Viessmann boilers designed for mains gas and can be converted to use LPG.
The average annual cost for heating and hot water using LPG in the UK is £780 when consuming around 12,500 kWh a year. This annual fuel cost is not based on actual fuel bills but is derived from using the average cost of LPG across the UK in October 2017. This cost (per kWh in pence) is then multiplied by the amount of kWh. A medium gas-energy user consumes on average in a year (12,500 kWh). This is calculated by Ofgem.
47p October 2015
42p October 2016
46p October 2017
LPG is more expensive than heating oil. The price has been pretty consistent over the last 3 years. There is no certainty that it will keep on falling.
LPG is a highly efficient fuel so you get a good return on every unit of energy. Viessmann condensing boilers, which use hot flue gases that are wasted in a standard boiler, now achieve efficiencies of 90% and more. Replacing a standard LPG boiler with a highly efficient condensing Viessmann boiler is a relatively straightforward job.
BY CHANGING TO A NEW A RATED BOILER YOU COULD BE QUITE COMFORTABLY SAVING ANYWHERE BETWEEN £300 – £600 PER YEAR.