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Hadn't thought of doing it that way, thanks a lot. I think that would work quite well. I'm starting Sunday. Will take some pics along the way.

Cheers wasn't aware of this. I'll drain the system at the stage needed in this case. Was only a "nice to have" thing. Yes have inhibitor, this is in step 4 of my post. Plumber wants £300. He's got to cover his costs and make a bit of profit, but when I have all the materials and the brain...

I need to move a radiator and just wanted to share my plan. I'm able to solder end feed properly and have installed new rads before, but I've left teeing them into the existing circuit to my plumber, purely to avoid draining the system. I have a radiator currently on a kitchen wall. I would...

The house is quite a nice Edwardian detached, with many original features. I couldn't bring myself to get rid of them. I think what might happen is they reinstate two original pots for the working flues, then install two appropriate venting cowls for the empty flues.

£600. Everything I will do in this install (like the last install) will be by following the appliance's manufacturer's guidance and by following the latest revision of document J. Energy security in this county has a very bleak future, so I'm doing what I can to try and mitigate against all the...

Haha wonder no more my friend, they're in my garden. Update as of this morning. I'm requesting the pots be reinstated with the cowls fixed to the top. I had bought them specifically to fit these pots after all. I still don't know how much rain would actually end up down the chimney had I left...

Absolutely, but that gap sits sideways on. The open pots sit facing the sky like an open bucket. My cowls have a large overhanging hood and the flaunching slopes away from them. I figured this must be enough to keep most of the rain out, but I'm not confident enough to say for sure hence...

Thanks Stuart, appreciate the detailed reply. Two flues as you can see. The one closest in the picture doesn't serve an appliance and has no liner. It serves an open and unused bedroom fireplace. I had the cowl put on to allow that flue to breath. The liner is in the rearmost flue in my...

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Again, happy to be schooled but how so? As in - how would the water track into the cowl? If mine let in the Niagra Falls, the open pots to the right must let in the Pacific Ocean.

The speculation about the mix on the flaunching. Possibly so re the fillets. However, the course of bricks I mention have a drip groove. Stack was sound when inspected and now all are fully opened and venting, so good air flow. I still don't understand how these cowls are going to admit more...

A lot of speculative commentary there. In my case all flaunching was removed. The mix was absolutely fine. If you look down the stack in my second picture you will see a course of protruding bricks - these have a groove on their underside to allow water to drip away from the chimney face. They...

A terminal is a collective term to describe an area at the ending of something, in this case a cowl. I am more than happy to be schooled on this, but I'm just trying to understand how the set up will allow more water in than usual. The hood on the cowl is wide and the flaunching slopes away -...

Hmm I'm not convinced.

They are cowls and they were marketed especially for my pots. The flaunching mix used was a 3:1 mix (no aggregate added). Genuine question so that I understand - how would rain to enter the stack? Wind driven rain I'll accept as you'd get on any pot, but are you saying it would be worse in my...

The roofers working on our house removed 4 pots and fitted 4 cowls. Fitting them was my request as they will service working flues and keep unused flues ventilated. I also had liners put down. The question on my mind is this -- is this method of fixing acceptable? Seems strange them being...

No, often up that way walking but I live in South Derbyshire.

I had a long thought about all of this and decided to remove the fireplaces and replace with burners (which I'd used for a number of years before moving here). The fireplaces I took out were not original and the hearth tiles long since taken up, so no loss of history.

Hi all, I have two open fires which are used in the Winter. Both leak gasses into the above bedrooms (which have open and unused fireplaces). I am having cowls fitted to the tops of all pots and liners put down the working flues to ensure all gases are safely extracted to the atmosphere. My...

Just as an update, I bought the Titan vacuum and used it to vac out as far as the hose went. I must have shifted 30-40 litres. It was a very unpleasant job, but I was impressed with the Titan. The water level dropped in the gulley but was still high so I felt a bit defeated. The next morning...