• Ground Source Heat Pumps

    Ground Source Heat Pumps collect heat from the ground using a network of pipes buried either horizontally in trenches or vertically in boreholes. Read More
  • Air Source Heat Pumps

    Air source heat pumps are easy to retrofit and provide effective space heating and hot water for homes and commercial properties. They are also a very efficient way of heating swimming pools.  Read More
  • Biomass

     Biomass boilers burn wood chip or wood pellets to produce water at the same temperature as oil or gas boilers, but the fuel comes from a sustainable supply rather than a fossil fuel. Read More
  • BlueGen Fuel Cell

    BlueGen uses a ceramic fuel cell to convert natural gas into electricity and heat for hot water for homes and other buildings Read More
  • Mechanical Ventilation with Heat Recovery (MVHR) systems

    MVHR – Mechanical Ventilation with Heat Recovery MVHR – Mechanical Ventilation with Heat Recovery is exactly that! It provides a balanced ventilation system and clean air, whilst retrieving most of the heat from the stale air which is pumped out of the building. Read More
  • Mechanical Ventilation & Heat Recovery (MVHR)

    MVHR systems ventilate the building without wasting heat making them particularly well suited to properties with a renewable heating system. Read More
  • Rainwater Harvesting

    Rainwater harvesting helps conserve our most precious of natural resources: water.  Why use drinking water to flush your toilet? Read More
  • Solar Thermal

    Solar thermal uses free solar energy to heat the water in your house. Read More
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What Our Clients Say

  • Solar Thermal System

    May 2016

    A client with a solar thermal system which had been installed by another company, and never functioned properly.

    "Yes, it seems to be working very well! Your two guys were very professional and polite and got the job done. With this weather we have some very hot water. When I get 5 mins I will look through the documentation to work out how I want to run it but at the moment I am very pleased to have not turned the boiler on since you left! 
    Many Thanks for your help in getting this sorted."    
    Mr B, Oundle 

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Latest Blog Entries

Alternatives to oil price uncertainty.......

As another winter season approaches, our thoughts inevitably turn to heating our homes and the ever increasing cost of this. Although gas and electricity prices have been fairly stable for a while now (falling approximately 2% each year from 2013-2015) oil prices albeit low, are typically volatile. The current scenario, which sees steadlly rising prices both at the garage forecourt and in our oil tanks, seems to be subject to almost random influences.  Factors such as a strategic energy partnership between Russia and the Saudis which may limit oil output in the future, and oscillating production costs in smaller oil fields such as the North Sea and US shale oil production only reinforce this. So whilst those of you whose homes are heated by an oil boiler, may breathe a sigh of relief at the moment - it could be short lived!

 This is where air and ground source heat pumps come into their own - not just in terms of the stability of their running costs, but also in fuel efficiency. We have been installing quite a few Nibe air source heat pumps recently, as an alternative to oil for our off-grid clients. These have a relatively low capital outlay cost (especially after the RHI government grant is factored in), high performance efficiencies, and come with a seven year warranty. They also look pretty sleek and are almost silent running - in short we like them!

Shown above is the highest capacity Nibe air source heat pump (16kW) installed recently at the rear of a large family home. For more information see here

Manifold failure - cause and effect

As with any complex system comprising of numerous parts - some individual components are relatively unknown. A good example of this is the humble manifold chamber - an essential but low profile part of a ground source system (they are usually buried in the ground!)

 A manifold chamber takes all of the pipes carrying the heat from the ground (usually 6 ports, but can be as many as 20 ) and converts them to two larger header pipes which go on to the heat pump itself.

The best MVHR system is the one that you don't know is there!

We are increasingly being asked to quote for the installation of Mechanical Ventilation and Heat Recovery systems (MVHR). Self builders will be only too aware that in their quest for better insulated and air-tight properties, building regulations are becoming ever more stringent and in order to comply with Part F for ventilation there is often a requirement to install MVHR.
The basic principle of MVHR is that it sucks warm stale air out of kitchens and bathrooms etc, extracts the heat to reuse, and feeds filtered fresh air back into the room. Although there is an extra cost involved, it does ensure an indoor air quality which "feels" like the outside, as well as moisture and odour management. It also avoids the need for trickle vents in windows - which as well as being irritatingly primitive, can look tacky!

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