[Dozzer]

Hi all,

Is ground source heating actually worth the effort ?

[Avalon]

If I knew what it was :o

Is that by any chance where you dig a big hole and exchange the heat from underground with cold from the house?????

[Dozzer]

If I knew what it was :o

Is that by any chance where you dig a big hole and exchange the heat from underground with cold from the house?????


It's where you have a heat pump and pipe full of refrigerant that gets buried about 2meters down along the surface of the earth (or vertically)... it extract latent heat from the ground and in the summer works in reverse to get heat out of the air into the ground.

See more info here: http://www.actionrenewables.org/techgshp.htm
or even better here...
http://www.iceenergy.co.uk/Default.asp?NodeID=999&ParentNodeID=999&ObjectTypeID=3&ObjectID=528

Anyone have it installed ?

Any good ?

[macs gold]

Saw it being installed for a newbuild on tv last week (Grand Designs Abroad). They reckoned the payback would be achieved in about 5 years. We have installed standard heat pumps (extracting latent heat from air) and payback is maybe a bit longer than that, although its a bit hard to compare apples with pears.

If I personally was doing a newbuild then I would consider it - but then I'd also be looking at solar and other newe technologies too.

[Yogi]

Works well in Taupo and Rotorua I hear!

Cheers,

Yogi.

[Rabbit]

Works well in Taupo and Rotorua I hear!


Yes, but don't they have an on-suite Volcano and thermal vent, not allways part of the package? :laugh