Articles on low & zero carbon technologies, HVAC, Computers & CAD too!


As a resource on low and zero carbon technologies such as solar and wind energy, provides independent advice and tips to help with the planning and design of these technologies. also provides information on CAD with free drawing blocks to download and articles on PC hardware and software. has got it all covered: CAD - HVAC - LZC - PC +More has got it all covered: CAD - HVAC - LZC - PC +More

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Biomass Boiler Wood Storage Volume

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Take a look at our short articles on a variety of CAD/ HVAC/ LZC/ PC related subjects

LZC Articles At A Glance

Ground Source Heat Pumps take low level retained heat from the ground and boost it for heating a property and providing hot water for domestic use. Also see our article on Thermal Collector Pipework

Solar thermal systems use the sun’s energy to heat water for domestic use. A 1m2 solar thermal panel could save 500-800 kWh per year. See more details on our Solar Water guide page.

Biomass is a bioenergy fuel source which when burnt provides heat energy. See our Biomass page and our Wood Storage Volume article for further details.

Find out how Air Source Heat Pumps absorb heat from the outside air using a refrigerant circuit to turn low grade heat into heat capable of heating a property heating. Also see our article on the Efficiency, Cost & Carbon Comparison of ASHP

See our article on Solar Electric panels that convert energy from the sun into free electricity.

What Offer provides information, tips and free resources. These include:

  • CAD drawing techniques and shortcuts
  • A selection of free drawing blocks
  • Website design, PC hardware and software tips
  • Low and zero carbon technologies overviews

Also available from provides links to LZC, CAD and PC articles on the world wide web. Subjects include:

  • Website design and coding
  • Computer Aided Design
  • Renewable and low carbon technologies

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Buffer vessel & thermal storage

See our article on buffer vessels and thermal storage sizing for heating systems.

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Visit our site area dedicated to Computer Aided Design - CAD. Here you will find tips and advice for using AutoCAD®

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