Nestor

I recommend the BPC quote, you really do not need to pay any more. MVHR is very straightforward to fit and set up. Flexi is easy to install and the system just runs very quietly in the background. Depending on the possibility of overheating in your property it might be worth considering a water coil or cooler. Lots of info on the forum.

Hi @joth No information in the supplied UK manual. I found some supplementary info for cooling online. Its very easy to move the dip switch though I did need a magnifying glass to see it. We only tried it for 24 hours so can only say it was having a minimal effect. The floors were noticeably colder as the flow temp was set to 12*c. Will try again in next warm spell and report. The Ecodan is excellent, we have the 8.5 for a 285sqm home, well insulated. Its also very quiet when running. We moved in beginning of March and up to today the delivered energy was 4070 and consumed 677 so a COP of 6. We have a PV diverter so that will have had an impact on the figures. Try this link : http://www.mitsubishitech.co.uk/Data/Ecodan/Controls/PAC-IF041B-E_FTC3/PAC-IF041B-E_IM1.pdf Cooling ASHP.pdf

Can anyone help? Have the Mitsubishi Ecodan W85 installed and would like to try the cooling function. I have moved the DIP switch SW2-4 cooling mode to the on position and reduced the flow temperature to 12'c. Do I need to change the room thermostats to call for cooling or is another adjustment necessary on the Ecodan like the compensation curves? UPDATE: I have adjusted the room thermostats up and now it calls for heat / cooling.

+1 Wunda.

@Pete Great, just about to ask the same question. About to try cooling option using the ashp first.

@Stones @DOIGAN Can you advise? I have same unit with summer bypass which I assume avoids the heat exchanger when the temperature outside is warming than the inside room temp. Where are the sensors for the inside and outside temperature? I think I want the summer bypass to be on permanently as I would rather have colder air in the house, below 19c if possible and especially at night. Do I set the inside temp as low as possible? I find the Vent Axia manual a bit lacking for my brain. Thank you.

I would increase the PIR by up to 50mm. Do double check your levels and thresholds. My floor build up was 150mm celotex on top of the slab, 16mm ufh and 40mm screed. Check with the screeders minimum screed recommendation.

Similar spec, supply only. http://www.stovesonline.co.uk/ Had a quote to supply and fit = £2040+vat. I will fit myself after sign off. 1 X 2-150-005 ** (150MM) SW-TW FLAT ADAPTOR AKW TWIN WALL CHIMNEY STAINLESS STEEL £25.75 1 X 2-150-018 ** (150MM) 100MM LENGTH AKW TWIN WALL CHIMNEY STAINLESS STEEL £28.75 2 X 2-150-010 ** (150MM) 1000MM LENGTH AKW TWIN WALL CHIMNEY STAINLESS STEEL £150 1 X 15-150-051 ** (150MM) 50-80MM WALL BAND AKW TWIN WALL CHIMNEY STAINLESS STEEL £14 1 X 2-150-031 ** (150MM) 45 DEGREE BEND AKW TWIN WALL CHIMNEY STAINLESS STEEL £51.25 1 X 2-150-011 ** (150MM) 500MM LENGTH AKW TWIN WALL CHIMNEY STAINLESS STEEL £55.75 1 X 2-150-031 ** (150MM) 45 DEGREE BEND AKW TWIN WALL CHIMNEY STAINLESS STEEL £51.25 1 X 15-150-051 ** (150MM) 50-80MM WALL BAND AKW TWIN WALL CHIMNEY STAINLESS STEEL £14 1 X 2-150-016 ** (150MM) 250-350 ADJUSTABLE LENGTH AKW TWIN WALL CHIMNEY STAINLESS STEEL £57.5 1 X 2-150-010 ** (150MM) 1000MM LENGTH AKW TWIN WALL CHIMNEY STAINLESS STEEL £75 2 X 2-150-073 ** (150MM) WHITE VENTILATED FIRESTOP PLATE AKW TWIN WALL CHIMNEY £68 STAINLESS STEEL 1 X 15-150-075 ** (150MM) WHITE FIRESTOP COVER PLATE AKW TWIN WALL CHIMNEY STAINLESS STEEL £25 1 X 15-150-069 ** (150MM) GUY WIRE BRACKET / FLOOR SUPPORT BAND AKW TWIN WALL £10.75 CHIMNEY STAINLESS STEEL 1 X 15-150-067 ** (150MM) ROOF SUPPORT AKW TWIN WALL CHIMNEY STAINLESS STEEL £18 1 X DFE106B ** 125-230 BLACK SQUARE ROOF FLASHING £24.75 1 X FX901 ** DEKTITE FIXING KIT 1 £10.25 1 X 2-150-090 ** (150MM) RAIN CAP AKW TWIN WALL CHIMNEY STAINLESS STEEL £42.75 1 X CEM ** BLACK FIRECEMENT £7 1 X STO-NP-CL ** STOVESONLINE NOTICE PLATE AND CHECKLIST £8.5 DELIVERY FLUE £46 SUBTOTAL £784.25 TOTAL NET VAT @ GROSS 20% £653.54 £130.71 £784.25

