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Yes 15mm. Doesn't matter if it's chrome finish or brass.

No air gets into the system. You know when you have a leak straight away instead of when all your radiators have rusted through. If you have a major burst the header tank will happily keep pumping water into the house and wreck the house. I've see that. A burst pipe while the lady was away over...

Plate heat exchanger must have been bad if it needed a new one. Sounds like the diverter valve isn't working properly. The boiler should fire when tap is turned on.

Sealed system is better. vented systems belong to the dark ages and have no place in a modern heating system. Conversion kit costs about £80 plus fitting which shouldn't take more than about 1 hr.

I can believe there are cross bricks as there seem to be end bricks showing in the brick layout when viewed from the outside. Looking at the other walls the brick arrange is standard long side brick ... all along the wall. So is it ok to insulate the cavity on the 3 other walls as the other...

1925

A while ago I had british gas around to survey for loft and wall insulation. They did the loft insulation but wouldn't do the cavity because the construction of the rear wall was different either solid wall or something. Guy said something like there were bricks going across the walls. He...

Ultrastore as next best it has two 25 litre tanks in the back. Buy with lifetime warranty 15 years piece of mind.

glow worm ultrapower a cross between combi and unvented cylinder. Will outperform a 300 litre cylinder and all in the nice one package. Job done.

Yes upgrade. An alternative is to put the non return valve for the unvented cylinder just after the house stop valve. The expansion vessel of the unvented cylinder will therefore balance out any sudden opening and closing of a 2nd outlet. Also fit aerator taps to sinks as these use less...

Sounds like the gas isn't igniting straight away until it has to got explosive amounts. Perhaps too much pressure at the burner. I would get someone else in.

Tell her no. It may look good but don't ever expect to get it up and down the same should it ever need to come up. True I'll be only too glad to pull it up for you or you can have someone do it for you. But I won't be putting it back down. I haven't got a day to waste trying to get it to...

Got the same on my chrome. I've had to stop using it for youtube and go back to IE which seems fine.

My PC regularly does this. One minute it's invalid next day it's not. It's perfectly valid windows.

Most likely cause would you have a leak somewhere possibly under the floor or a dripping tap. Or depending on the layout your tank and piping is acting as a heat source with the coil and is feeding the central heating circuit with some heat.

Keep back boiler. Unless it's leaking has few parts to go wrong and will go on forever and never need any parts. My mums back boiler is 40+ years old and looks like new inside. You can replace radiators and add thermostatic valves wall thermostat to existing system and keep back boiler. A...

Sounds like you have a leak in the plate heat exchanger and low water pressure in the house.

Yes you can do it. Put a full bore lever valve on.

Atag with recovery unit built in. ECX I think it is. Parts available next day by courier.

I tend to use the jd speed fit which is fast and can be umounted and mounted again without a problem and without any extra tools.