Hello everyone,
I can't find answers to my question on the forum search (probably because my question is bordering stupidity), so here goes:
1 = Aim to install solar thermal collectors at the end of our garden, house faces west & end of garden gets sun from 9am. Will build small gazebo to mount evacuated tubes on, facing south.
2 = From collector to house = 15 metres. Will need really good underground pipe insulation.
3 = Once reaches house, will be 10 metres to the boiler.
>>>>>>>>>>>>>
I'm worried about how effective underground pipe insulation will be. I have 2 options:
option 1
Underground pipe insulation:
110 PVC pipe, water pipes mounted inside, with armaflex insulation + more insulation wrapped round. PVC pipe segments sealed along the 15 metres
option 2
dual solar collectors on the roof:
Solar collector facing east + solar collector facing west. Although will cost more + be a bit of a struggle with planning permission.
>>>>>>>>>>>>>>
Key question is, option 1 or 2? (If 1 what % of heat is likely to be lost?)
thanks / simon
I can't find answers to my question on the forum search (probably because my question is bordering stupidity), so here goes:
1 = Aim to install solar thermal collectors at the end of our garden, house faces west & end of garden gets sun from 9am. Will build small gazebo to mount evacuated tubes on, facing south.
2 = From collector to house = 15 metres. Will need really good underground pipe insulation.
3 = Once reaches house, will be 10 metres to the boiler.
>>>>>>>>>>>>>
I'm worried about how effective underground pipe insulation will be. I have 2 options:
option 1
Underground pipe insulation:
110 PVC pipe, water pipes mounted inside, with armaflex insulation + more insulation wrapped round. PVC pipe segments sealed along the 15 metres
option 2
dual solar collectors on the roof:
Solar collector facing east + solar collector facing west. Although will cost more + be a bit of a struggle with planning permission.
>>>>>>>>>>>>>>
Key question is, option 1 or 2? (If 1 what % of heat is likely to be lost?)
thanks / simon
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