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Thanks for reply elkato531 sorry didnt realise I had drawing them wrong way round..I am fine with the oil boiler side of the heating system the problem is because it is a duel system will plumbing like this affect the back boiler plumbing in anyway..I just want to make sure if I leave the back...

Hi flameport thanks for reply here is the drawing with the back boiler..hopefully you will be able to make it out not very neat..the hot water heats from the back boiler in gravity and drops from the attic to feed cylinder..there is a pipe stat on the return to the back boiler at the coil of the...

This is my proposed way of plumbing any advice?

This is the current way of the system

Hi all...I need a bit of advice on a central heating job..the job is for a relitive who gave me a call wondering if I could move an oil boiler from the utility room of his house to the corner of the garden he wanted to buy a new condensing oil boiler that can be fitted externally for this..I...

I understand the valve has to b open to feed the heating system and can't b turned off I just think it is handy for maintenance...if I was to change the system to a pressurised system could I put the expansion vessel in the attic as long as there is no valves between the boiler and the vessel...

Thanks for your reply's...dp the valve was only put in for future draining down it's a full bore gate valve on the feed to the heating system from the f and e shouldn't do any harm...if I was to pressurise the heating system for the time being until I decide to put in the back boiler could I...

So the feed and vent can only be as much as 150mm apart but Does the feed and vent have to tie in on a horizontal piece of pipe like in the drawing I understand I can take the vent from highest point but would the feed be ok vertically T'd in

Thanks everyone for your reply's...45yearsagasman thanks for your drawing I could put the pump in the airing cupboard the only thing is I have the down stairs return T'd in after where it says in the drawing there should not be any more is there another way around this without pressurising as I...

I am in Northern Ireland the heating systems are usually oil boilers in the area I'm from...I think my easiest way out of this is to T the feed and vent together in the attic and keep the pump on the return as in picture am I right to think this?

It's an oil boiler 70/90 I think not sure of the make if u need to know can find out

It's an oil boiler it can be sealed but wanted to keep it opened vented incase in the future I wanted to put in a back boiler stove

Thanks for your replys..I see that I should have my feed and vent closer to the boiler before the pump with it on the flow rather than the return as I have it...is there any other way of doing this rather than taking another 2 pipes to my boiler because it is situated outside and would be a lot...

Hi everyone I'm Scott..I recently bought a house and decided to re plumb myself..fired up the heating for the first time today and found that the hot water was pumping out of the vent pipe in the attic into the f and e tank I thought the speed of the pump was mayb to high so ran it on speed one...