Biomass and Underfloor Heating Installation gives big savings and great returns

Biomass and Underfloor Heating Installation gives big savings and great returns

Financial details

  • 7 year return - £51,100
  • Payback - 5 years
  • Cost - £30,000 to £50,000
  • Bill saving - approx. £900 per annum
  • Income - approx. £6,400 per annum

The owner of this off-grid cottage renovation was looking for a sustainable solution for heating and generating power for the property which would reduce his long term running costs. He had looked at a number of options but was unsure which would be the most suited to his needs.

The property was in the process of significant renovation and extension works and umber of options from the full range of available technologies were considered. Having taken time to review the options and after carrying out a full room by room heat loss calculation, a 32kW biomass pellet boiler combined with a fully integrated underfloor heating system was installed.

Installation details

  • Product - Biomass Boiler
  • Tariff - Domestic RHI
  • System - 32 kW

As the property had a large garage we were able to accommodate all the equipment, including the fuel store, with enough room left over to still function as a garage. To maximise the remaining space we integrated an ‘on demand’ (combi-style) hot water coil into the buffer tank to avoid the need for a separate hot water cylinder and save space.

We also advised the owner on the type of floor construction and coverings which would work best to optimise his underfloor heating system, and worked with his building contractors to ensure integration with the other building works.

We were able to connect a new outbuilding to be used as a gym and hair salon to the biomass heating system via underground insulated heat main pipework and create a separate heating and hot water circuit for the building.

We advised on the RHI application and managed the Green Deal Assessment to ensure that the heat demand from both house and outbuildings would be taken into account and included within his RHI payments increasing his annual payments by over £1,000.