Nestor

Hi Joe Can you let me know your first floor build up as I am about to start plaster boarding and would like to eliminate as much noise as reasonably possible. My son's bedroom is under ours. My first floor build up is: 20mm timber floor 20mm Overfloor EPS400 (Wunda UFH) 22mm Caberdek glued and screwed 225x47 floor joists at 400 centres filled with 100mm Rockwool, I could increase Rockwool. 12mm Plasterboard

@newhome I will confirm this as we have a site meeting on the 11th. I am not sure about the interpretation, whether its hot water for washing or heating its all domestic hot water. Both my Dad and brother installed ST some years ago and claim RHI.

Hi There AFAIK the 300l twin coil unvented domestic hot water cylinder is fed by the ASHP and ST. The hot water and heating (UFH) are then drawn off from the cylinder. My solar thermal installation is eligible for the RHI.

I am having an ASHP ( Same kit as @Stones ) supplied and fitted in January and on the quote is an electricity meter which will measure performance only. I have been reassured it will not effect the RHI. Site visit by supplier in December so will confirm again. Also will have RHI on Solar Thermal.

I have 10.5m steel spliced together with cover plate as the drawing enclosed. Unrelated to Glulam but might be helpful.

I bought 3 sets of quality fibreglass platform step ladders, 1m, 1.5m and 2m platform heights. Would recommend them.

I fitted 7 x 3g Velux roof lights in the summer. I cannot fault them, excellent design from opening the box, fitting and flashing kits. Just obey the instructions. We have Velux black out blinds, lots of other options. https://www.velux.co.uk/products/blinds-and-shutters Did price up against Keylite but too close after Velux reward scheme included. Also excellent customer service.

I used Aspect Windows in Exeter. No issue with our Internorm's supplied and fitted. They also supplied and fitted Kastrup which are outward opening 3G timber / alu windows and doors.

I have just fixed 1200 metres of UFH pipe on the ground floor , screeders booked for next week. I would recommend doing the studwork first for all designated rooms with their own zone. For the kitchen I measured and marked where the island and units will sit after screed applied.

Hi Ben I stick built our self build, about 300sqm. Biggest issue is time. With a TF company I gather you can be watertight within weeks but that comes at a cost. Ours was 95% watertight within months but over a year later still not done final cladding. Much pleasure to be had in stick building and easier to adjust / alter. Other factor is cost. My kit frame would have cost in excess of 85K where as half that for stick build. Have fun.

Hi @lizzie You are not alone with issues. The Internorm slider (no leaks but some minor damage) was ok regarding the installation, the other 26 windows were not. Fitted back in April and by coincidence they are replacing the wavey 3G glass tomorrow. I will keep you updated.

@lizzie @Barney12 Thought I would join in as I have Internorm HS330 sliders. Enclosed are 2 photographs. 1547 is shot from inside looking out and shows a small circular hole. I assume this is to drain any rain which hits the glass and drains outside above the rubber strip. 1544 the drainage slot to the outside and runs down the outside of the rubber curtain. Does this help?

Don't pay Tata that bill, buy your own silicone and screws from Screwfix. Product very good, sales and service poor. I would buy again after having fitted 300sqm though they did not supply enough Velux jointing fabs, no apology just another invoice. Will update later.

Most standard doors are 2040 in height. Might be helpful, https://www.howdens.com/doors/external/flush-doors/plywood-flush-external-door-obj-sku-family-11831279?productFamilyId=DXF0470&skuId=DXF0470

@PeterW @ProDave Can I confirm that this applies to an attached garage. I have just started building our garage which is detached and using OSB on the walls and standard plaster board for the ceiling.

Hi Lizzie Does it all work ok, do you set each room independently or off a central hub, Wifi or wired?

Wunda have offered Heatmiser as an alternative. Perfect for the price.

Hi Nick Just wanted to be able to set each stat temp time / 7 day week etc, Had not planned on a central hub but could be persuaded. Wunda have not offered this as an option.

I have been specified the same thermostat X 14 from Wunda for our wet UFH, however the design is not quite doing it for me, are there any alternatives any one can recommend? Thank you. @PeterW @Nickfromwales

I have had a quote to install same Ecodan ASHP and my price excluding the cylinder is nearly 7K. Your quote seems a good price to include MCS.

@PeterW To get the self builder exemption do you have to live / own the property for a certain amount of time?

Have a look here, great blog entry with photos. https://theoldwatertank.blogspot.com/2017/02/heat-recovery-system-installed.html @jamiehamy

I have exactly same system but have only installed the radial pipe so far. I found it easier to unroll the 50 metre length into the garden and start dragging / feeding it through the frame. Don't cut the pipe until in position and ready to fit the plenums. Enclosed the BPC installation pdf, you might already have it. bpc_.installation_of_a_heat_recovery_system_with_unit_info_2016.pdf

All I can say is well done for persevering, we had an awful planner at DNPA who from day one refusal was her only recommendation. After a chance meeting with a senior planner from the same department who was in the process of puttting through their own application for a replacement dwelling did ours start to progress and be granted. It took six years but still worth it.