Recent content by Don Daps

Thanks for your advice, @Swwils . Taken me a while to reply, because its taken me a while to get the boiler installed. I think you understood my question totally, im just not sure i did. Re-reading this, i don't think i need any opentherm complexity. I've got massively oversized rads upstairs...

How flat does the subfloor need to be? i've got just less than 20mm variation across the ground floor at the moment. Does it bounce at all? The cost of the routed boards and cement boards/OSB overlay bumps the price up a fair bit.

I haven't to be honest, what are the benefits? I thought the floor will still need screed, and if the pipework doesn't go in it, the floor height will increase won't it?

Wood effect porcelain tiles is the plan, to hopefully give the heat an easy route up Yeah i understand your point, Notch. It is a retrofit and not a new build, so it was always going to be a compromise. Didn't have the appetite to dig up the slab as its our first renovation, and now its been...

Having a bit of difficulty getting clarity on this. Likely that i'm just not 'getting it'. Also fully understand i am a nightmare for people in the trade, but i want to know what's what before spending more money. I have plumbed 2 separate zones in my house; upstairs rads, downstairs UFH. Both...

Thanks for your reply Mr Chibs, yeah i'm down to the slab. Rads and UFH are set up on different circuits, with their own flow and returns and valves. In my mind i know 40mm isn't enough, but (as far as i know) the only other options are * more insulation (floating floor) and routed board...£££...

I'm renovating a small 3 bed 70's semi-detached property, with ~50m2 downstairs floor area. modern double glazing, cavity wall insulation. No central heating currently, and i've opted for a Viessmann 35kW Combi (ASHP cost prohibitive, which is crazy!) I've opted to fit oversized rads upstairs...