency. “Whilst there are high servicing costs, we factored all of that into the total lifecycle costs. This means after 10 years rather than replacing the whole unit we can simply extend the contract with Adveco, saving the capital cost of installing new units,” says Craig Pierotti, Estates Manager, Bootham School.

Bootham School Adveco Totem T25 mCHP

Running data was analysed against the pre-contract predictions which shows that the units are performing better in terms of cost savings per run hour. By extrapolating the figures to give a full year’s running (6,677 hours) the payback periods for the project will be achieved and Bootham School should save an estimated £36,996. Importantly, the CHP system also enables the school to adhere to its Quaker values with CO₂ savings of more than 115,500 (kg.CO₂). The NOx emissions are also greatly reduced with emissions from the TOTEM units less than 40 mg/kWh of electricity output.

“The installation was completed on time, to cost, and successfully due to the team effort.  Everyone was on board and got on with it, otherwise, I don’t think we would be in the situation where we are, producing the results we are today,” says Craig “Adveco are constantly monitoring the CHP’s for us and contact us only when they want to come and service the units. It is literally fit and forget. It’s absolutely fantastic!”

Read more about the Bootham School TOTEM m-CHP project

H&V News Awards Finalist logo

Adveco’s m-CHP System for Bromsgrove Leisure Centre Shortlisted for Renewable Project of the Year Award

Commercial hot water and heating specialist, Adveco’s TOTEM micro combined heat and power (m-CHP) based system for Bromsgrove’s new Leisure Centre has been named as a Renewable Project of the Year finalist in the 2019 Heating & Ventilation News Awards.

As part of a wider local redevelopment project by Bromsgrove District Council, the new sports and leisure centre demanded a high-performance heating system. To achieve the level of energy efficiency required for this modern building, Yorkshire Building Services Ltd (YBS) designed, and Adveco provided, a system based on its Totem T25 m-CHP to reduce emissions and improve total efficiency.

“To have a customer’s project selected is especially gratifying, celebrating the professionalism of our contracting and installation partners and our customer’s decision to put their trust in us. It also one of the finest ways to showcases our commitment to sustainable technology that meets and exceeds the need for carbon reduction and the lowering of emissions,” said David O’Sullivan, managing director, Adveco.

The state of the art building features two large swimming pools, a sports hall, a 100-station gym, a fully featured spa and a café, so was a prime opportunity to display the sustainable potential of an m-CHP system. Electricity is produced and consumed on-site reducing the building’s reliance on the local grid. The waste heat produced is captured through a series of heat exchangers and used towards the high heat demand of the system.

With the significant continuous demand made by the Bromsgrove site, the m-CHP system drastically reduces the reliance on conventional boiler technology and improves the overall efficiency of the building. The site is on target for a net reduction in carbon emissions of more than 65,000 kg per year as well as providing an estimated £10,000 in annual savings to the District Council which runs the facility.

Designed as a boiler pre-fed system, allowing the m-CHP unit to maximise its input by prioritising the higher energy demand present in the building’s heating system, Adveco supplied a TOTEM T25 m-CHP appliance as well as a bespoke 3000-litre buffer vessel, including controls and ancillaries, to serve the building’s heating system. Adveco additionally supplied two A.O. Smith BFC120 condensing water heaters to serve the domestic hot water supply to the leisure centre.

Learn more about the Bromsgrove Leisure Centre project.


CHP Applications for Schools and Colleges

Combined Heat and Power (CHP) systems, also known as cogeneration, is becoming an increasingly desirable technology within the commercial heating and hot water markets as awareness of their potential benefit spreads.  As an effective method of increasing a building’s energy efficiency and reducing emissions, CHP is a key technology to consider in the face of increasingly strict building standards.  Due to valuable energy savings, it can also be a beneficial investment for end users.    However, CHP systems require the proper application to realise their much-sought-after benefits, making careful system design essential to any project.

