We’re excited to announce a brand‑new feature on the Ensign website — an Interactive Heating Costing Calculator designed to help users explore the true cost and carbon impact of different home‑heating options. This has been developed by WP3 – Heat Sub Digital Twin team at the University of Liverpool.

This easy‑to‑use tool provides an estimate of annual space‑heating demand for a typical UK home and compares the expected running costs and CO₂ emissions for three systems:

  • Gas boiler
  • Electric resistance heater
  • Heat pump

Simply enter:

  • Building type
  • SAP energy band
  • Floor area
  • UK city
  • Your current electricity and gas prices

The calculator then uses Heating Degree Days and a heat‑pump performance model to estimate annual electricity use, yearly costs, and carbon emissions — giving you a clear, data‑driven picture of your options.

Try the tool out today and let us know what you think!

Interactive Heating Costing Calculator

Your feedback helps us make it even better.