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If the expansion vessel for a unvented hot water cylinder was fitted to the hot outlet pipe instead of the cold main going into the cylinder would this pose any problems. As far as I can see it will still allow expansion of the heated water

Were currently working in an old farm house and we have to add to the heating circuit, on the existing circuit there is 21 rads and a hot water cylinder. Now the boiler is sited approx 5m away from the airing cupboard where the C/H pump (25/60) and zone valves are, everything in there is fine...

I got called to a faulty shower today, Existing shower pump has gave up. The pump that's fitted is a salamander negative pressure 1.5 bar unit. Now the pump sits below the storage tank by at least 2.4m on the floor below, The shower head is above pump height but below the storage tank, Am...

On a large property say 20 rads with approx 30kw heat load what size pump would be required to allow 30kw to be moved from the boiler. Would a standard 15-50 cut it here ?

Is it possible to fit an additional pump to a system boiler if the boiler is fitted to a large property with lots of rads. The boiler in question has a 15-50 I believe and we're looking at fitting a 25-80 also. Does the internal pump work along side the new pump if so.

Can Hep2o be used for a secondary return in a domestic property, I had to first fix a rather large property today and all pipe work is Hep with copper on show. I had a look over the drawings but nothing said about copper for the return circuit, I thought plastic wasn't allowed on the H/W...

I'm needing to stick an additional radiator in one of my rentals, there's 10mm pipe running past the intended location of new rad under the floor. This 10mm feeds a 1000x600 K2 (1.7KW) Can I cut into this to add a 500x600 K2 (800W). The 22mm flow and return is is a good distance away...

I was just in for my 1st day of CCN1 today and few things the trainer said contradicted what my gaffer has told me and done in the past. Namely the topic title, The trainer said this is mandatory and how could you issue a safety cert without carrying out a TT. So all these CP12's my boss...

When recharging an expansion vessel today it wouldn't hold air pressure so I assume it was leaking into the heating circuit. When I first tried the vessel no water was coming out valve but there was no air either, I attached my pump and blew a lot of water out but now the vessel is empty but...

Can these new style Grundfos pump heads be used in a combi boiler with the old style Grundfos pump. I always thought not but I over heard someone in Plumb Center today saying he was away to fit it to his Vokera Unica. (Pump head only)

One of my tenants has a fault with there gas cooker, 3 rings work and 1 doesn't. What classification would this be. AR ?

I'm manning the phone tonight and received a call from one of our regular customers. The pilot appears to be going out a few times per day, I'm told it lights first time all the time. The customer couldn't be any more specific than that, he did say this has only happened since we serviced...

Following from a previous thread, my next door neighbor has got his boiler working again after his flue problems. (he's just moved in) He's been back at my door asking about the operation when on hot water, I went and had a look this evening (I'm not GS so didn't open anything up, my boss is...

My next door neighbor just chapped the door asking me to look at his boiler as someone from a large firm has been out and turned it off. The flue turret that fits to the top of the boiler is split below the FGA nipple, is this categorised as AR, it's on the air inlet side of things ? Thanks

Is it acceptable to use a twin cooker outlet to run a ceramic electric hob, double oven and cooker hood. The 45a switch will positioned next to the electric hob, the double oven is across the room in a tall oven housing, approx 3m away from the switch. It's 6mm from the 45a switch to...

Quick query chaps, My boss (I work with a 1 man band) has asked me to price a job up over the weekend as he thinks it will be good experience for me, the details are below to the best of my knowledge. Remove Worcester High Flow 3.5 and vertical flue from cupboard and install new boiler...

Is there a ball park figure for servicing a Baxi 552 including land lord cert. We priced one the other day and were told we were way to dear !!

Quick question, We fitted a external 10l expansion today to system boiler (the one at the back of the boiler leaked when the air valve on top was pushed) The new expansion vessel was preset to 1.5bar I think, the guy I work with said this was too much and reduced to 0.7 I believe, If this...

Quick question regarding an Ideal Mexico super 2 boiler, The boiler is in a compartment at the top of the landing, the cupboard door has a vent top and bottom (Bottom vent is large) this vents into the landing, now having read the old Corgi book it says there should be another vent in the...

I've got a problem with a kitchen sink, when the washing machine empties it fills up the sink bowl, the sink is not choked as when the sink is filled and emptied it runs away perfectly. The trap is one of the McAlpine W/M WM11 traps. I fitted the kitchen sink with plumber I work with but...