Adveco’s Packaged Hybrid Hot Water System, PPR0008 With ADVS-W Heat Pump, Named National Heat Pump Award Finalist

Adveco’s PPR0008 with ADVS-W ASHP, a packaged offsite constructed low-carbon hot water system, has been named as a finalist in the commercial air-to-water product of the year category of the prestigious 2026 National ACR & Heat Pump Awards. The awards showcase the year’s standout achievements, recognising and celebrating excellence across the HVACR industry.

The implementation of complex plant equipment, such as high-capacity and business-critical systems required for domestic hot water (DHW) applications in commercial buildings, is inherently challenging. This was an issue faced by restaurant clients, where both refurbished city sites and new drive-through properties needed to meet corporate sustainability goals whilst also maximising kitchen and dining space within any given property. As a long-time partner developing DHW services for the hospitality sector, Adveco designed and began providing in late 2025 the PPR0008. This compact, reliable, cost-effective, offsite constructed system (OSCS) for low-carbon electric hot water is built around Adveco’s ADVS-W ASHP and award-winning FUSION hybrid packaged water heating concept. The entire pre-built system comes in a 2.8×1.2×1.4 m weatherproof GRP house ready for immediate rooftop installation on delivery.

The key elements of the PPR0008 system are the 10kW ADVS-W ASHP, ARDENT P12 electric boiler, a pair of ATSI 210-litre hot water calorifiers, backup immersion and bespoke controls. The system is supplied pre-fitted, complete with all internal pipework, including lagging, unvented system equipment, pumps, valves, gauges, controls, and internal mechanical and electrical connections. The two ATST cylinders are connected in series in a preheater-after-heater arrangement. The ADVS-W air source heat pump (ASHP) is mounted externally to the GRP house, providing low-grade renewable heat into the coil of the preheat tank.

Why is a heat pump important in a packaged hot water system?

The ADVS-W series of air source heat pumps is designed specifically to provide pre-heat to domestic hot water (DHW) systems in commercial buildings. They actively reduce carbon emissions from ubiquitous systems, which can alone account for as much as 30% of a building’s daily energy consumption. Hybrid systems have the potential to be complex and come with greater capital expense, especially at a commercial scale. Adveco’s ADVS-W counters this with a far more compact monobloc form factor to lower entry costs for ASHP-based water heating and drive the uptake of sustainable systems across restaurant properties, including older buildings requiring refurbishment without large-scale and costly electrical upgrades. Deploying the single-phase 10 kW variant, the ADVS-W, with a high 5.2 seasonal COP provides 9.50 kW of heat input at 7°C outdoor temperatures and 6.95 kW at -7°C outdoor temperatures (it will remain effective with ambient air temperatures as low as -25°C.)

The ASHP uses low-GWP R32 refrigerant to minimise the environmental impact of the installation while extracting ambient heat from the outdoor air to preheat the incoming cold mains water for a continuous heat output at 60°C for a 55°C working flow. Able to account for up to 70% of the DHW load, this is sufficient to validate a hybrid system approach to deliver critical assured service, with water heated to approximately 50°C in the preheat tank. With 420 litres of storage and allowing for the lower, slower reheating form the ASHP, recovery time is still just an hour, even during peak periods of demand.

Multiple layers of operational protection, including alternative cycle duty/defrost­ing operation, back-up functionality and anti-corrosion protection, ensure long-system life and assured delivery of highly efficient pre-heat. By avoiding integration issues of CO₂-based heat pumps and safety concerns over with propane alternatives, currently the R32-based ADVS-W leverages the most established, well-understood, safest, and still environmentally friendly refrigerant for a DHW heat pump. It also allows Adveco to maximise the PPR0008 form factor in line with our preferred application design for high sustainability, low capital investment DHW systems that are easily integrated into either existing or new build properties, optimising and reducing demands for high-carbon fossil fuels or the more expensive grid electrical alternative.

How are the particular needs of commercial hot water addressed with hybrid electric water heating?

High temperature primary heating is still required to meet explicit peak water heating demands during the daily operation and achieve the +65°C system temperatures required as part of a regular anti-legionella regime. PPR0008 with ADVS-W also employs an ARDENT P12 electric boiler connected to the coil of the after-heater tank to provide up to 12 kW of high-grade heat to bring the water in the hot water tank up to the desired use and storage temperature. The electric boiler uses the sealed primary loop to greatly reduce the common issues of element wear and limescale build-up in the hot water tank. The after-heater tank is also additionally fitted with a reserve 9 kW direct electric immersion heater to serve as a backup heat source for system redundancy.

The PPR0008 with ADVS-W system also features a wall-mounted control panel to provide power and switching to the installation, ensuring a seamless integration of all components, as well as a GSM-based fault output system to alert building and maintenance services in the event of a primary appliance fault. In such an eventuality, the panel will additionally and automatically activate the backup direct electric immersion heater in the after-heater tank, providing a reserve level of hot water to prevent the system from running cold. Twice per week, a time clock connected to a destratification pump will sterilise the entire system as a method of automated legionella prevention.

Why adopt an offsite constructed approach for commercial water heating?

With the entire water heating plant built, plumbed, and wired within a controlled factory environment, Adveco can offer gains in quality, efficiency, and safety. By offsetting as much of the primary heating as possible with the ASHP, the PPR0008 can reduce demands for expensive grid energy and drive carbon savings in the electrical system.

The hybrid PPR0008 with ADVS-W heat pump, electric water heater and control system presents an attractive option for commercial projects, offering a compact, highly efficient means of operating at a higher temperature grade, as well as remaining effective at very low temperatures, for considerable carbon savings. On delivery, all that needs to be done is for the installer to connect external electrical and plumbing connections between the building and plant, meaning water heating can be up and running within days of delivery on site.

The winners of the National ACR & Heat Pump Awards 2026 will be announced this June.

Discover more about Adveco’s offsite constructed water heating systems for commercial projects.