Download Spreadsheet:
Click here: Air-Powered shower spreadsheet
SAP Model Qualifiers
Deluxe Shower Panel – 93XXXXX5
Void Shower System – 91XXXXX5
Test Calculations
Test calculations have found that replacing a conventional mixer shower with our Air-Powered shower can help achieve compliance with Part L of the Building Regulations* and, as less water is used, it can also help with Part G.
Download the SAP Appendix Q spreadsheet. Please consult our guidance notes if you have any queries.
Part L*
- Reduced DER and DPER by up to 10 percentage points.
- Achieved minimum emissions and primary energy targets with up to 2 PV panels fewer.
And, when connected to WWHRS (System A):
- Reduced DER and DPER by up to 27 percentage points.
- Improved SAP score by up to 2 points.
- Achieved minimum emissions and primary energy targets with up to 4 PV panels fewer.
Part G
- can help reduce the dwelling consumption of potable water to 105 LPPPD as required in Building Regulations in 2025 (using the fittings-based approach). In fact, along with other efficient water fittings it is possible to reduce water use to 75 LPPPD.
- can help qualify for a water efficiency discount of up to £280 per plot (applied to infrastructure charge by water and wastewater companies). Please find further information here: https://www.ofwat.gov.uk/environmental-incentives-to-support-more-water-efficient-new-homes/
While lowering homeowner water and energy bills by around £385 per year**.
* Results based on a two-storey, three-bed semi-detached or end of terrace dwelling, in which space and water heating are provided by a mains-gas combi boiler. One bath and one shower only.
** According to Energy Saving Trust.