Post and beam

I might not have explained myself very well. A pipe network containing methane that does not have any damage, and therefore no leaks will not lose any of it. Hydrogen will leach out of the pipework at the .75/day through the metal. Of course if it builds up in a particular way and explodes it would be bad. What i meant was, this loss through the fabric, being upstream of your meter would not be your problem from that point of view as you would not be directly paying for it. If you had a Hydrogen powered car full of fuel and you dont do many miles then you are paying to let it go.

Well, old Merc's were built like tanks

Except that it can. The physics of the Molecule mean that it is almost impossible to store it without this rate of loss. Metal pipe is not the 'high tech' required to contain it. The consumer wont pay for this loss and if a cheap and easy method of plentiful production were possible then who would care anyway.

The wooden workshop/garage that i am having built might one day get used to put a car into, radical i know. Its primary use will be for tinkering about so i will probably insulate under the floor, just like the house. Does anyone know if a 50mm screed onto PIR would support a car? Or do i need more or something different. Thanks in advance

Unless the containment is very high tech i think hydrogen is lost at the rate of .7% per day. Not really an issue within the home on the downstream side of the meter but an issue none the less.

Encouraging to hear Nick, thanks.

Yes

Just had a look at the site. They are part of the same group that owns Rationel/Velfac. I need to investigate showroom options nearer to hertfordshire. Thanks by th way, this is interesting.

Yes i thought i had seen something about that. They can be expensive to buy.

Can i do the tests if i use the correct calibrated meter then ?

Thats interesting. I think i want to install my own and assumed that i would need some kind of sign off once i was done.

Thanks Guys I am happy with the actual glazing that Rationel have quoted for but the boss has picked up a few details she does not like much. The handles for example. They dont appear to have much of a choice of these. Dont like any of their doors either very much. I dont really want to have a different supplier of the external doors to the windows but might have to do so. We much prefer the Bereco doors which is why i looked again at them yesterday.

Does anyone know where Bereco sit on the quality/price spectrum? I have a feeling they sit above Rationel. My proposed Potton build has quoted for Rationel but there are a couple of details that the boss does not like. Thanks in advance guys. I will be phoning them soonest.

None of the 4 companies that i have contacted so far, as far as i know, have done diddly. They appear to be relying on the fact that the planning dept say there should be a survey. I have to say that the village is known to have produced a few bits of 'who knows what' that are of interest to archeaology so in fairness its not totally out of the blue. From my point of view if the archeaology dept of the county cannot respond to a request for specifics from the planning dept in their own county then they forfeit the right to induce a £5k plus job on me.

No becuase no response was recieved from them, therefore nothing for east herts to add to the portal.

What were the dimensions of the trenches please? I have a guy with a mini digger lined up @ £225/day to come and dig trenches for me. But this lot in cambridge that i spoke to want to do their own trenches at a vast cost.... Cambridge@allenArchaeology.co.uk

The planning dept recieved no response from Herts Archeaology after i put my application in. In my world if a department does not respond to a request for information then they have no interest and their input is struck from the requirement. Therefore removing any archeaological interest from the planning application. Gues what, thats not how it went. Jilly, as i said i have a long list and have e mailed 4 of them. They are responsive and keen to quote for a survey. But they dont know what level of survey to conduct and therefore quote for. I am beginning to think that my super quick planning grant ( 10 weeks only) will now be held up by an unresponsive department of the state machinery.

A condition on our grant of permission is an Archeaological survey. I knew this was coming and have recently e mailed 4 companies that might do the work. They have asked me what kind of survey, i believed they would tell me this so i am at a loss. Have not yet had a response from the planning dept as to what they mean in detail.

You might notice some inconsistencies between the elevations, we have been playing with combinations of Render, cedral cladding in a choice of 2 colours and brick. Will put the internal up later although they are here somewhere from when i was asking about MVHR options.

Thank you. So long as my figures still stack up its over to Potton Homes to build me a house now. Well, apart from the archeaology survey i still need

Hi Nick Agree no to Rega-vent. Their unit looks like rubbish when you see inside it. I had the joy of seeing one of their part finished installs recently as well. I could not commit to spending £7k on that. So i used that figure and priced up a kit of parts for a Brink 400 and 90mm ducting. That appears to come to about £5k. This would leave me £2k to get it commissioned and signed off and i would be no worse off financially but would have a top notch install.

The 60l/s figure comes from the quote i have from Regavent. also .3 x area which is 200 m3 in my case. As per another post i raised, with no other knowledge to base my figures on i have been using the 60 l/s. I have read such good things about the Brink/Ubink 400 that i would be amazed if it were not suitable and your comments bear that out.

It came from 1.27 of part F. However, having just re read it i think i misunderstood. Its been a long day. Purge ventilation rather than boost as i stated means opening the windows.

I believed the Ubbink 400 was a good choice for my prospective house design ( planning granted today !). 200 sq/m requiring 60 l/s, apparently. From the manual the 5 speed settings give the following # 0 = 50 m3/hr, 14 l/s # 1 = 100 m3/hr, 28 l/s # 2 =200 m3/hr, 55.5 l/s # 3 =300 m3/hr, 83 l/s #max = 400m3/hr, 111 '/s I have no way of knowing if the 5 speed settings are equally spaced from 0 to full. So, my 60 l/s would need speed set at 2. Does this look like it will be operating in a quiet enough part of its range to be a wise choice after all? Also, how does the boost requirement of 4 ACH fit into this model As always guys, wise words gratefully taken on board

That's sort of why i have been asking loads of questions on here about prices i have been given for ASHP, UFH and MVHR. Some suppliers are taking the P!ss Have not seen a bargain yet to jump on