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Where are the paragraphs you refer to? Are they just in English Heritage's submissions during the planning process as a statutory consultee? If so, they can sit and spin unless the planning permission you received includes such limitations. I'd stop communicating with English Heritage until you have this sorted out.

It has been a while since I posted and things are progressing, so expect a flurry of posts in the next few months as things are decided before we go to contract, however I have been working on some minor detailing. I have decided that I want to extract toilet smells directly from the pan (see JSHarris blog part 32) I have 6 toilets in the house, in 3 pairs (see the plans on blog 02-The Planning Saga) so can use 3 extract runs, one to each pair, the simple bit. I then need to work out how to connect to the MVHR system and the toilet cistern. The MVHR ducting will be Hybalans+, thought the design/supply/install is still be to sorted out. So I have 3 issues to work out: 1 connecting to the cistern, 2 connecting to the MVHR, 3 connecting the two together. Connecting to the cistern. After much research looking at low flush toilets and attempting to get information from suppliers (as soon as you go for non-standard ideas they all clam up) I discovered the Geberit Duofresh with build in odour extraction and started enquiring with Geberit about getting the connecting pipe from cistern to pan and using it on a standard cistern. Trying to get this bit. The issue being that the bit I want is not available as a part and is solvent welded to the cistern, however after much toing and froing of e-mails and finally a call from the technical department it was agreed that by using the Duofresh cistern (available without the filter and fan unit) I could cut through the pipe and connect it to the MVHR system. The plan is to cut the vent pipe (it is 50mm) and put on a solvent weld joint with reducer and 40mm push fit adaptor (reason for 40mm push fit later). I was also planning to seal up the feed into the cistern (vertical pipe) however this is square post the transition bend so not going to be so easy (can’t use a 50mm plug) so I may end up just filling it with expanding foam to seal it. I have decided on the Geberit cistern as the ability to service them once installed appeals and the Duofresh cistern is only about £10 dearer than the standard cistern. Connecting to the MVHR. I then needed to work out how to connect the pipe to the MVHR system, the pipe coming from the manifold will be either 92/75 or 75/62 (external/internal dimension) and connect it to two 40mm pipes. I then realised that soil pipes are 110mm standard and the vent terminals are between 100 &125mm so there was some potential there. My solution (still to be tested) is to use a vent terminal adaptor onto a solvent weld pipe, my reasoning as follows: The 110mm soil pipe has an outside diameter of approximately 110mm and the solvent weld socket has an outside diameter of 121mm. The straight vent connector has a diameter of 125mm, the 900 one 118mm, however the vent inserts show a diameter of 114mm, so I suspect the 125mm is an external and the 118mm internal. The straight vent connector has a diameter of 125mm, the 900 one 118mm, however the vent inserts show a diameter of 114mm, so I suspect the 125mm is an external and the 118mm internal. I should be able to connect the vent terminal adaptor over the plain pipe with a push fit sealing ring on it and solvent weld a plug into the other end. Then insert two 40mm push fit boss adaptors into the bosses on the pipe. I should now have an adaptor that connects the 92/75 MVHR pipe to (1-4) 40mm push fit waste pipes. Connect the MVHR adaptor to the cistern connector. With 40mm push fit sockets on both ends it is a simple job to connect up the two ends either with flexible 40mm pipe or rigid with a length of flexible 40mm pipe at each end: So now I have a plan to connect the toilets to the MVHR. The Geberit parts number is: 111.353.00.5 (Geberit Duofix frame for wall-hung WC, 112 cm, with Sigma concealed cistern 12 cm, for odour extraction with recirculating air) The normal cistern is: 111.383.005 (Geberit Duofix frame for wall-hung WC, 112 cm, with Sigma concealed cistern 12 cm, wall anchoring and connection bend)

I think we concluded the best way to recover heat from a bath, was leave the water in the bath until cold, then the heat will be ion the fabric of the building and only cold water going down the drain.

Inserted where though? If just a comment by them to the planners during the consultation period, then as others have said, it's irrelevant unless the planners have made it a condition of planning.

Hey Nod, Are you in one of these areas... Article 4 Directions Householders can normally make minor alterations to their houses without requiring planning permission such as changing doors or windows. This is called 'permitted development'. However in some conservation areas we have removed these 'permitted development rights' by making an Article 4 Direction. The conservation areas affected are: Avenham Fishergate Hill Fulwood St. Ignatius

Gave up to sit in the garden to read this and drink the other. Absolute scorcher and then two De Havilland Vampires fly up the valley and very low over the house! Maybe an airshow on nearby? Biggin Hill?

So, I've been looking a bit more into the Activate Sludge process to try and determine which is the optimum shape - conical or cylindrical. The short answer is I can't find definitive information and that various shapes of 'tank' seem to work. The main difference between the two units seem to be the size of bubbles produced by the air diffuser. The Biopure appears to produce larger bubbles, as it has to both aerate and break up solids that are deposited directly into the digestion chamber. The Vortex has an initial breaking up stage before using a diffuser that produces finer bubbles in the main chamber. Whether there is a greater risk of a finer diffuser getting blocked / scaling up is something to think about. The Vortex also appears to only aerate part of the time as compared to the Biopure which runs 24/7. The Vortex also claims to be adjustable to deal with household under occupancy. I'm not sure how bug an issue this is. presumably a variable resistor fitted to the air blower would be an option to reduce the amount of air / oxygenation going into any treatment plant. I'm still to confirm service requirements for the Vortex, but a chat with Biopure, it all seems straightforward. Service the air blower (filter and diaphrams), sample treated liquor, desludge every 3 or so years, lift air line to check and clean diffuser. I'm guessing the Vortex will be similar. One advantage the Biopure does have is that the air blower can be housed in the top part of the unit whereas the Vortex seems to be a little box that sits on top of the unit.

£110 for a day doesn't seem at all bad when you consider the by product - wood chippings, have a value as garden mulch. You maybe should have tried a different tack and gone with the classic - "I've nearly beaten a man to death, so I'm sure I could shoot one..."

Then shop about for the HP you want, that could save you a fair bit.