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Hi guys, first post and haven not seen anythoing similar, sorry if repeating. my central heating y system header and feed tank? works fine, although when water is emptied from the tank (hot) for shower bath etc... when refilling and heating it makes a squelching noise, only for a few min until...

Hi I wonder if someone can help when I switch my central heating on I get hot water flowing into my header tank it does not overflow and stays at the same level it is causing the beams in the loft to get wet from condensation I have had two plumbers look at it and both do not know what is...

I am about to move the water tanks in the loft in preparation for a loft conversion. They are in the middle of the loft at the moment & I'm moving them to one end. My question is about the cold water feed to the hot water tank. At the moment my hot water tank is fed from the cold water...

been meaning to share this fault for a while but i keep forgetting,getting a lot of these heaps with this fault it may flash a e34 fault code it may just present its self with dhw running hot and cold,e34 is ap switch stuck before changing parts remove the fan,you can then remove the metal...

Hi there i have a problem with a new woodburning stove with backboiler. It is on a gravity fed system but it doesnt seem to be working as it should. It will boil and release itself up to the header tank then repeat.There was an air lock in the circuit but i let it off at the hot water cylindar...

hi is it safe to run heating without pump working?it is heating rads but slowly,it is a back boiler. thanks Pete

I have a Fortec F4 combination Hot water tank in my airing cupboard which is dripping from the bottom. the water seems to be coming from the foam coating round the tank and not from any fittings, Is there anything i can do to repair the tank, ie add some central heating leak sealer to the...

I have just refurbished our bathroom. Everything is fine except the new basin mixer (I have very little flow on the hot). According to the tap specifications I need 0.2 bar for it to operate properly? I would have thought that the system that I have would cover that! It is a gravity fed hot...

Hi All I have an oil fired boiler that heats the rads and hot water with no problems. Because I live in the middle of nowhere and oil supplies can be a little expensive and unreliable because of the weather, I also have a wood burner with a back boiler connected to the central heating system...

Hi all I have a link up system with a dunsley neutraliser. This is connected to a sealed unvented hot water cylinder and a standard gravity fed and pumped central heating system. Both my back boiler and oil fired boiler feed to the neutraliser. The hot water system is protected by plenty of...

Hi all, I am after some advice on how to clear an airlock in a coal fired AGA water system. It has been behaving erratically, struggling to get up to temperature on the mercury thermometer and the body has been feeling too hot (hotter than usual). A friend has suggested that I have an airlock...

Hi Everyone...I am a M&E project manager (so no real gas experience) I have an issue on a poly-clinic coming up for handover, we have two LTHW boilers and two DHW generators, they are designed to operate as duty/standby controlled by the BMS, i.e. so in theory only one of each will work at any...

Hi, Let me start off by saying that I know very little about plumbing, so expect me to struggle a bit with some of the terminology and concepts :) Now, to my question: I have an unvented hot water system, with an immersion heater, in a small flat. Recently the tenant in that flat reported that...

i went to a job today with a fellow plumber and he said it was a sealed system and was asking for advice from his mate but i said it was a vented open system, and now im douting myself .basically it was a space saving tank with a biult in header couple of pumps, but air arrestor,auto air vent...

this house i went to the other day where they were complaining of low pressure the imersion tank all be it a primaster with a built in header tank bunged up with about five tubes of mastic to keep it going is only standing in a cupboard at the foot of the bath and the same height of the...

i have a client with a vented indirect hot water cylinder. below the gate valve on the cold feed from the header tank, is a tee which is the cold feed to shower pump for the shower mixer. can anyone tell me if this acceptable practice? i have read that it wouldn't be allowed on a direct hot...

Hi All I'm just looking for a little guidance. I know questions similar to this have been asked millions of times before but it seems there can be some quite conflicting answers. I am in the process of changing my hot water cylinder, the old one was gravity fed but the new one requires a...

About 3 years ago I fitted a biomass boiler to a small workshop to provide heating, the workshop is now downsizing and the owner wants to take the boiler to his house and replace his oil boiler with it, the main problem I am facing is the bio boiler is open vented and there is no room for a...

I have just moved into a bungalow which had some plumbing problems.Most of these were related to leaky joints.The system is powered by a Vaillant boiler plumbed to a pressurised heating circuit and a gravity feed hotwater system which I would guess is about 15 years old.The problem I am having...

In a large old house with 22 radiators with pressurized system need to replace the boiler and install controls. Plan on installing Worcester Greenstar 40 CDi or Vaillant ecoTEC plus 438 boiler. Thinking of Danfoss Tp9000Si Programmable Room Thermostat upstairs, Sunvic Select 307XL 3 channel...