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I have a vented S Plan with a System Boiler stacked over the DHW Cylinder in a tight airing cupboard. The Cylinder is 1150 High and over it is a Vaillant Boiler. All is working perfectly with flow to a first floor shower just acceptable and we have plenty of stored hot water. But we are about to...

Do they work together? Part of sorting out the flow in my system was the fitting of a new pump. (The poor power flush filled the old one with iron filings but did cure the boiler noise). So I have a UPS2 which has the 'Variable Speed Mode'. The system is a conventional with loft supply tank and...

Earlier in the year I posted the end of a seven year saga to improve the heat in a vertical radiator. It turned out that it had been installed upside down with the diverter sitting in the top rail rather than the bottom beside the input flow. Once turned over it was lovely and warm. But a...

About 7 years ago I asked for help on flow in my system... https://www.diynot.com/diy/threads/bypass-valve-still-flowing-when-fully-wound-down.249725/ I lived with this last radiator giving mostly poor output but now all my other radiators have been renewed with brand new Drayton TRV4 valves...

I have a Neff Combination Microwave that has suffered a loose selection knob. The Oven is their B6774 built in. The (timer) selector knob has become very loose but I fixed it today. Both selector knobs are identical but I ordered one new one for about £30. The problem has become worse with it's...

I have a conventional (Loft Feed Tank and S Plan) system with a Vaillant 438 Boiler. I'm struggling to get flow to the final radiator. Most of the others have the adjustment valve virtually screwed down. The (new) boiler does not fire that often and probably only fires for 30 seconds. I'm...

Managed to get a matching five finger parquet in Merbau to lay in my kitchen so that it matches the rest of the ground floor in my 1956 house. Needed to repair a corner of the concrete floor where a boiler plinth had been. Rest of the floor had Marley tiles. Rest of house has the parquet glued...

I need to move (and replace) the Boiler from the (downstairs) kitchen to the (upstairs) airing cupboard. The cupboard is 500mm wide but 1200mm deep. Ceiling is normal 8ft. It seems sensible to have the hot water cylinder on the floor and the boiler above it. All the diagrams I've seen show the...

I'm not an expert but got called to the Mother-in-law today for "no water". It's a development of assisted flats, all single level. My wife confirmed the lack of water before I arrived so I started with the external mains tap (on the basis that the local youths might have interfered with it)...

I've posted before about getting something in a small airing cupboard and the general opinion was a combi like Vaillant 937 (with small store) The cupboard has a 450mm door but 570mm once inside. It's full height at 2400mm and a depth of 1200mm. I've had a quote for fitting and they want to...

This hijacking rule is a bit harsh! If you have the same problem is it not possible to tag along with the ebb and flow of the experts? I was on the post that had cold radiators down stairs but hot upstairs. Mine is getting worse and tonight I have very little flow upstairs. But worse than...

Is it possible to put an Immersion Cylinder in to a Combi System? I've had a look at the Valiant 937 with 2 small Stainless Steel storage vessels but they do seem small and you can't get an electric back up of an Immersion. It would be nice to still have hot water if the boiler fails. Any...

This is so similar to mine. Hot upstairs and cold downstairs (although I do have thermostat and valve on hot cylinder. I've been losing my radiators gradually. Early last week I had all cold downstairs. After reading advice on this forum I spent Thursday evening working my way round all...

I'm now thinking the 'Valiant ecoTEC Plus 937 Power Store' would be a good solution for my small Airing Cupboard. I'm hoping some heat leaks from it to warm the cupboard. But does any body else do a combi with a small water store? Or can you put a store in to a system (preferably with an...

I want to put everything in my airing cupboard. It's 1200mm deep but the door in is only 450mm wide. Once in the cupboard is 570mm wall to wall (and normal celing height). It only has the Cylinder in there at the moment (and pump pipes valves and wiring). The boiler is in the kitchen directly...

I'm struggling to keep both the heating and hot water system running. For some time the Lounge radiator has been slow to heat up. About 6 months ago I bit the bullet and got a plumber to investigate. He changed the pump (to a Grundfos 15/60 Super Selectric) and balanced the radiators. He had...