Oz07

I think glue down is beneficial as it's paid upto arcs and skirts rather than these laid ontop. Good luck making a nice diy cut around these I'd leave to the pros I have the floating stuff in current place but only because it's diy whereas gluedown you have to get someone in. What's the going rate for the Labour and glue got to be 20-30?

Last I heard your tile floor was floating sorry couldn't resist!

The pump is with the combi. As had been said I can force the air through by closing off all but one circuit. Pressure would be mains pressure so same as a garden hose would be. Does this mean I'd be able to push any lock through? Unfortunately can't mount the manifold higher than pipework I'd be going up through airtight layer onto unheated loft. Pita.

We've set up all the pipework for the manifold on the heating. Spoke to speed fit they say fitting manifold upside down is fine you just swap the air valve and bleed off valve to upper and lower bars, then turn them the right way round. My pipework is going all up into ceiling void then back down to rad's. Property is a bungalow with direct runs to each rad. What is the likelihood of air becoming trapped in the system? I'm fine bleeding air off from radiators and from the manifold but am I risking any air getting trapped up top or does the pressure in the system push it round? Do i need to take any precautions? Air doesn't get trapped in a garden hose when you turn it on and it goes up and down so I think i'm over worrying but I don't understand the physics or whatever is involved.

Isn't the important thing getting a certified floor system with bba cert? Doubt homemade eps would qualify

I think architects always draw like this. Mist be something about negating need for an aav.

Fitted a vertical waste with a shower tray yesterday. Was surprisingly hard to source the right bits. I though I was being clever bringing 110 up to exact centre of shower tray drain. Ended up cutting pipe approx 12mm lower than slab, fitting JT vertical waste with 90mm od body. Using a finned rubber off pan connector over waste body and lowered onto pipe greased up. I think those stack depths are for stacks. If you had a single connection on pipe it could be shallower.

you'll struggle to slice offcuts down the middle to split the thickness if I understand you. what size offcuts are you getting compared to rafter spacings?

They're probably not bad value when you take insulation into account. Blocks would be a tenner a m2, beams normally 15 20 ish? From rough memory

Top tip

The tongs just speed it up so much. If a new pack of bricks is 13 wide bang you take middle one out then pick 12 up. Stacking in 2s is so much slower.

Machine matt I got mine. No need for handle as wear gloves. Mine set to 6

@Russell griffiths not to mention the water was swirling round the wrong way

Good idea really every pound put into extra floor space is usually multiplied. Improvements less so. Sorry for your loss

i dont remember that, are you sure your on the right page? I do remember doing a water calc to get 100% discount on infrastructure charge. Need to show less than 110l per person or something. Well worth the half hour

I found the latest one a lot easier. You fill it out online

Once the ducting is in surely the unit could be upgraded in future if found to be underperforming. Bit like a boiler swap?!

My god you two are speaking another language

That's what I wanted. Although wouldnt work in cloakroom. It's done now. Im just going to have a switch above the worktop to boost. No biggie. Separate switches for wetrooms

Hijacking here. @joe90 you sure 50mm aav ok to stop a loo pulling traps? @Nickfromwales almost implies different saying can fit 2no. 50mm

Yeh I thought it was good to see manufacturers manual and confirm tile vents in spec. Does the condensate drain work no matter where in the unit condensation forms then? Ie both sides of heat exhanger? Excuse my Neanderthal understanding of these units. Yes I've made sure ductwork has steady fall but all way back to unit at present

Taking my MVHR ducts out through the roof and am going against couple of things. Firstly it says ducting should fall away from the unit. you can't really manage this with a roof vent no matter how you go about routing the ducting, you would always end up with a bit of a puddle as the roof is pitched and you couldn't 'fall' a duct to a pitched roof. At the minute i've set the ducting up with a slight fall back towards the unit. If any condensation does occur within these ducts and runs back to the unit will the condensate drain be effective or does it only work on the 'internal' ductwork? Second thing is BPC told me my roof tile air vents were unsuitable, despite being expensive and made by the manufacturer specifically for property ventilation, not soil. They put this down to my vents having 12500mm2 and needing 20000mm2 or something. In the end they then said that the exhaust only needs 10000mm2 so that one could be left but the other needed changing. They have sent me one with a cowl over the top. In the manufacturers instructions the unit says it only needs 10000mm2 clear vent for exhaust and intake so my tiles are ok. However no cowl on the intake. I've not had a drop of water come through even with that howling wind this week, the roof tile manufacturers have obviously built these to withstand weather. I would just have to clear any standing snow if that were to happen, although i'm sure snow would gather around a cowl too. Any thoughts? Thanks

Problem is how do we know what grade their made with. When buying timber you might buy c16 or c24 so have an idea. There was a good thread on here prob a year ago which explained benefit of different materials in doors

I've ordered those 20 quid each ones for water. Got an 8 port jg speedfit ufh/radiator manifold at a good price. All up it's 2 or 300 quid. I'd rather this than loads of tees and elbows

I priced up my loft at multiple places but I'm getting a supply and fit job cheaper than I can but the stuff. Around 5quid a metre at 300mm. What's the best price people are getting acoustic will for