ELECTRIC.IE • The Magazine & Website for the Irish Electrical Industry • 33 LEDGVRANCTE Integrating Heat Emitters with Heat Pumps For electrical contractors working on new-build and residential projects, coordination between heating system design and electrical installation is becoming increasingly important. As air-to-water heat pumps are more widely specified, early understanding of the selected heat emitters ensure smoother wiring, zoning integration and long-term system performance. While heating contractors typically install underfloor heating and radiators, the emitter strategy directly influences zoning controls, actuator requirements and overall system efficiency – all areas that involve electrical coordination. Close collaboration at design stage helps avoid on-site complications and supports compliant, future-ready installations. Grant’s integrated heating packages offer versatile heat emitter options designed to operate efficiently with lowtemperature heat pumps. These include the Grant Uflex underfloor heating system and the Grant Afinia aluminium radiator range, which are both supported by Grant’s free heating design and specification service. Grant Uflex Underfloor Heating System The popularity of underfloor heating has risen considerably in recent years, particularly in new build homes. Designed to operate at lower flow temperatures, underfloor heating works efficiently with heat pumps, supporting consistent comfort levels and long-term energy savings. - What Electrical Contractors Need to Know. Uniform heat distribution and stable operating temperatures make it well suited to modern, energy efficient homes. Grant Afinia Aluminium Radiators For projects where radiators are preferred, the Grant Afinia range offers a flexible alternative heat emitter option. These aluminium radiators are lightweight, slimline and offer excellent conductivity compared to traditional steel radiators, resulting in quick heat-up times and efficient heat transfer – even at lower system temperatures. Available in both vertical and horizontal configurations and expandable from 6–20 panels, the Afinia range provides flexibility to suit different room dimensions and heating requirements. Like the Uflex system, Afinia radiators are sized and specified as part of Grant’s free home heating design service to ensure correct performance and regulatory compliance. The Grant Uflex underfloor heating system is particularly suited under tile and hardwood flooring in kitchens, bathrooms and open plan living areas. Each system is designed bespoke for every room, based on flow rates and in-depth room-by-room heat loss calculations. This professional heating design service is provided free of charge, helping project teams save time while ensuring systems align with building regulations and supports NZEB standards when paired with a heat pump. From an electrical perspective, underfloor heating systems typically involve manifold controls, multiple zone actuators and programmable thermostats. Understanding the zoning layout at design stage allows electrical contractors to plan wiring routes, control integration and commissioning requirements more effectively. The Uflex system uses durable 75mm pipework laid in screed and controlled via a manifold, with availability for multi-zone control. Grant UFlex Underfloor Heating. Next Page..
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