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To compare the Co2 emissions of one sort fuel with an other one can not take into account the weight/CO2 rati
Here are the real numbers,taken from the book"Green design-sustainable building for Ireland",published by the Office of public Works and the European Commission,
ISBN 0-7076-2392-8 :
Typical emission factors for fuels(based on gross calorific value)
Gas 0.18kg/kwh CO2 0g/kwh SO2
LPG 0.22g/kwh CO2 0g/kwh SO2
Gas oil 0.25g/kwh CO2 0.5g/kwh SO2
Fuel oil 0.26g/kwh CO2 5g/kwh SO2
Coal 0.3-o.35g/kwh CO2 2-3g/kwh SO2
Peat o.36g/kwh CO2 1g/kwh SO2
Electricity 0.8g/kwh CO2 8g/kwh SO2
They give no numbers for timber.Logical thinkers know that timber as well as peat are one and the same substance fuel wise(cellulose).So timber is the second worst polluter(CO2) in the fuel list,like peat.The argument that it is renewable does not count since the Forests are declining worldwide.And CO2 is a global problem.As I said before
Mac gave the impression that timber can be dried in a shed.That is simply not true.As he mentioned as well it needs an aerated dry environment to dry ,as his friends
in Switzerland have.Outside,barely covered(against the rain) and open on the sides.Mac said the things in the shed(bicycle,gardening tools) rust because people don't wipe them dry when they put them in.How does one wipe a log of timber dry,why does mum not try to dry the washing in the shed?It won't work.
When the EU made regulations about timber dryness -for the building industry-the Irish and British gouvernments managed to get the EU to make a compromise:max.18% moisture is allowed in timber.ALL other nations had already since ages- long before drying killns where used- their own national regulations.Far below 18% moisture.
The Irish and British timber industry simply CAN'T produce dry timber in an economical way .They HAVE to use energy consuming drying killns to achieve the minimum standard -18% moisture.
Everyone is able to look at the next timber yard.Irish building timber is nearly always killn dried.Foreign timber is usually air dried,hence of better quality-and cheaper when bought in quantity.If the EU had insisted on the higher standards which where in place before ,the Irish and British timber industry would have stopped to exist.The costs of kiln drying would have driven them out of the free market.Only because they agreed on 18% max.moisture ( a quality that carpenters on the continent would hand to the gardener but not use in construction) we have a Forrest industry here.17% max.moisture would have broken the neck of most forrestrys here.So they agreed on the lowest standard possible-18%.20% moisture content and soft wood(spruce and pine) is attacked by fungus.The building erected with such timber would not be safe.See building regulations.It could be achieved to dry timber here in Ireland to less than 18% moisture content without the use of a kiln.It had been done before in the old ages.But that would take ages.And every year of waiting costs money.So trying to get dry timber for fuel is a problem here.Either one uses off cuts-waste from the kiln-or one has a lot of space to dry it,plus insurance for it.Timber in large quantities is "worth" stealing it.Dry timber can burn down accidentally.There are fire legislations how high a timber stack can be versus the distance to the next stack and the distance to the next building.And these legislations are valid from a certain amount onwards.A supply for several years for a single home will certainly fall under these fire regulations.From Bavaria I know that only enough timber fuel for a few month is allowed next to the house.
To compare the Co2 emissions of one sort fuel with an other one can not take into account the weight/CO2 rati
Here are the real numbers,taken from the book"Green design-sustainable building for Ireland",published by the Office of public Works and the European Commission,
ISBN 0-7076-2392-8 :
Typical emission factors for fuels(based on gross calorific value)
Gas 0.18kg/kwh CO2 0g/kwh SO2
LPG 0.22g/kwh CO2 0g/kwh SO2
Gas oil 0.25g/kwh CO2 0.5g/kwh SO2
Fuel oil 0.26g/kwh CO2 5g/kwh SO2
Coal 0.3-o.35g/kwh CO2 2-3g/kwh SO2
Peat o.36g/kwh CO2 1g/kwh SO2
Electricity 0.8g/kwh CO2 8g/kwh SO2
They give no numbers for timber.Logical thinkers know that timber as well as peat are one and the same substance fuel wise(cellulose).So timber is the second worst polluter(CO2) in the fuel list,like peat.The argument that it is renewable does not count since the Forests are declining worldwide.And CO2 is a global problem.As I said before
Mac gave the impression that timber can be dried in a shed.That is simply not true.As he mentioned as well it needs an aerated dry environment to dry ,as his friends
in Switzerland have.Outside,barely covered(against the rain) and open on the sides.Mac said the things in the shed(bicycle,gardening tools) rust because people don't wipe them dry when they put them in.How does one wipe a log of timber dry,why does mum not try to dry the washing in the shed?It won't work.
When the EU made regulations about timber dryness -for the building industry-the Irish and British gouvernments managed to get the EU to make a compromise:max.18% moisture is allowed in timber.ALL other nations had already since ages- long before drying killns where used- their own national regulations.Far below 18% moisture.
The Irish and British timber industry simply CAN'T produce dry timber in an economical way .They HAVE to use energy consuming drying killns to achieve the minimum standard -18% moisture.
Everyone is able to look at the next timber yard.Irish building timber is nearly always killn dried.Foreign timber is usually air dried,hence of better quality-and cheaper when bought in quantity.If the EU had insisted on the higher standards which where in place before ,the Irish and British timber industry would have stopped to exist.The costs of kiln drying would have driven them out of the free market.Only because they agreed on 18% max.moisture ( a quality that carpenters on the continent would hand to the gardener but not use in construction) we have a Forrest industry here.17% max.moisture would have broken the neck of most forrestrys here.So they agreed on the lowest standard possible-18%.20% moisture content and soft wood(spruce and pine) is attacked by fungus.The building erected with such timber would not be safe.See building regulations.It could be achieved to dry timber here in Ireland to less than 18% moisture content without the use of a kiln.It had been done before in the old ages.But that would take ages.And every year of waiting costs money.So trying to get dry timber for fuel is a problem here.Either one uses off cuts-waste from the kiln-or one has a lot of space to dry it,plus insurance for it.Timber in large quantities is "worth" stealing it.Dry timber can burn down accidentally.There are fire legislations how high a timber stack can be versus the distance to the next stack and the distance to the next building.And these legislations are valid from a certain amount onwards.A supply for several years for a single home will certainly fall under these fire regulations.From Bavaria I know that only enough timber fuel for a few month is allowed next to the house.