HERE isn’t a building in the country that can’t be heated effectively with heat pumps,’ says Will McCarthy, senior consultant at ISO Energy in Horley, Surrey, ‘and it’s a myth that it can’t be done. It can be made to work, as long as it’s designed and installed correctly.’ The pressure is on to reduce carbon emissions and heat pumps have emerged as an energy-source antidote to the old fossil-fuel guzzling gas and oil boilers, endorsed by the Government offering grants of £5,000 or more to potential takers, as long as a new system meets certain standards. Yet, the response has been lacklustre, a curiously British phenomenon that means a
