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Earthcare Products was created in response to the growing demand for environmentally friendly refrigeration and air conditioning.

Very Environmentally Friendly (VEF) heat pump air conditioning split systems

We have developed a new range of VEF heat pump air conditioning split systems, in partnership with the UK Government’s Department of the Environment, Transport and the Regions (DETR)

These systems minimise environmental impact through the combination of natural refrigerants and optimised efficiency.

The result is an efficiency gain of 20% over the original HCFC22 systems.

Range of Ground Source Heat Pumps

We have developed a range of ground-source heat pumps (GSHP) that employ the hydrocarbon refrigerant R-290 and optimal ground heat exchanger geometry.

Ground Source Heat Pumps use the energy of the Earth to heat hot water, resulting in huge cost and environmental benefits.

A recent Ground Source Heat Pump we installed in a school is the most energy efficient and environmentally friendly heating system of its kind in the country. It saves 18 tonnes of CO2 each year, and has reduced energy bills by a staggering 79%

A range of hydrocarbon air cooled chillers up to 1265 kW capacity

The EHS range of air cooled chillers was designed within the constraints of the EU’s BAT (Best Available Technology) protocol and uses the hydrocarbon (HC) refrigerant R-290, which is an ideal replacement for R22 with the lowest Global Warming Potential. Over the last three years, the company has been developing larger sizes to extend the application of HC environmentally benign refrigerants and these are the first air-cooled chillers operating on HC refrigerants to deliver very large cooling outputs – the largest model in the range offers 1,265 kW. HC chillers have been available on the UK market since 1995, but their capacities were previously limited to around 200kW.

The photograph shows Britain’s largest ever hydrocarbon refrigerant chiller for a building services application installed at the historic Church House building in Westminster close to the Houses of Parliament in 2007. This installation is a significant milestone in the history of the air conditioning industry. We have battled against a series of obstacles created by opponents of natural refrigerants over the past decade, but the development and successful deployment of such a large hydrocarbon chiller in this prestigious location proves the doubters wrong.

The development of new refrigerants blends

There are advantages to refrigerants that possess high saturation pressure such as opportunities for compact designs and higher efficiency. However, currently available refrigerants, such as R410A suffer from negative characteristics such as high GWP and low critical temperature. There is no single-component refrigerant with low GWP and high critical temperature and most mixtures that may achieve these criteria are zeotropes with high temperature glide.

It was therefore concluded that azeotropes with thermodynamic characteristics similar to R410A would be commercially attractive. A development project was undertaken to identify such blends. Three new refrigerants have arisen from this work, all formed from natural refrigerants or synthetic chemicals with a global warming potential (GWP) of less than 150.