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A standard immersion runs on electricity alone. A Stiebel Eltron hot water heat pump uses that electricity to move heat from the air, producing three to four times as much hot water for the same cost.
The heat pump draws most of its energy from ambient air rather than converting electricity directly to heat. Lower running cost, same reliable hot water.
PV connection is integrated as standard. Excess solar generation is routed automatically to heat your water — zero waste, no extra kit required.
The integral impressed current anode eliminates the annual anode replacement required on traditional cylinders. Less maintenance, longer service life.
As Ireland's exclusive Stiebel Eltron partner, we supply and install the full DHW range, indoor, outdoor and compact outdoor models. We recommend the right unit based on your space, household size and existing system during your free consultation.
Air source heat pumps extract energy from the ambient air outside your home. Installed outdoors, on the ground, wall-mounted or on a flat roof, they are ideal for most new builds and retrofits, with no ground works required. Built to withstand Ireland's Atlantic coastal conditions. Air source models operate down to -25°C and can provide both heating and cooling.
A flexible hot water heat pump with ducted air connections, allowing installation with outdoor air or waste heat from an adjacent room. Delivers hot water up to 65℃, is PV-ready and SG Ready for future smart grid integration. Maintenance-free cylinder protection ensures long-term reliability.
An all-in-one indoor unit combining heat pump and hot water cylinder. Draws ambient heat from the installation room, including waste heat from your heating system. R290 natural refrigerant. App and rotary selector control. Works with any heating system already installed.
The outdoor version for homes where internal space is limited. The heat pump unit sits outside while the integrated cylinder installs indoors. Same R290 refrigerant and high COP as the indoor model, app-controlled, PV-ready.
A self-contained outdoor unit with heat pump and cylinder combined in one compact footprint —nothing required indoors. Operates down to -5°C, making it reliable year-round in Irish conditions. Extremely quiet at 45 dB(A). PV-ready and LCD-controlled, with a maintenance-free impressed current anode as standard.
A compact, self-contained outdoor unit with integral cylinder — heat pump and hot water storage in one footprint. Extremely quiet at 45 dB(A). Operates down to -5°C, making it suited to Irish Atlantic conditions year-round. LCD display, PV-ready, maintenance-free impressed current anode
Every Stiebel Eltron DHW system includes the following as standard. Nothing is an optional extra.
Routes solar surplus automatically
Monitor and schedule from anywhere
Automated thermal disinfection
System adjusts automatically to occupancy and conditions
Extendable to 7 years with service log
Nutherm installs and commissions both your heat pump and hot water system. Because both are Stiebel Eltron, they are fully integrated from day one - one control system, one service agreement, one point of contact.
We survey your home, check available space and confirm the right cylinder size for your household's hot water demand.
We design the hot water system alongside your heating setup - integrated controls, PV connection and pipework planned together.
Our trained team installs and connects the unit, integrating it with your heat pump and any existing solar PV.
We commission the full system, set your schedules and app controls, and walk you through how it works.
"We'd been putting off switching from oil for years. Nutherm made it straightforward, existing radiators, no major disruption, and the running costs are well down."
"The old boiler was costing a fortune. Nutherm assessed the house, recommended the right system, and had it installed within the week. The SEAI grant process was handled for us too."
"Over five years, Nutherm have consistently delivered across a wide range of projects. Their workmanship, attention to detail, and technical coordination from design stage through to installation are exceptional. We recommend Joe and the team without hesitation."
"Nutherm were involved from the foundation stage and made the whole process seamless. The system has been running perfectly since we moved in."
"We built with Nutherm specifying the heat pump from day one. No chasing multiple contractors — one team handled everything. Exactly what you want on a self-build."
"Nutherm have been servicing our system every year since installation. One call and they're booked in, never had a problem that wasn't sorted the same day."
"Had an issue on a cold January morning. Joe's team were out within hours. That kind of response is why we've stayed with them for seven years."
"The annual service gives us complete peace of mind. They check everything, explain what they've done, and the system runs perfectly year after year."
"Nutherm handled the design, installation, and commissioning of our heat pump and heat recovery system with great professionalism and technical expertise. Always available when we had questions. Highly recommended."
"The difference in air quality since the heat recovery system was installed is noticeable immediately. No condensation, no stuffiness, the house just breathes properly now."
"We were sceptical about ventilation at first but Nutherm explained everything clearly. A year in and we wouldn't be without it."
"1st class job done by the lads in Nutherm in installing our Stiebel Eltron geothermal heat pump. They were always on time when planned and left the place clean and tidy. Would highly recommend them. Happy customers"
"The quality of workmanship was exceptional, with every detail completed to the highest standard... communication was excellent throughout...highly skilled plumbing and heating company, we would not hesitate to recommend them."
"Nutherm Galway were by far the most professional and reliable contractors we worked with. Their team went above and beyond to make sure everything was done to perfection, and we couldn't more satisfied with the results. The best tradesmen that entered our house throughout the entire project. Highly recommend them!"
"We have been a customer of Nutherm Galway since 2007. During that time, we have enjoyed a really warm and comfortable home and have always been really well looked after by the Nutherm Galway Team, whenever we needed any help."
"When it came time to replace our old geothermal system, Joe and Nutherm were our only call. They handled everything from design through to installation. The house is always comfortable, bills are significantly lower -and our daughter liked the results so much she had Nutherm install her system too." Joe Curran — May 2026
