ufh

I am currently connecting my UFH system to my combi boiler (Worcester Bosch 42CDI). I will T off from the existing radiator flow and put in a 2 port motorised zone valve on the rad flow, will I need a 2 port zone valve on the UFH circuit? I cant ever see a situation when my UFH will not be...

Hi I have just had a sunroom built 16m2 and want underfloor heating. I cannot decide between wet or the mats. If i have wet the floor is timber suspended 600mm with polystyrene insulation between timber. Does anybody have any recommendation about how to do this? Do I replace polystyrene with a...

Hi All I am trying to get to grips with the details of installation of the floors on the rebuild of the first floor of our house. All of the old floor covering has been removed and we are fixing and replacing joists as required. The joists are spaced at 400mm centres. The intention is to fit...

Hi All Some advice would be appreciated. We are doing a full refurbish on our house at the moment, fitting underfloor heating throughout amongst a lot of other work. All the stud walls and rotten chipboard floors have been removed on the first floor in preparation for the new layout. The new...

Hi All We are renovating a 1980s built house and intend to fit UFH throughout. In the existing part of the house the floor is made up of 4" of hardcore, DPM layer, 4" concrete with 2" screed over the top. Given that there is no insulation in the existing floor will overlay UFH in EPS panels...

Hi I have a Solfex UFH system installed by my builder but without any great knowledge (used Solfex design service..) It has three zones, one of which has two loops controlled by the same thermostat and actuators on the return manifold for control. Although the Solfex design defines the flow rate...

Hi, I'm renovating and old (~1870) house. Having pulled up the floor coverings and original (knackered) tiles downstairs, I've discovered that 2 rooms and a sort or corridor area have a solid concrete-like base, although all at different heights, while another room has a suspended timber floor...

Hi, I was wondering if there is anyone that can provide advice on my UFH design (attached). Each Run is circa 75m, I have gone for 150mm spacing at the front as there are large bi-fold doors. The top section has sufficient room height to install roughly 75mm insulation then 15mm pipes and a...

Hi all, I've been using this forum for many years now and found it particularly helpful. I'm now facing an interesting challenge and I'm getting a bit of conflicting advice so thought to tap into the diynot community more directly this time. I currently have a regular boiler with a vented hot...

We are embarking on a refit of our ground floor kitchen/lounge and would like to install electric underfloor heating. Any assistance on the considerations would be great. -Large 4ft ventilated subfloor cavity ;wooden joists; chipboard subfloor. Thinking we might use 100mm polystyrene insulation...

Am considering fitting the Vaillant weather compensator, the logic behind it makes sense to me but not sure if we have the right setup for it to work properly. Existing system is: 637 Plus system boiler UniStor cylinder Zone 1 - Radiators (upstairs & downstairs) with Honeywell room stat Zone 2...

I have UFH downstairs and Rads upstairs. The CH out from the boiler goes through a Y Splitter and I then have a 2-port motorised valve on each CH circuit, one leads to the upstairs CH rads and is all controlled via one thermostat, the other goes downstairs where it meets the UFH manifold...

Hi folks, I have looked for an answer to this but not come up with anything... maybe some experienced people will be able to advise. I am installing an 8-zone underfloor heating system, with a thermal actuator on each zone. I have a wiring centre that will open the relevant actuator when there...

Hi Have installed an Emetti UFH system under Agilia A screed. Two zones, 3 loops (one large kitchen for 2 loops and one utility for one loop) in a refurbishment/extension. Loops 1&2 kitchen, Loop 3 utility. It has been running for ten days now, I started at 20 C and raised to 55 C by 5 per...

Hi. (First post, so go easy on me ;)). We live in a 1930's terraced house and are planning to do some major renovations to our downstairs in the spring. I've had at the back of my mind installing wet UFH for some time (leaving the radiators upstairs), but have a few complications that I'd...