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I take it you're upgrading the insulation in your roof, going triple glazed on windows.

don't forget you lose heat through the floor too.

any thoughts on ground source heating ?

keep to the Fen Causeway

by Helen (lareinagal at yahoo dot co dot uk) on Wed Apr 14th, 2010 at 05:14:11 PM EST
The attic insulation has been done to 300mm of rock wool.  The new windows will be just double glazed, but to a high U value.  I don't think ambient temperatures in Ireland justify triple glazed.  Have already installed insulated wooded laminate flooring (over concrete) in most rooms.  Have considered ground source heat pump but the cost is considerable and not really an option until the time comes to replace the Kerosene range.

notes from no w here
by Frank Schnittger (mail Frankschnittger at hot dotty communists) on Wed Apr 14th, 2010 at 07:08:22 PM EST
[ Parent ]
after having the pipes in the collector burst on me a couple of times, i now empty the water out of them during then refill them in april.

you might want to do that and save your glycol costs.

if your roof is too dangerous, maybe you could install  taps at ground level.

solar heated water tingles more in the shower.

;)

~"When an inner situation is not made conscious, it appears outside as fate." Karl Jung~

by melo (melometa4(at)gmail.com) on Thu Apr 15th, 2010 at 03:42:53 AM EST
[ Parent ]
during winter, duh.

i hear their happy gurgling right now.

~"When an inner situation is not made conscious, it appears outside as fate." Karl Jung~

by melo (melometa4(at)gmail.com) on Thu Apr 15th, 2010 at 03:44:04 AM EST
[ Parent ]
The sales guy recommended against the vacuum pipe solar collection system saying they have lifespan and maintenance issues. Presumably the pipes burst because water freezes and glycol shouldn't.  There is not much point in my having a solar heating system if it doesn't work in winter...

notes from no w here
by Frank Schnittger (mail Frankschnittger at hot dotty communists) on Thu Apr 15th, 2010 at 04:36:13 AM EST
[ Parent ]
i'm N. facing, with a hill to the S.W., so with the ambient temp going down to -5-10C in winters, it doesn't do diddly. i drain it and shut the taps filling it from late oct. to mid april. even now, with sporadic spring clouds passing, i'm lucky if it raises the temp from 15C to 40C after all day, which is OK for a quick shower without any cold added.

alternatively lighting a small fire tips it up to very hot.

on a full sunny day, such as we had a few days ago, it went to 60C on solar.

 

~"When an inner situation is not made conscious, it appears outside as fate." Karl Jung~

by melo (melometa4(at)gmail.com) on Thu Apr 15th, 2010 at 05:15:44 AM EST
[ Parent ]
Speaking of floor heating, back in the 50's my father helped design and build the house we lived in. I remember it had concrete slab floors with radiant heating underneath. It was absolutely the best! It really makes me wonder why, here in Finland where it's really cold, they don't have this type of heating throughout. They have used this method under the tile floor in the bathroom, but that's it. Obviously, they know about the technology, so I wonder why it's not used throughout the house? Instead, we have these totally inefficient electric wall heaters. I'm sure it has to do with cost (to the builder), but for the homeowner, in the long run, wouldn't it make sense to pay the extra cost upfront and have lower electricity costs and a warmer home?
by sgr2 on Thu Apr 15th, 2010 at 06:37:59 AM EST
[ Parent ]
Both direct underfloor heating and using concrete for storage heating are well proven technologies.  If cost hadn't been such an over-riding concern when we designed and built this house thirty years ago it would have featured both.  We even had a small windmill planned and considered ground based heat pumps.  But the technology then was basic and expensive (in Ireland) and I suspect we would have had maintenance issues.  

Now if I were doing it all from scratch again... it would be a passive house with little need for heating in the first place. The idea that you need an active heat source to heat a house should be a thing of the past at this stage.  A small heat pump and a few solar panels should be sufficient for any well insulated house.

notes from no w here

by Frank Schnittger (mail Frankschnittger at hot dotty communists) on Thu Apr 15th, 2010 at 07:37:39 AM EST
[ Parent ]
Thanks for the reply, Frank. I very much enjoyed the story and pictures of your project and your efforts to go green. It's a joy to read that you were thinking 'green' way back thirty years ago!

There are so many new/sometimes reinvented old ways to go with building technology these days. Passive straw bale type construction looks like it would fit right in with the Irish countryside, although I'm not sure it would be suitable with the wet weather. I've thought a house with a living roof might be interesting. Especially if it could have a system where the household water could be recycled through a reed filtration system (maybe with a koi pond?) for use again. Solar, wind, geothermal, they're all good. Ah, it's a shame to know all these technologies exist . . . it's just a matter of money. But certainly I agree with you, in this day and age keeping a home comfortable shouldn't be an issue. But don't even get me started about insulation . . . it was apparently an unknown concept to the builder who built my place. Shameful!

Just want to let you know that I always enjoy your posts. Ireland is such a pretty place, with its (no less than) 40 shades of green. And the people are so friendly, and the pubs, and the brogue. There's nothing quite like Ireland! I had the good fortunate to have an Irish boyfriend in a former life and so I got not only a pack full of great Irish sayings, I also got a birds-eye tour of your lovely countryside from our base in Malahide.  Oh, and did I mention a lifelong love of Irish folk music, too!

by sgr2 on Fri Apr 16th, 2010 at 04:55:13 AM EST
[ Parent ]
My son considered building a passive house with a grass roof just next to mine a couple of years ago, but costs and the recession intervened!  He got as far as applying for planning permission and the planners didn't have a problem with it so maybe in the next few years...!  We do have a septic tank system for our sewage and I have seen and blogged a reed recycling system near Copenhagen.  If your ever back this way, feel free to visit!

notes from no w here
by Frank Schnittger (mail Frankschnittger at hot dotty communists) on Fri Apr 16th, 2010 at 05:36:47 AM EST
[ Parent ]
Sorry to hear about your son's building plans having to be put on hold, hopefully it will get back on track soon.

Thanks for the link to an excellent diary. It's nice to know you are involved in doing such good work, and getting the word out. I'd be in hogs heaven if my village here in Finland were to decide to go the route of Dyssekilde Ecovillage. That is just way too cool!! Totally off the grid, using recycled materials, and sharing. I think it's a concept whose time has come. I just hope it can continue to get enough good press to become fashionable, creating a situation where people are willing to give it a go.  I'd sure be thrilled to be part of the process. Thinking globally, but acting locally.

And absolutely, positively, and of course, I would welcome any opportunity whatsoever to come back your way . . . and would definitely take you up on your kind offer to visit!

by sgr2 on Fri Apr 16th, 2010 at 08:56:16 AM EST
[ Parent ]

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