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Case Study:
Bennett Homes - Oak Trees, Norfolk

Oak Trees is a new housing development in the market town of Attleborough. The site consists of 22 houses, chalets and bungalows built in a traditional style. The developer, Bennett Homes, wanted to offer superior specification houses with high energy efficiency performance.

Bennett Homes - Oak Trees, Norfolk

Bennett Homes - Oak Trees, Norfolk

The Problem:

In order to obtain planning approval, Breckland Council required 10% of the energy demand of the development to come from an on-site renewable source. In keeping with its philosophy of sourcing high quality materials for its properties,

Bennett Homes chose air-to-water heat pumps, coupled with high levels of thermal insulation. This also provided a solution to the problem of the properties being some distance from the mains gas network.

EOC Services' Solution:

Air Source Heat Pumps Case Study

All properties had underfloor heating installed to their ground floors, producing an even level of comfort. Radiators, which were designed to operate at the same low flow temperature as the underfloor heating, were fitted to the upper floors to optimise the performance of the heat pumps.

For Bennet Homes, the air-to-water heat pumps met ever tightening Building Regulations. The local authority’s 10% renewable energy target was also met and the properties achieved a high level of energy efficiency performance.

Air Source Heat Pumps Case Study

For private owners the Daikin Altherma systems help reduce ongoing running costs. The system also enables affordable housing providers to meet legislative requirements; reduce energy consumption and carbon emissions, while also helping to reduce tenants fuel bills in both new and refurbished homes.

Along with improved levels of comfort and lower fuel bills, the new homeowners will benefit from the new easy-to-use intelligent control unit, with a back-lit and plain text interface. As a result, day to day control is straightforward, while accurate feedback is provided on operational conditions and energy consumption.


The installation of Daikin Altherma Low Temperature air-to-water heat pumps at Oak Trees in Attleborough has provided an efficient heating system whilst being a cost effective renewable energy solution.

The heat pumps provided a solution to the provision of energy where the mains gas was some distance away. Bennett Homes was able to meet the local authority’s 10% renewable energy target as well as providing an energy efficient heating solution for their customers.

A Daikin Altherma system was chosen for reliability and performance: furthermore the split system has no requirement for water pipes outside the building

Robert Hill, Technical Services Director at EOC Services

Our Satisfied Client’s Thoughts:

EOC Services were chosen as their reputation stood out for reliability with good after sales care by them and the manufacturer. Air-to-water heat pumps will also be installed within the affordable housing to ensure lower energy bills for householders.

Colin Sells, Construction Manager

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