https://uk.yahoo.com/news/military-shuns-heat-pumps-favour-153414975.html   "An MoD spokesperson said that the project was launched to find a cheaper alternative to heat pumps, which require comprehensive and expensive work to a property before installation. One possible solution is by using Cylo boilers, which the Telegraph understands are currently being fitted in four homes at the Duke of Gloucester Barracks in South Cerney, Glos, as part of a pilot project due to start early i