About Us

Igen is the only company in the UK and Ireland that specializes in offering a complete heat pump solution.  From the outset over 10 years ago we recognized that heat pump technology offered the best way of capturing and reusing renewable energy for space heating and dhw hot water.  We also recognised that this could only be completely successful by having the best products and a focused approach to ensure that the solution is designed and implemented correctly.

Over the past 10 years we have completed hundreds of igen heat pump installations throughout Ireland & the UK. In over 95% of these installations the heat pump provides all the heating and dhw hot water without the need for any oil or solar back-up.   In the case of a retrofit we can integrate the igen heat pump solution with the existing heat system & effectively eliminate your oil bill.  Our expertise has been developed over 25 years involvement in developing solutions for heating.


1986 – Design & manufacture of the ‘Tidy Tim’ range of heating storage products

1991 – Product design of heating products for Glen Dimplex UK & Ireland

1996 – Heating Product Development for Dimplex North America & Vermount Castings

1999 – ‘Monvallet Enterprises Ltd’ established for design & manufacture of heating components

2001 – Specialization in heating systems & heat pump solutions for buildings

2003 – ‘Ecotherm Environmental Solutions Ltd’ incorporated as heat pump specialist

2004 – Collaboration with CREDIT on renewable technologies solutions

2006 – Launch of Igen brand

2007 – European heat pump trainer for Ochsner Austria

2009 – Enhanced representation of Ochsner heat pumps in UK

2010 – Completion of Enterprise Ireland funded study with CREDIT

2011 – Launch of igen new website for UK & Ireland

If you want to read more please select pdf's to download below.
One Year Monitoring Case Study
EHPA Newsletter
Ecotherm Brochure
Air Source Heat Pump Performance in Ireland Study