Skip to main content

SAP / EPC UK Property Ratings

Earth Save Products can be installed retrospectively to improve SAP ratings within a property.

We are regularly contacted by potential Clients for help with improving the energy efficiency of an existing house. Our products can be retro-fitted to help your property achieve a higher SAP/EPC rating and lower running costs. The Clients range from individuals renovating their house, through to large construction companies/Mechanical and electrical contractors.  They all have a common need to improve the energy efficiency of what they are building or renovating.

Our Ecocent hot water unit is ideal for improving energy efficiency – it is easy to install and uses waste heat from the building to produce hot water at up to 60 deg C.  The units range from 100ltr to 300ltrs in various styles. They replace a traditional cylinder and use air source heat pump technology to heat the water incredibly efficiently – for every 1kW of electricity used, it delivers 4.5kW of heat to the water (even at 60 deg C). Because the Ecocents are the hot water cylinder as well, the marginal cost of the unit over a traditional cylinder is low; making the investment decision pretty straight forward (when replacing an existing cylinder or for a new build).

Renewable Heat Incentive (RHI)

The Ecocent can also be used as a central mechanical extract ventilation unit and is qualified under Building Regs as a Category 3 ventilation unit.  The unit can be used to deliver centralised mechanical ventilation and will use heat from the ventilated air to heat the hot water (thereby recovering heat that would otherwise be completely wasted).  The unit is listed in SAP for both the ventilation and hot water generation duties and the system costs a fraction of what a whole house ventilation and heat recovery (MVHR) system would cost.

There are no other units like the Ecocent listed in SAP and they are a relatively easy and low cost way to improve SAP and EPC ratings.  The unit’s efficiency and effectiveness has also enabled it to win multiple prestigious national awards.

What is SAP?

This is a method used within the UK to assess the energy performance of buildings. SAP stands for Standard Assessment Procedure. This was introduced as part of the government’s environmental policy which aims to reduce the carbon footprint of the UK a greener country by reducing carbon emissions.

How SAP works?

SAP (Standard Assessment Procedure) is a process by which the energy efficiency of a house is calculated. The process takes all energy aspects (uses and generation) of a house/building in to account (heating, hot water, ventilation, lighting, etc) to come up with an overall efficiency rating of a house/building.  This informs the EPC rating of the house and directly impacts amounts payable under the Renewable Heat Incentive Scheme and can also directly impact the selling price of a house – the better the performance rating of the house/building, the higher the selling price tends to because the higher the rating, the lower the running costs.

You can find out more about SAP on the government website.

Ecocent SAP Recommended Input Guide

SAP Input Instructions for entering hot water from an Ecocent Cylinder and MEV

Because of the number of enquiries we get about using the Ecocent as an MEV system in SAP software, we have devised this guide using the PCDB database numbers and highlight the various sections into which they must be entered: (Elmhurst ref)

PCDB Database numbers:

  • 200L Ecocent 190001, MEV 500487
  • 300L Ecocent 190002, MEV 500488
  • Maxi Ecocent 190003, MEV 500489

Section 19 (MEV) – Specify MEV – Centralised, MV reference number as above serving the relevant number of wet rooms.

Section 25 (Main Heating 2) – Specify reference as above (190001 etc as appropriate).

Section 28 (Water Heating) – Specify from Main Heating 2

This should allow the correct entry of the Ecocent as an MEV/EAHP System.

Complete Range of Heat Recovery Systems

Hot Water Solutions

Multi-award winning Ecocent system recovers heat from used air and provides hot water at 60°C.

Underfloor Heating

You can now heat your property efficiently with an Earth Save Products underfloor heating system.

Air Source Heat Pumps

Our range of Air Source Heat Pumps deliver low cost heating solutions and reduced energy bills.

Heat Recovery

Air ventilation normally leads to loss of heat in a property. Our MVHR system recovers heat in your property.

Our Awards