I purchased all my Rockwool flexi from https://www.ccfltd.co.uk/Rockwool-Flexi-Insulation-Slab-1200-x-600mm/p/9000218706 I had about 200 packs as my walls have 3 layers of 140mm, 70mm and 50mm. Really great product, very dense. Easy to fit and cut with a saw. If you are working at 600 or 400 centres all works well. Stays in place even in the rafters.

I had quotes from Nuheat and settled for Wunda, kit is very good quality and they provide drawings. And a lot cheaper.

Thanks for this, about to order kit for kids bathrooms, found this: same drop as yours? https://www.victorianplumbing.co.uk/hudson-reed-round-ceiling-arm-300mm-length-chrome-arm16?campaign=googlebase&gclid=EAIaIQobChMIgq3L69jw4AIVBZPtCh3iVwMlEAQYASABEgL9uvD_BwE&gclsrc=aw.ds

I started with a double extension ladder and since starting the build now have 3 Glass fibre step ladders, one step up and a single section 4.5m roof ladder. All from here : https://www.laddersukdirect.co.uk

Update from BCO : Email below Thanks everyone, @Barney12 @JSHarris @Carrerahill "The installation details seems to suggest that the SVP can be provided from the inlet to remove the need to vent externally. The vent should be on the inlet side. An AAV internally will be acceptable internally".

@JSHarris @Carrerahill @Barney12 Reply from the BCO below. Shall I mention having an external vent near the treatment plant? "Normally the head of the run will still require venting to external air as is shown in the picture of the drain run as this is the only vent on the property an AAV is not acceptable unless there is any guidance from the treatment plant supplier confirming different. This is probably not want you wanted to hear."

@JSHarris @Carrerahill Thanks for your replies. I did look at this thread you had contributed to. Yes I do want to avoid cutting holes in the roof. Gable end vent could work though its very close to Velux windows. Or could put AAV at the top of stack in roof space above the 1st floor bathroom and venting at the end of the foul drain run near the Vortex treatment plant. Do you T off the soil pipe just before it gets to the treatment plant? I will contact the BCO.

I need to cut a hole through the Tata Urban seam roof which I have been a bit reluctant to do. Can anyone recommend collars / flashings which would work best with the roof, Thank you.

Hi there, very happy so far with the roof. I chose it because I could fit myself and it was within my budget. Lots of other options on the Forum here.

I just used Turbo gold PZ wood screws but someone mentioned the Glue! Gloves essential otherwise it remains on your hands for weeks...have fun, first floor really makes working a lot easier.

Thats how I did our first floor. Caberdek P5 22mm. I put the floor down before the roof. All ok.

For my self build I have the Dewalt DWS780 mitre saw, Makita 18V drill, impact driver, circular saw, jig saw, grinder, multitool and Senco DS5550 Cordless for fixing OSB and plasterboard. All been faultless.

Hi Russell Sorry for the delay, only just seen your post. For my Tata roof they supplied, 3 tools. Eaves closer, Stubai pliers and Flange mate. I also bought left and right off set tin snips. Best bit was Makita 136mm 30 tooth metal blade for circular saw, I cut all the panels with this.

I have 3 manifolds. one 6, 7, and 8 port. 2 manifolds cover about 84sqm each and the other about 120sqm. All from Wunda, good kit.

Thank you Nick, I hoped you would reply. I look forward seeing your results.

Advice needed please. Have a 22mm Caberdek on the first floor and plan to have a Wet room bathroom with UFH and a waterproof concrete floor. No UFH under the shower former at the moment. Is it possible to put a 20 -30mm screed on top of Wunda EPS with a Impey waterguard membrane between the two. Any info would be much appreciated.