Easy to Print SolaPlug Information
| Cylinder Heat Loss |
| The heat lost from a hot water cylinder throughout the year is
considerable. |
Manufacturers claim between 500 & 800 KWh/year depending on size.
In recent EST trials
http://www.energysavingtrust.org.uk/Generate-your-own-energy/Solar-water-heating/Field-trial-of-solar-water-heating-systems
losses between 230 & 2190 KWh/year were reported. |
| The wide range in results can be explained by the losses from the
connecting pipes & fittings. |
| Even in some new houses, connecting pipes are poorly lagged causing
large energy losses. |
| The MCS scheme seeks to address this by requiring that all
connecting pipe work is well insulated for at least one meter from the
cylinder, or up to where the pipes pass through a wall. |
| Furthermore, insulating jackets must be fitted to older cylinders,
bringing them up to modern standards. |
| Pipe lagging & cylinder jackets are some of the cheapest and most
cost effective and simple energy saving investments, which will usually
pay back in less than 12 months. |
EST Energy Savings Trust.
MCS Microgeneration Certification Scheme. |
| Standards |
MIS3001.
Requirements for contractors undertaking the supply, design,
installation, set to work commissioning and handover of solar heating
micro-generation systems. |
|
http://www.microgenerationcertification.org/admin/documents/MIS 3001
Issue 2.1 Solar Heating2 2012.02.03.pdf |
BS1566-1:2002. Copper cylinders for domestic purposes.
BS5615:1985 Insulating Jackets for domestic hot water
storage cylinders.
BS12897:2006 Water supply - Specification for
indirectly heated unvented (closed) storage water heaters. |
| The heat retention requirements of BS1566-1:2002 & BS5615:1985 are
almost identical. |