Header Image

Residential Passive House

Project 1. Certified Passive House with 2 year data-logging.

Floor Area 180m2, Timber frame Certified Passive House in Co. Kerry.
Compact P with 2KW (JVP2) geothermal heat pump and underfloor heating.

Team Members: Maurice Falvey, Designer and Supplier of Compact P heat pump
Certified Passive House in Kerry with installed Nilan Compact P heat pump cost €273 per year to run. Whilst maintaining +20degC in the house, all domestic hot water heating at +50degC and ventilation / passive heat recovery including air heating via Air-to-Air heat pump.



Passive House Association of Ireland, Briefing video link.

Link to Report; Nilan Ireland _2 years monitoring of CPH Kerry_13th See The Light.

2 KW output geothermal heating module was integrated in to Compact P and was connected to a zoned underfloor heating system as back up to Air-to-Air space heating system. This was only switched on for 3 months and operated in hallway and a bathroom , however, at all times the warm air heating was primary heating source.

SERVE Conference 2012 – Pathways to 2020 Presentation

Download presentation here: Passive-House_Kerry

There was no stove installed in the house, so all energy consumed was relating to electrical consumption.

The interesting fact from 2 years of monitoring, the summer by-pass valve was open for 46% of the time meaning that the house was in a ventilation mode. At least the Compact P can produce domestic hot water from exhaust air and not all the exhaust energy was wasted as you would typically find in standard MVHR unit.

Link to feature; Kerry’s Eye on Certified Passive House in Kerry

The Engineers Journal link; http://www.engineersjournal.ie/heat-pumps-carbon-emissions-ireland/

Project 2. Passive Designed House & RTE House of Year 2015

Link to feature; Passive House Plus feature – Passive House in West Cork with Compact P + Geo3
RTE House of the Year….2015                                                                                                            – Passive House is winner…! http://www.evoke.ie/extra/rte-home-of-theyear-winner/                                                                                                                                           RTE Player Final Link:-  http://www.rte.ie/player/ie/show/10418751/

184m2 Treated Floor Area ICF house in West Co. Cork. Uw 0.145, Uf 0.127, Ur 0.142 Ug 0.8w/m2k Design by Architect Donn Ponnighaus and project managed by Donn. Installed Compact P with Geo3 (3KW geothermal heat pump) as back up with underfloor heating in living room and bathroom on ground floor.
2014-05-14 16.04.31 2014-05-14 15.14.44

2014-05-14 18.24.58 2014-05-14 18.25.52

2014-05-14 16.07.11 IMG_2562

Project 3. Passive Designed House

235m2 Treated Floor Area, externally Insulated wall with 250mm insulation, 300mm floor insulation and 400mm cellulose insulation in attic with triple glazing pvc windows from Munster Joinery. Air tightness 0.56ACH N50. Design by Tim Horgan (Passive House Designer) and built by Tommie Finnegan,  Design criteria; not to exceed a heat load 10w/m2 on coldest day (2.35KW).!. Installed Compact P with 2KW back up duct heater (duct heater is deactivated) and living room wood pellet stove. There is no underfloor and no radiator system in building and building has maintained +20C in winter 2014.

IMG_5138 IMG_5141

IMG_5154 IMG_5148

IMG_4041 IMG_4220

Homeowner Testimonial

Compact P heat pump with 2KW back up duct heater and a pellet fuel in living room.

When we started planning to build in 2008 we never thought we would end up in a passive house – in fact, we didn’t even know what a passive house was. Delays of almost 2 years in planning meant we had a lot of time to research building methods and it was this reading in the Passive House magazine that led us to Maurice Falvey (who designed/supplied our heating system) and in turn Tim Horgan, and Tommie Finnegan who built the house for us.

All through the build we had our doubts. Like most Irish people we were terrified of being cold. We had lived in a house that was impossible to heat for 5 years and with an immersion water heating system that had to be assisted by kettles of boiling water just to have a bath. How different could we expect the new house to be?

On moving in in February 2014 we were completely won over by the system. Everything Maurice predicted came through. We now have a constant temperature throughout the house and spend our time in t-shirts. We have so much hot water that we offer guests tea, coffee or a shower and we get great joy in watching people strip off their layers of winter clothing when they come to visit. The running cost of the Heat Pump is so small that is almost insignificant – an insignificant cost for the most significant detail of the house.

Would I recommend Maurice and his system ! Without a doubt and with my hand on my heart, I can say that the Nilan system has changed our way of living. Not a day goes by when I am not thankful for the building choices we made, often guided by Maurice and Tim. We are living the dream and summer is no longer my favourite day of the year – summer temperatures in our house is the norm, not the exception.

Thank you Maurice.

Angie, Lei, Ri-Ann and Regan

Project 4. Passive Designed House

Area 132m2 Timber Frame by Architect Miles Sampson http://www.milessampson.com/ for Jeff & Clair’s project (by MBC) in Co. Cork. Compact P with 2KW back Up Duct Heater (no stove installed) ESB Bill €1,200 complete cost for building ! 2 adults and 5 kids.
2013-10-09 15.02.35 2013-10-09 15.01.52Miles-Sampson-3 Miles-Sampson-2

Project 5. Low Energy Barn starting in Inverin

design by Lester Naughton RIAI Architects and Built by GeenTec – Niall Dolan

Screen shot 2014-04-02 at 21.00.03.png





Project 6. Passive Designed House

Timber Frame by Shoalwater Timberframe, Wexford http://www.shoalwater.ie/index.html Comfort 250T passive heat recovery with solid fuel stove. Air Permeability rate 0.22m3/hr/m2  or 0.01 ACH.Nilan Comfort 300T with NiLAIR ducting system. IMG_2096

Project 7. Passive Designed House – Timber frame

By Architect Miles Sampson http://www.milessampson.com/  Contractor Niall Dolan http://www.greentec.ie/



IMG_7729 IMG_7708


Project 8. Passive Designed House280m2

Passive Designed home by Micheal Murtagh project management. Compact P with 2No Duct heaters as back up to GF & FF. Building in Co Louth and PHPP provided by Mosart  http://www.mosart.ie/index.html

2013-09-28 12.29.48 2013-09-28 12.30.17

 IMG_3191 IMG_3186

IMG_5466 IMG_5470

Project 9. Passive Designed House (under construction)

By Architect Cuala McGrann of Westport, Co. Mayo. www.mcgannscahill.com

Project 10. Passive Designed House

Green Air Technologies  http://www.greenairtechnologies.ie/ in Glenfarne Co. Leitrim. Compact P (415 version) with Daikin Alterma 6KW A/W heat pump. Engineer and specifier, Derrick Healy TME Services http://tmeservices.wix.com/tme-services
2013-09-27 19.08.06 2013-09-27 17.41.40

2013-09-27 17.41.52 2013-09-27 17.42.54

2013-09-27 17.41.40 2013-09-27 17.43.16

Project 11. Passive Designed Houses (under construction)

By Architect Miles Sampson http://www.milessampson.com/  Contractor Niall Dolan http://www.greentec.ie/


IMG_8482 IMG_8484


Passive Designed Houses

By Architect, James Murphy O’Connor of Boyd Barrett Murphy O’Connor http://www.bbmoc.com/


IMG_0789 IMG_0792
IMG_5478 IMG_5479