What is ErP?

All Kensa’s ground source heat pumps display labels showing their energy efficiency performance under the ErP (Energy-related products) directive.

ErP stands for ‘Energy-related products” and from the 26th September 2015 under EU regulations ground source heat pumps (as well as air source heat pumps, boilers and water heaters) are required by law to have labels to show their energy performance as an individual product and when part of an overall heating system.

Many of us will be familiar with this idea for other home appliances such as fridges, cookers, and televisions.

ErP means that you can now easily see how efficient your ground source heat pump system will be compared to other manufacturers in a clear, familiar and understandable way, allowing you to make an informed judgement and select the best equipment to maximise the efficiency of your heating system.

Download FAQ's on ErP

What is my ground source heat pump's ErP rating?

All ErP compliant products (including all of those manufactured by Kensa) must display an ErP product label which indicates the product’s ErP rating.

When installed, the ground source heat pump and the components making up the total heating system (i.e. heating controls, and if used solar thermal and a supplementary boiler etc) will be given a ‘package’ label which confirms the whole packages ErP rating.

Alongside these labels, customers of ground source heat pump systems will also be provided with two technical documents called fiches (a product fiche and a package fiche).

Visit the Installer's ErP resource

Will ErP have any effect on RHI payments?

Up until the 26th March 2016 the star rating (or SPF) of your heating system according to the Heat Emitter Guide can continue to be submitted to Ofgem to calculate your RHI payments; see our guide on getting the best star rating for your system to get the best RHI payment – click here.

After the 26th March 2016, the MCS installer of your system must only use a system seasonal coefficient of performance (SSCOP) figure, which is based on the ErP testing, to replace the SPF currently calculated using the Heat Emitter guide.

It is your choice if you use the figures from the Heat Emitter Guide or the SSCOP up until the 26th March 2016; after this date you must only use the SSCOP figure.

Depending on the flow temperature in some cases the Heat Emitter Guide will provide a better payment value than using a SSCOP figure, particularly for ground source as they have a more stringent testing regime than air source heat pumps.