Suitable applications for CHP systems typically feature buildings with large domestic hot water demands and continual background electricity loads.  Large schools, or those that include on-site leisure or sports facilities such as a swimming pool, therefore constitute an ideal opportunity to make effective use of CHP.  Smaller schools can be well served by CHP when properly designed, and boarding schools and halls of residence are typically excellent applications as the daily needs of residential living creates a large demand for hot water, heating, and electricity.

Combined Heat and Power is the simultaneous production of thermal and electrical energy from a single source of fuel, and is a proven method of significantly increasing the energy efficiency of a building.  Producing electricity by connecting an engine to a generator at the point of consumption can achieve similar levels of generation efficiency to that of a conventional power plant, while also eliminating the energy losses associated with transmitting power over long distances and contributing to the decentralisation of power generation.

The waste heat produced in the process is recovered through a series of heat exchangers and used towards the thermal energy demands of the building, minimising the amount of fuel energy that is lost in exhaust gases.  By connecting the CHP appliance to a building’s hot water or heating system to pre-heat incoming water, a significant portion of the input energy demand is moved from away conventional condensing boilers to the CHP, thereby increasing the overall efficiency of the installation.

The Adveco TOTEM CHP is the first in a new generation of microcogenerators, featuring market-leading efficiencies and the lowest NOX and CO2 emissions available from any CHP within its class.  Designed and built in Italy by Totem-Energy s.r.l., the TOTEM is the result of 40 years of continued research and development, and features components purpose-built for operation on natural gas.  A 1.4-litre Fiat Fire engine, sourced directly from Fiat Chrysler Automobiles – the developers of the original TOTEM in 1978 – and an ECU supplied and tuned by automotive experts Magneti Marelli allow the TOTEM to achieve unparalleled cogeneration quality and reliability.  With NOX emissions at <12 mg/kWh, 95% lower than the upcoming 2018 Ecodesign standards for clean CHP at 240 mg/kWh, the TOTEM is leading the way in environmentally-conscious building design.

While the benefits of CHP are clear, it is important to consider that they are only available when the system is operating.  It is therefore desirable to design systems to achieve the maximum number of run hours possible to achieve the greatest energy and financial savings from CHP.  In the UK, an average school building will require a level of heating for approximately two thirds of the year, shutting down only during the warmest summer months, creating a seasonally consistent LTHW demand.  While occupied, schools also present a constant domestic hot water demand from sources such as sports showers, science, arts & craft, and home economics classrooms, plus bathroom use throughout the day, in addition to peak demands for mealtime preparation.

Combined, this becomes a viable application for CHP.  By connecting a buffer vessel to a CHP appliance that feeds directly into a central heating header, a differential temperature control system can be used to monitor central heating return flow temperatures to activate the CHP and associated pumps when heat input is required.  By pre-heating the central heating return circuit, the CHP can achieve high run hours and significantly reduce the heating load on conventional boilers.  Furthermore, as schools also exhibit a continual demand for electricity, the power generated by CHP can always be used on-site, reducing the reliance on grid-supplied electricity.

For larger schools and for those that include extensive leisure facilities such as swimming pools, the thermal energy demands are sufficiently high that an uncontrolled system is instead viable.  In such an application, a constant background heating load means that the CHP can run almost continually and the produced heat and power can always be used on-site towards a fixed LTHW demand.

Since the launch of the TOTEM in 2015, Adveco Ltd. has supplied a number of schools and higher education accommodation buildings with CHP heating and hot water systems.  With each application receiving a bespoke design from an in-house application design department, the effectiveness of CHP has been maximised.  A recently commissioned installation at a large boarding school is achieving run hours averaging over 20 hours per day, on track for over 7,400 hours per year, with expected annual savings, inclusive of maintenance and servicing expenses, in excess of £21,500.  Similarly, a school sports complex fitted with an Adveco T20 CHP in late 2016 has achieved peak run hours of over 23 hours per day in a demand pattern that is expected to continue year-round.

