Why does my water pressure keep dropping after retrofitting a heat pump?

Engineers working on heat pump piping
(Image credit: Getty)

If you've found that your water pressure has dropped after installing an air source heat pump into your existing home — there's a simple solution.

But first, let us explore the cause and why this problem tends to happen after retrofitting an air source heat pump and not so often when installing one in a newly-built property or home that has been completely re-plumbed.

David Hilton

David is a renewables and ventilation installer, with over 35 years experience, and is a long-standing contributor to Homebuilding and Renovating magazine. He is a member of the Gas Safe Register, has a Masters degree in Sustainable Architecture, and is an authority in sustainable building and energy efficiency, with extensive knowledge in building fabrics, heat recovery ventilation, renewables, and also conventional heating systems. He is also a speaker at the Homebuilding & Renovating Show. 

Passionate about healthy, efficient homes, he is director of Heat and Energy Ltd. He works with architects, builders, self builders and renovators, and designs and project manages the installation of ventilation and heating systems to achieve the most energy efficient and cost effective outcome for every home.