EPC-E, 1 Bedroom flat, Eastbourne East Sussex

Project Name

  • Client: University of Brighton
  • Date: Autumn 2023
  • Category: Retrofit Heating, Social Housing

Independent testing by University of Brighton

NexGen vs Direct Electric Panel Heaters

Pre-Installation Findings

Detailed findings based on convection air temperature sensor measurements:

Tenant Situation:

Hard to heat flat with high ceilings (3.6m or 12ft) and an EPC E rating.

Issue:

Tenant reported the sitting room and entrance hall failed to reach above 17°C (63ºF) on cold winter days in December ’22, with slow warm-up using convection-based electric wall radiators.

Supplementary Heating:

Client was using additional portable electric radiators on cold days, with the property showing high humidity levels.

Heat dissipation:

The property was ground floor with minimal solar gain and had a large bay window with high thermal losses.

Project Facts

NexGen vs Direct electric panel heaters

Independent testing by University of Brighton

Flat with high ceilings (3.6m or 12ft)

EPC E rating

Failing to reach above 17 degrees on cold days

Net Result

390 kWh

Average monthly consumption with Electric heaters / radiators


196 kWh

Average monthly consumption Post NexGen installation

NexGen provided a 50% energy consumption saving over the existing Direct Electric Heaters with no additional fabric measures 

Post-NexGen Installation Findings (no additional fabric measures)

NexGen Solution: FXPE Insulated foam backed IR heating elements

Efficient Heating: Delivered efficient cyclical and zonal heating.

Rapid Warm-Up: Quickly warmed up to the target temperature (e.g., 20°C in 75 minutes from designated cold start test – external 2°C).

Energy Reduction: 50% reduction in energy usage over 5 month heating season. Average monthly consumption 196 of kWh.

Comfort: Tenant defined comfortable heat at 19°C.

Humidity Control: Significant reduction in humidity.

Initial Support: System timed for two heating cycles per day, with manual app adjustments for comfort.

Stabilised Humidity: Humidity now stable under 60%.