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My old house had a concrete floor downstairs and the pipework for the radiators came down in the corner of each room either in neat plastic trunking or was boxed in and painted the same colour as the walls. It would have been great to have the pipes totally hidden, but the amount of effort...

We moved into a 4-bed detached house (already fitted with a water meter) last year and our monthly water bill (which has now settled at around £30/month) is around half the normal monthly water rate for a house of that size in our area. We're careful with our water use, but we're not anal...

With the Worcester Bosch 'Optimiser' timer stats, you set it to come on 1 hour before the time you would like your house to be your ideal temperature and it learns how late it can come on to achieve this, therefore (theoretically) saving money. ie. if you want the house to be 19oC at 7am, you...

A powerful combi like that is certainly going to give you the best chance at supplying a couple of hot water outlets at once with a good flow, but the problem is that you won't know just how well until it's in ! If you're planning another bathroom at some stage, then it would make sense to...

..or just use the dishwasher ? :roll:

Also - see FAQ no.8 in the sticky above !

Could be sludged up ? One option is to take the radiator outside and flush it through with a hosepipe, but how effective this is may depend on how badly it's sludged up. You can also buy chemical treatments to introduce into the whole system that will help, although I'm not sure what the...

My plumber was happy to do it that way but you may find that many won't be, so you may end up limiting your choice of plumbers willing to take on the job. I'm surprised that your plumber was (seemingly) marking up the price so much, especially when they know the first thing most people would...

Fair point - I'll report back in a few year's time ! :)

I went for the Worcester Bosch 37CDi combi for my 4-bed detached (with bathroom, en-suite shower-room) Heating shouldn't be a problem - our's certainly copes well with our 15 radiators, although you'd be advised to do your calculations properly or get hold of someone who can do that for you...

The WB 24 and 28 combis will probably give a very similar, if not identical, output to the central heating. The main difference will be that the 28kW model will give you a higher hot water flow-rate, so your decision should be based on whether you want, for example, the bath to fill up...

I switched from an ancient floorstanding conventional boiler to a (fairly powerful) combi last summer and don't regret it for a second - we gained extra storage space in the loft by removing both tanks and also gained useable space in two of the bedrooms by removing the airing cupboard. Other...

I'm guessing that the above '6 inches' was presuming you were coming out of the wall ? The fixing instructions for the radiator will tell you how far from a plastered wall you'll need to measure out to drill holes in the floor, so I'd be tempted to wait until the plastering has been done...

Have the radiators been properly balanced ? If the cooler rad is furthest from the boiler, then the system may need balancing - see FAQ 2 above.

If you don't currently have a convenient drain-off point for your CH, then you might want to consider replacing a standard lockshield with one with a built-in drain-off point for future use. In the meantime, check the boiler for drain-off points - this will allow you to empty most of the...

You'll certainly have more control over the heating if the rooms are getting too hot and should allow you to select a lower temperature in each room. They're unlikely to make rooms any hotter, unless your current valves are stuck down in some way and restricting the flow. It would make sense...

As far as Worcester Bosch's usage of the terms go, a 'system' boiler can only be used on a sealed/pressurised/unvented system and a 'regular' or 'conventional' boiler can only be used on an open/vented system. If I've understood this correctly and your current system is pressurised, then...

Most combis available will be powerful enough to provide adaquate central heating for a house of that size, so (as mentioned above) you'll need to decide on your hot water requirements. These are the kinds of questions you need to answer : How many outlets do you have (bathroom/kitchen...

P.S. Some unvented systems utilise separate expansion vessels, so by the sounds of it WB are implying that you could do away with that if you chose one of their system boilers, as they they are inbuilt.

'System' boilers are used on unvented/pressurised systems (like yours) and 'conventional' or regular boilers are used on vented systems (where you have an expansion tank in the loft)