Get up to NZEB with Grant heat pumps

Get up to NZEB with Grant heat pumps

High efficiency is a hugely important factor in choosing a heating system and this is a key priority for industry leading manufacturer Grant, whose wide portfolio of heating technologies has advanced over the years and now includes air source heat pumps, underfloor heating, pre-plumbed hot water cylinders, aluminium radiators and fan convector radiators.

This article was originally published in issue 35 of Passive House Plus magazine. Want immediate access to all back issues and exclusive extra content? Click here to subscribe for as little as €10, or click here to receive the next issue free of charge

Grant says its A+++ Aerona3 R32 air source heat pump range is the manufacturer’s most sustainable main heat source and is an ideal option for properties of varying sizes, and for deep retrofits. The company said this air-to-water heat pump range is extremely popular amongst Ireland’s self-builders, as the units can help to achieve nearly zero energy building (NZEB) standards.

Available in outputs of 6 kW, 10 kW, 13 kW and 17 kW the Grant Aerona3 R32 inverter driven air source heat pump range offers cleaner, more environmentally friendly performance, and can lower a property’s overall carbon footprint and annual heating bills, the company said. All four models also boast “superior” seasonal coefficient of performance (SCOP) figures.

According to Grant, even if external temperatures were to drop as low as -20 C, the heat pump’s output will modulate up or down depending on the exact climate conditions to ensure ultimate energy efficiency for the property. As the Aerona3 R32 air source heat pump can run at both high and low temperatures, it can work in tandem with other technologies featured within Grant’s ‘multiple package solutions’ offering, including the Uflex underfloor heating system.

When paired together, the Aerona3 R32 air source heat pump and Uflex will improve the overall efficiency of a new build or deep retrofit property as both can run at lower temperatures, therefore providing significant carbon and financial savings for the property owner.

The Grant Aerona3 R32 13kW and 17kW models have also been recognised by Quiet Mark for their quiet operation. Quiet Mark is the international award programme validating and awarding low-noise, high-performance technologies.

Visit for more information on Grant’s range of innovative heating solutions.