- The size of the house
- The construction materials used
- Ventilation and lighting
- Efficiency and control of the heating and hot water systems
- Insulation and air tightness of the house
How do SAP ratings work?
A rating is awarded on a scale of 1 to 100. The higher the number, the more energy efficient the dwelling is based on a national standard.
Every new house must have a SAP rating.
Can I improve my SAP rating and save money on energy bills?
A high efficiency boiler is more energy efficient and can produce higher ratings than a traditional boiler - in some cases by up to 10 points.
