Hybrid heat pumps, infrared radiators and Sunamp heat stacks (CP780)

LEAD AGENCY: ONGO Homes
OTHER PARTNERS: CES
PROJECT SUMMARY: This project trials three different heating technologies, all recent additions to the market at various stages of development, in North Lincolnshire Homes.

The Daikin hybrid air source heat pump, combined with a condensing gas combi-boiler is the first of its kind on the UK market, and makes best use of both heat pump and condensing gas boiler technology. It can be fitted either in properties with mains gas or LPG. 10 properties will have the Daikin hybrid ASHP installed.

Logicor infrared electric heaters emit radiant heat, which the manufacturer claims uses less energy than other on-peak systems as it heats the fabric, not the air, giving a more even heat in the room. These will be aimed at 14 smaller flats in off-gas areas, where the installation of ASHPs has not been possible.

Six Sunamp stacks will be aimed at a range of solid fuel or electrically heated off-gas properties. They will receive a new high-temperature air source heat pump, to run on an economy 7 / 10 electricity tariff to charge the heat stored at low cost. The Sunamp stores heat (using phase change materials), discharging it when required via radiators. This shifts the heat load to off-peak times, reducing running costs for householders and reducing stress on the electrical network.

EVALUATION METHODOLOGY: Interviews will be conducted with a sample of households to capture energy consumption behaviours and previous energy expenditure. This is supplemented by carrying out thermal and electrical/current data-logging using recognised calibrated standalone devices, energy meter readings will also be provided by householders. A heat meter will be installed to measure the output of the Daikin hybrid heat pump; heat meters will also be installed to determine the heat out to the central heating system and hot water system. All heat meters will be connected to a pulse logger to determine the time and temperature of the heat output. A watt hour meter will be installed to determine how much electricity is required by the ASHP to produce heat. The Sunamp is powered by an ASHP and thus has a similar monitoring regime to the Daikin ASHP. In addition heat meters will be installed to determine the output of the Sunamp to the central heating system and the domestic hot water supply. Monitoring will be 12 months, including a full winter heating period.
PROJECT OUTCOMES:
  • NEA will learn more about the performance of Daikin-Hybrid heat pumps compared to conventional boilers and to what degree they can reduce fuel costs for fuel poor households.
  • Utilising Sunamp technology combined with an ASHP is very innovative and NEA will measure the savings these have for fuel poor households.
  • This project will test the manufacturers’ claims, on the comfort and energy /costsaving benefits to residents of these technologies.
REGION IN WHICH PROJECT WILL BE DELIVERED:  Yorkshire and the Humber
LOCAL AUTHORITY AREA/KEY LOCATIONS IN WHICH PROJECT WILL BE DELIVERED:  North Lincolnshire Council
DETAILS OF TECHNOLOGIES TRIALLED:
  • Daikin Altherma hybrid air source heat pump, UK.HYBRID.05B33 (5 kW model) or UK.HYBRID.08B33 (8 kW model)
  • Logicor Infrared clear heater system: GH-518R (1kW), GH518B (500W)
  • Sunamp stack heat store
ELIGIBLE HOUSEHOLDS ASSISTED
NEA GRANT WITH MATCH FUNDING MATCH TOTAL
30 30
Extended TIF programme, results due summer 2018
Monitoring and evaluation of this programme will continue during the winter of 2017/2018, doing so will enhance the quality of data and enable a comprehensive evaluation to take place.
Published on 12-10-2016
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