heating system

We have a sealed system with no by-pass balancing valve, but with 3 port valve(Drayton MA1), pls see scheme. Boiler - Potterton Suprima 40HE There is three problem : 1.When Central heating(CH) mode finished and boiler stoped, 3 port valve Drayton doesn't come back automatically into deafult...

Hi, Ive posted this before but still not found the cause of the problem. I have a sealed S plan system with expansion tank that is drawing in air. I have to bleed one of the rads every week for 5-6 seconds. Details below: 1. The system is NOT loosing any pressure until of course I bleed the...

Hi All, My Drayton tempest three control panel is clicking on and off so needs replacement. Looking at various websites apparently it a fairly easy switch over for another Drayton control panel. Looking at the instructions online for one it says to set the jumpers for pumped or gravity filled...

Hi Everyone, My CH system has a an underfloor heating loop in the kitchen. What I want to do is run the UFH 24 hours with its own control system. The Glow worm 38cxi boiler only has one circulation pump so can I fit a motor valve into the radiator circuit and control it with a wireless...

Hi, I have a 2 zone central heating system. I have a danfoss TP9000 which does the hot water and the downstairs heating. Its connected to a thermostat in the Living room. UpstairsI have a danfoss TP4000 which is powered by batteries. I want to upgrade both to a nest system but Iam unsure...

Hi all, keen to to get a ballpark figure on what you would charge for this? It's a whole block of a school and they have asked if we can price for doing it next week on half-term. Never priced for a system this size before and want to make sure I don't miss anything out!! Thanks, Keiran.

i am having problems getting heat to 5 new rads on a single pipe system. the customer supplied drayton trv4's with then and already had 10mm pipe going to the 22mm single pipe. on connecting and heating up its bypassing the new rads. is there any good way around this? i have read that special...

Have come to flush a large house, vented heating, invented hot water. Go to the header tank and there's no vent pipe :/ just the feed, overflow and cold in.. Huh?!?!?

Hi all, Newbie here. Not good way to start :( I've a Vaillant ecotec and pressurised cylinder too. Just had plumber isolate the cylinder and still losing pressure around 0.2bar over 12 hours. Been many months. Started losing all pressure in a day recently, over time was getting...

Hello all Came across these two diagrams for the central heating system currently installed in the house. Its an old system design by the look of it, there doesnt seem to be any cold pipes fitted onto the radiators. It appears as if all the radiators are connected in series and only to...

Hi! New to this forum and in need of some advice, hoping some of the more experienced Plumbers and Heating Engineers would possibly be able to help me out. Been down to look at the father in-law's heating system a couple of times this month as the plumber he usually uses has been busy. I...

Good evening all, I currently have an issue with my heating system banging. First a technical overview for what it's worth. Sealed central heating system served from an ideal logic heat 12 boiler. This serves a megaflo HW cylinder and two heating circuits (upstairs/downstairs). Each circuit...

Hey guys, sorry for the intrusion, not a plumber myself but.. Can someone please identify this part of my central heating system, it has recently sprung a leak. Many thanks Alan.

Hi chaps, just thinking its the end of year now and I`ve been wondering if there`s any maintenance you`d recommend for heating systems? I have a combi, a worcester. I was thinking of draining the system down, flushing out the rads and refilling system with inhibitor. Would that be a good idea? I...

Alright guys? I don't do much installation, mainly breakdown/service work, so forgive me. I've gone to look at a mates boiler, old baxi solo which is corroded through and needs replacing. I was thinking of fitting a baxi ecoblue 15 erp as it doesn't require a pump overrun and it has rear flue...

Can all rediators in a system be controlled by temperature valves? What happens if all rooms are warm enough and therefore all valves closed?

Hi, The vent pipe on our heating system pushes hot water into the header tank , usually in the middle of the night and quite noisily. Is this normal? A couple of years ago we had a new boiler fitted. With the old boiler hot water was gravity heated. The new system is fully pumped with a Y...

could this be the valve for draining down the central heating system. There is a pipe outside the back door leading up to the airing cupboard and seems to go to this valve.