Specialists in Low Energy and Heat Pump Heating Technology

Potential Savings

Using a low energy heating system can allow you to make significant savings in both running costs and CO2 emmisions.

Example for a 12KW system

We have produced a table of figures to compare a typical 12KW (41,000btu/hr) system

Figures

 Heating Method Output KW Input KW Efficiency % Annual KWh Kg of CO2 Total Fuel Cost
 Oil Boiler12.0 15.0 80% 18,810 5,003 £884
 Old LPG Boiler 12.0 17.1 70% 21,443 4,539 £1,158
 Condensing LPG 12.0 13.3 90% 16,678 3,569 £901
 Old Gas Boiler 12.0 17.1 70% 21,443 3,946 £815
 Condensing Gas 12.0 13.3 90% 16,678 3,069 £634
 Electric Heaters 12.0 12.0 100% 15,048 8,186 £2,016
 Aquarea Heat Pump 12.0 2.57 467%* 3,222 1,753 £432

* This is so high because electricity is used to power the heat pump not the primary heat source which is the outside air. 

Systems Compared

We have allowed for a typical modern, non condensing, oil boiler producing water at 80C

Old gas and LPG boilers are non condensing and produce water at 80C

Condensing gas and LPG boilers are condensing and produce water at 55C

The Electric Heating option allows for electric panel or convector heaters

The Aquarea heat pump produces water at 35C in an outdoor temperature of 7C

CO2 production Assumptions

We have followed figures published by the Carbon Trust www.carbontrust.co.uk

These allow for the following figures for Kg of CO2 per KWh

Oil - 0.266

LPG - 0.214

Natural Gas - 0.184

Electricity - 0.544

Fuel Price Assumptions

We have allowed for the following fuel prices per KWH

Oil - 4.7 pence

LPG - 5.4 pence

Natural Gas - 3.8 pence

Electricity - 13.7 pence