Adveco Ltd. is a supplier of building services mainline solutions and specialists in commercial hot water solutions.  Adveco Ltd. is the sister company to Adveco (AWP) Ltd. who trade as A.O. Smith Water Heaters in the U.K. and has over 45 years of experience in the building services industry.

With an ethos to provide only the highest quality products and services, including some of the latest renewable technologies available such as solar thermal and CHP systems, Adveco Ltd. manually design and supply complete hot water and heating solutions.  Incorporating a professional application design department to envision bespoke and practical systems, in addition to in-house sales, servicing, and commissioning engineers, Adveco prioritise the needs of the client and the application to deliver the most efficient, cost-effective, and reliable solutions available.

CIBSE August 2017: TOTEM at Killelea House Care Home

The Adveco TOTEM features in the August 2017 edition of the CIBSE journal on the topic of heat pumps and healthcare. The article presents news of the TOTEM T10 m-CHP installed at Killelea House, a new high-dependency care home in Bury, Greater Manchester.

The new care home provides room, care facilities, and catering for up to 36 occupants and features CHP at the heart of its heating and hot water system. The high efficiency and reliability of the appliance increase its return on investment for the end user, maximising financial benefits while simultaneously cutting emissions by a significant amount.

To read more, please find the full article enclosed with the August 2017 edition of the CIBSE journal, available online via the CIBSE archive here. For more information about the TOTEM and CHP, please click here.

CHP vs. Solar PV: A Balanced Approach


Is CHP now the better choice due to the reduction in Solar PV Feed-in-Tariff?

The choice of technology used to achieve carbon reduction targets is an interesting and important decision for any building services engineer.  The best engineered solution must not only meet the required carbon reductions, but must also incorporate factors such as the system capital cost, its longevity, and the degradation of efficiency over time.  From the client’s perspective, there are also savings and costs after commissioning – incentive schemes and routine maintenance, for example – that must be considered.  With turbulent energy costs, changing incentives, and the influx of new technology to the market, it is very important that designers regularly review their technology choices; engineers can no longer incorporate a default technology into all designs and still achieve a satisfactory result.  The two main technologies are CHP and PV, and with recent changes and the general long-term uncertainty of incentives, CHP is often a better option.

The consultation and review of the Feed-in Tariff (FiT) scheme in late 2015 had a dramatic effect on the economic value of PV solar systems.  Prior to the review, when the tariff for large solar PV systems was 9.5p/kWh, the FiT was so valuable that it was not important whether the electricity was used on site or exported to the grid.  If all the produced electricity was used on-site then a 100kW system, costing £90k to install and achieving 900kWh/kWp, could achieve a 5-year payback.  In the worst-case scenario, even if 100% of the electricity was exported to the grid, this system could still achieve a 7.5-year payback when combining the FiT with the export tariff.  This allowed the designer to simply calculate the number of PV collectors needed to meet the yearly carbon savings.   The system would be cost effective for the client regardless of the building’s electrical demand to PV peak output ratio.

Since both CHP and PV can be used to achieve the same level of carbon reduction, consideration should be given to the financial case they both provide to make the decision.  Maintenance costs for both systems are accounted for in the payback ranges and long term repair costs can be shown to be similar over 25 years.  A key advantage of CHP is that the engine can be overhauled to restore the efficiency to its peak, whereas the PV system will experience degradation over its life that cannot be rectified.

Following the consultation, the Feed-in Tariff payments fell by 80% for 50-250kW solar PV systems.  Today, it is less than 2p/kWh.  Because of this, it is now very important to analyse how much of the electricity produced will be consumed on site.  The value of displaced electricity – in terms of overall energy costs – is now five times more valuable than the FiT and twice as valuable as exported electricity.  Based on today’s rates, the same 100kW system, using 100% of the produced electricity on site, will now achieve a payback of 7 years; if all the electricity was exported, however, the payback period could stretch out to 13 years.

