Sun, 19 Apr 2026 04:56:25 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123049#Comment_123049 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123049#Comment_123049 Wed, 16 Nov 2011 22:08:17 +0000 sinnerboy http://www.easca.ie/ - if any of you are in the fair city next week

"With the popularity of the Passivhaus standard and the arrival in December of the more onerous Part L 2011 regulations, Ultra low energy building has finally gone mainstream. Building solutions which focus on a 'fabric first approach' result in minimised energy demand, but; we ask this month, does it result in a simpler and cheaper heating and hot water system. The answer seems to be No. This open group discussion, will explore the varios options for heating a low energy, A1 or Passivhaus build or renovation will be hosted by expert mechanical engineers, plumbers and passivhaus architects, who will each promote the merits of a particular heating solution. We will use the case study of a detached new build built to 'Near Passive' (SSHD18kWh/m2.a, HL 12kW/m2) with a boiler sized as 8kW for space heat and hot water for the coldest day of January 2011 and discuss the following solutions.
60 to 80 tube Vacuum tube solar, 1000L Thermal store, 15kW condensing gas/LPG boiler, underfloor downstairs towel rails upstairs distribution. optional solid fuel stove with back boiler, power showers. MHRV
10kW Air to water Inverter airpump, 350l cylinder, 400l buffer tank, underfloor distribution. MHRV
Compact air scource Heat pump with in-line duct heater batteries and supplimentary bag fed pellet stove.
Interseasonal Storage, utilising stored summer solar storage in water, masonery or PCM stores.
Passivhaus with Solar panels, electric immersion and plug in electric heater."

If not in Dublin then

"The discussion is open to the public and we be similtainiously web cast in an interactive on line virtual seminar.
Registration for webcast at http://www.ustream.tv/channel/green-building-user-group For further information contact coordinator@easca.ie"]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123059#Comment_123059 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123059#Comment_123059 Thu, 17 Nov 2011 07:03:27 +0000 DamonHD
Rgds

Damon]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123079#Comment_123079 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123079#Comment_123079 Thu, 17 Nov 2011 10:15:40 +0000 Ed Davies UK part L regs. Scottish and Welsh regs are different from those in England. (Not sure about NI). AIUI, Ireland follows English regulations so I'd speculate that there's a delay to rubber stamp changes, but not sure.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123097#Comment_123097 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123097#Comment_123097 Thu, 17 Nov 2011 18:53:57 +0000 DamonHD
Rgds

Damon]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123098#Comment_123098 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123098#Comment_123098 Thu, 17 Nov 2011 19:08:29 +0000 Ed Davies https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123100#Comment_123100 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123100#Comment_123100 Thu, 17 Nov 2011 19:34:07 +0000 ted https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123103#Comment_123103 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123103#Comment_123103 Thu, 17 Nov 2011 19:58:49 +0000 fostertom https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123136#Comment_123136 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123136#Comment_123136 Fri, 18 Nov 2011 11:31:38 +0000 DarylP
Makes for some interesting discussions with 'behind the curve' Architects....

Cheers...]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123146#Comment_123146 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8127&Focus=123146#Comment_123146 Fri, 18 Nov 2011 13:01:25 +0000 borpin