ELECTRIC.IE • The Magazine & Website for the Irish Electrical Industry • 19 L E D VAGNRCAEN T Supporting Electrical Contractors with Smarter Heating Design and Controls Getting heating design right from the start makes a real difference once a project reaches the building site. For electrical contractors, accurate heating system design provides a clearly defined specification, supporting the coordination of wiring, zoning and control integration whilst helping to avoid on-site queries and late-stage revisions. As air-to-water heat pumps are more widely specified across new-build and residential projects, early understanding of system design and control strategy is becoming increasingly important. Close collaboration at design stage supports smoother installation and commissioning, whilst ensuring systems operate as intended once occupied. Grant has advanced its digital design software used as part of the company’s Heating Design & Specification Service. The upgraded software enables Grant’s technical team to respond more efficiently to design enquiries, producing clearer, more detailed outputs, particularly on larger or more complex residential projects. As part of the free-of-charge service, Grant’s technical specialists carry out in-depth room-by-room heat-loss calculations, accurate sizing for radiators or underfloor heating systems, and complete pipework circuit layouts. Annotated schematics and layout drawings provide a clear heating system specification that can be reviewed and approved at an early stage, allowing electrical contractors to plan control wiring, zoning layouts and commissioning requirements more effectively. The calculation engine produces consistent, independently verified outputs, supporting alignment with recognised industry standards. The design service also supports compliance requirements, including the production of S.R. 50/MCScompliant heat-loss documentation, helping ensure heating systems are designed to meet relevant building regulations and NZEB performance requirements. At the centre of many new-build specifications is the Grant Aerona R290 air-to-water heat pump. Designed specifically for the Irish and UK climate conditions, the Aerona R290 uses natural refrigerant R290, which has a Global Warming Potential of just 3. With output sizes ranging from 4kW to 16kW, the range offers flexibility across a wide variety of property types. The Aerona R290 heat pump is operated by the Grant Aerona Smart Controller, which supports system performance through integrated control strategies. As a weather-compensated controller, it monitors outdoor temperatures and adjusts system operation to work at optimum efficiency. Quick and easy to install, the controller features user-friendly controls that allow homeowners to easily manage heating schedules, domestic hot water timings and room temperatures whilst installers can access system performance data to assist with diagnostics where required. For electrical contractors, understanding how smart controls interact with heat pump systems is essential. The Aerona Smart Controller works alongside room thermostats to provide advanced communication with the heat pump, adjusting output based on real-time demand rather than simply switching systems on or off. This supports improved system performance and helps ensure that heating systems operate efficiently once installed. By combining detailed system design with intelligent control, Grant’s integrated approach supports effective coordination between heating system design and electrical installation. Through clear specification, structured design outputs and responsive control strategies, project teams can deliver compliant, efficient and future-ready heating systems across modern residential developments. Visit www.grant.ie for more information on Grant’s range of innovative heating solutions. Follow Grant on Facebook @GrantIRL, Instagram @grant_irl and LinkedIn @GrantEngineeringULC. You can also subscribe to Grant on YouTube @GrantEngineeringIE. Grant Heating Design Software Grant Smart Heating Control
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