It is no longer in the client’s interest just to match the PV output to the necessary carbon savings; designers must also consider the times that a building will be occupied, what the electrical demands are whilst occupied, and the demand when unoccupied.  The occupancy of many buildings is significantly reduced over the weekends and holiday periods which can equate to 30% of the available time; schools, for example, are operating at reduced levels for nearly 50% of the year, including the summer months when solar output is at its peak.  When PV is sized to meet a building’s full carbon reduction targets it is likely that at times the electrical demand will be lower than the PV output.  Any periods when the electricity produced is not consumed on-site increases the payback period away from 7 years towards 13 years.

If a portion of the electricity produced by PV will not be used on-site, then it should be compared to a CHP system to reduce the building’s carbon emissions by an equivalent amount to meet Part L and other local requirements.  A 100kW PV system would typically reduce carbon emissions by 46,000 kg.  Similarly, a 25kW electric CHP unit operating for 7500 hours a year would increase the gas related carbon emissions by 50,000 kg, but reduce the electricity related emissions by 97,000 kg; the net effect is equivalent to the PV system.  It is assumed for the CHP system that all of the electrical output, which has much lower peak magnitude than PV system, can be used on-site.  A 25kWe CHP system, when correctly designed – as in the above example – to achieve over 5000 run hours, can deliver a payback period of between 6.5 and 10 years.

Although the range of payback periods are similar for both systems, the characteristics of each individual building will determine which technology is more suitable.  For a given building either system may provide a 7-year payback, but it is likely that only one will.  The actual payback period is affected by the installation and the energy demands of the building; the installation is governed by the physical size, construction and location of the building.  Planning constraints, building orientation, and roof area may limit the location and size of a solar array and reduce PV overall effectiveness.  Conversely, buildings with limited plantroom areas are not best suited to systems that require large quantities of thermal storage unless some of the equipment can be located outside of the plantroom area.  The construction of the building, therefore, has a direct impact on the installation costs and energy contribution which determine the payback period.

It is likely that the energy demands of the building will suit one technology more than the other.  CHP only offers value when it runs, and it can only run if it can make use of the heat.  CHP systems are therefore more suited to buildings with year-round heat demands which can make use of the thermal energy produced.  Residential buildings with significant DHW usage such as hotels, university accommodation blocks, prisons, and care homes fall into this category, as do buildings with fixed loads such as leisure centres.  Solar PV offers the most value when the building consumes the produced electricity.  Since it produces more electricity in the summer, it is the most appropriate choice for buildings with high summer electrical demands such as air conditioned offices and retail.

There are many factors that must be considered by the designer when choosing the best method of achieving Part L compliance.  With the current Feed-in Tariffs, PV and CHP systems can both provide a good rate of return on investment, but one is likely to stand out as the best choice for each individual building.  At the design stage, consideration should be given to the uncertainty of PV incentives for long-term projects and the associated risk to the financial case if the incentives change before completion of the building.  Today, many projects are more suited to CHP than PV but, if it is correctly analysed, the building will choose its own technology.  Many projects today are more suited to CHP than PV but, with sufficient analysis, the design of the building itself should guide designers to the technology required to achieve the best engineered solution.

CIBSE April 2017: TOTEM m-CHP at Rugby School

The Adveco TOTEM features in the April 2017 Supplement to the CIBSE journal on the topic of education facilities. The article highlights the installation of a TOTEM T20 m-CHP system at Rugby School Sports Complex in Warwickshire during renovations in 2016.

At Rugby School, the ageing heating and hot water system was replaced with a new and improved installation featuring an Adveco TOTEM T20 m-CHP and 5 Upsilon condensing boilers. The very high efficiency of the new system provides the building with valuable energy savings and significantly reduces overall carbon emissions. With 8,000 operational hours per year, the TOTEM T20 is estimated to have generated equivalent fuel savings of £1,018 per month since its commissioning, and is additionally projected to reduce the building’s emissions by over 51 tonnes of CO2 and 123.8 kg of NOX per year.

For more information, a complete case study featuring Rugby School can be found here. The April 2017 CIBSE journal supplement article can be viewed online at the CIBSE journal archive located here.