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Morning All, We have a 4-year old Viessmanm Vitodens 100 system boiler, and our CH is under performing. It seems to be a problem of water circulation, return pipe is cold. System has been flushed few times Has been treated with X400 in for 4 weeks. Water Flow/Return to each rad is ok, so no...

Morning. As per title, plumber few years ago used 20mm composite pipe (https://www.screwfix.ie/p/purmo-pert-al-pert-press-fit-multi-layer-composite-pipe-20mm-x-50m-white/364hr#product_additional_details_container) to replumb part of the central heating. He fitted a Honeywell 22mm motorised valve...

Morning, I have a Kingspan Ultrasteel Albion 300l. There are several "dry stat pocket" which look like a tube with a flare at the end, no thread. What type of thermostat is normally fitted to these? Thanks

The problem is that it takes a long time for radiators for heat up, and some stay almost cold. The return pipes of all the rads are cold, flows are hot/warm. I checked for blockage on all the rads, and could not find any. Boiler is a Veissmann Vitodens 100. No fault displayed. The hot water...

Hi, I am in the process of installing a shower pump. So, I bought a 3/4" BSP Male leamington flange manufacturer by Tesla UK. https://www.teslauk.com/product/7561/cylinder-flanges My hot water cylinder also has a 3/4” BSP male thread hot water outlet (kinspan UltraSteel Direct) Sure, the 2...

Baxi Solo3 PFL 50 Problem: Boiler fires ok when cold, and cut off when temperature has reached cut off set with knob. So far so good. But it would not start again until approx 1hour , and then will fire again no problem. So it effectively run 5 minutes every hour. The boiler does not...

I have build a studio on the side of my house. For the studio to be "part" of the house (i.e extra bedroom, bathroom, play room for the kids) or independant (rented), there is a double door (hotel style) between the house hallway and the studio, with a gap of 10 inches between the doors. I have...

Hi, The expansion vessel i bought as a RC 1/2" connector to fit into a BSPT 1/2" connector. Is PTFE tape enough to seal the connection or should i use an O-ring /washer :?: Thanks a lot

I am about to replace a Ideal Classic NF50 with a Baxi System Boiler. Am i right to say that i should add some X400 into existing system and leave for about a week, then flush the system, replace the boiler, fill up with water and add some X100? Thanks

Could somebody explain to me the difference between MCB switching off curves A, B & C? Thanks

I am installing a electric heater Dimplex PLX in my bathroom (Zone3) and need some help: 1- Should it be protected by MCB or RCB? 2- I have a 3-core cable going from this heater to the consumer unit. The notice provided by Dimplex says that the earth wire of the flex coming out of the...