ufh

Hi, I'd like to replace the manual mixer in the photo with an ESBE electronic mixing valve. Should the ESBE be a straight swap-in into the Roth manifold? Not sure about thread sizes, etc. as to what is already in place. thanks

Hello, Just looking for some advice in advance of undertaking any work and/or getting quotaions. We have a very tired bathroom floor - a 'traditional' suspended wood floor and floorboards with sealed cork tiles over hardboard. This has lasted some 28 years but is going to be replaced. We are...

UFH Manifold

Hi all newbie question: I am renovating a 70s property that turns out to have a raft foundation, its at least 300 thick, and reinforced. We wanted to dig up floor, insulate and install UFH in a new screed, but its not possible now. I still want an ASHP in the property. Installer has suggested...

What order is preferred for walls and screed (with UFH)? I'm using a wet UFH system with 75mm screed over membrane and PIR insulation (PIR is already laid). I have a stud wall (plasterboard over OSB over timber frame) that needs to go in. I can see this going 2 ways: Walls first - makes the...

I'm preparing an area for wet UFH system. The insulation is down, and I'm considering laying a 'decoupling membrane' by Laminon (which helpfully has a grid printed on it to align the pipework to) prior to pipe fitting and screeding. It's sold in 1.2m wide rolls, so will have joints - I...

Good afernoon, I recenlty extended the house and added a small area of UFH to the main heating (radiators) system. Since the installation, the boiler randomly overheat and shut down. This only happens when the UFH starts, mainly in the mornings and especially if it starts at the same time as...

Hey there We're mid way through finishing up the mess that our builders left us with for our extension. I'm currently considering installing a Wunda Rapid response 20mm wet ufh system instead of rads. One potential challenge is that ideally I need to get the kitchen fitted ASAP, as it's sat...

Hey guys. I am in a bit of a pickle, mostly because what I want is not considered "conventional" in the country I live in, so I have a hard time getting the advice I need. I have a " VAILLANT ecoTEC plus VUW 26CS/1-5, 21 kW" boiler + "sensoCOMFORT VRC 720F" combo fitted to work with my UFH of a...

Winter is approaching and our barn conversion is without a boiler installed, and no mains electricity on the horizon, therefore, no way of heating the place. The ground floor screed has been poured, with the UFH pipes (pert-al-pex) filled and under pressure. My concern is the internal room...

Hi I have a Heatmiser UFH on two floors. One of the floors - UFH8 - RCD is tripping. First I just replaced the 5A fuse in Heatmiser UHF8- did not work - as it tripped immediately. I removed the power from Grundfos UMP3 - and placed the 5A fuse and again it tripped. I removed all the neutral...

Can anyone help? We installed a brand new Veissman Vitodens 111 and underfloor heating system (Ambiente Manifold, Grundfos ump3 auto pump, and Heatmiser Controls) 18 months ago. We've had no issues at the tail end of winter 2022 and all of winter 2023; but when things switched on this week its...

TLDR OK, this is not so dozy a question - and the background is below for people who want to know why I am asking this, but bottom line: What is the technical reason for anti-cycling lockouts? Does constant firing use too much gas, wear something out - what? Put it another way: If there was...

I'm planning to fit a wet system underfloor heating on my ground floor. So need some advice please: The floor is timber suspended as shown below. The height of the gap below the joists is about 500mm. The joists themselves are 4'x2' (100mmx50mm). I plan to: - use battens on either side of the...

Hi everyone, hope you are well. I am looking at installing the UH4 for our 2 zone wet UFH system. According to the diagrams, there is only one input labeled "MANIFOLD PUMP OR VALVE" with Live, N and earth connections. I am still in two minds whether we need a 2 port zone valve or not as the...

Hi everyone, we're thinking of getting some works done in our loft and have a chance to get underfloor heating installed. I have been reading around on this forum and the web and would like some advice before deciding on next steps. We want to get 3 x underfloor heating mats (UFH) across 3...

We are in the middle of a small kitchen extension and have installed wet UFH over insulation and screed which was laid on 13th December. We have engineered wood flooring to be installed on top (glue down). Our builder is now saying because the flooring is glue down it will need more drying time...

Good Evening Everyone, This is officially my first post here, and even tho i made a bit of research on the webiste before to post this, i was not able to find the answer to my question (if someone already replied to something similar, i do apologise in advance!) I'm about to purchase a...

Our house has a heating system identical to the one pictured. System boiler with unvented HW cylinder, upstairs radiators (12 of them) and about 100 square meters of UFH. All separated by individual 2 port valves. We've recently been renovating the far end of the house (and far end of the...

I’m in the process of acquiring a new boiler due to the conversion of my loft and the installation of a mechanical ventilation and heat recovery system. I’ve recently discovered that Google Nest is unable to handle multi-zone systems and reverts to a simple on/off thermostat. My preference would...