My plumber has recommended a Worcester-Bosch Greenstar 40 CDi combi condensing boiler for our biggish 4 bed home. Does anybody have any experience with this boiler? The spec is impressive but what about reliability? Also what price should you expect to pay for this boiler? Does anyone know the best(cheapest) source for this boiler?
Thanks for any help you can give.
Cheers
Jimbo

On Fri, 30 Sep 2005 22:56:03 +0100, Jimbo wrote:


My plumber has recommended a Worcester-Bosch Greenstar 40 CDi combi
condensing boiler for our biggish 4 bed home. Does anybody have any
experience with this boiler? The spec is impressive but what about
reliability? Also what price should you expect to pay for this boiler?
Does anyone know the best(cheapest) source for this boiler?
Thanks for any help you can give.
Cheers

The make is well regarded.
The 40kW (or thereabouts) is a huge gas rate and will require 28mm
gas pipework unless the meter is underneath the boiler.
It will produce a respectable flow of HW.

The minimum output of this boiler is likely to be around 10-15kW which is
probably more than is needed for your house heating except in
exceptionally cold weather. This means you will loose a bit of efficiency
on the heating side for the convenience of having such a good HW
performance. You might therefore consider the next size down as more
suitable.

--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html

"Ed Sirett" wrote in message
news
On Fri, 30 Sep 2005 22:56:03 +0100, Jimbo wrote:


My plumber has recommended a Worcester-Bosch Greenstar 40 CDi combi
condensing boiler for our biggish 4 bed home. Does anybody have any
experience with this boiler? The spec is impressive but what about
reliability? Also what price should you expect to pay for this boiler?
Does anyone know the best(cheapest) source for this boiler?
Thanks for any help you can give.
Cheers

The make is well regarded.
The 40kW (or thereabouts) is a huge gas rate and will require 28mm
gas pipework unless the meter is underneath the boiler.
It will produce a respectable flow of HW.

The minimum output of this boiler is likely to be around 10-15kW which is
probably more than is needed for your house heating except in
exceptionally cold weather. This means you will loose a bit of efficiency
on the heating side for the convenience of having such a good HW
performance. You might therefore consider the next size down as more
suitable.

You size combis by the DHW flowrate. The W-B is 16 litres/min, so the next
size down will give less than this - not wise. I would go for an Alpha
CD50 (5 year guarantee), which is about 19-10 litres/min flowrate and
modulates the CH output from 7kW to 30kW.

"Doctor Drivel" wrote in message
eenews.net...

"Ed Sirett" wrote in message
news
On Fri, 30 Sep 2005 22:56:03 +0100, Jimbo wrote:


My plumber has recommended a Worcester-Bosch Greenstar 40 CDi combi
condensing boiler for our biggish 4 bed home. Does anybody have any
experience with this boiler? The spec is impressive but what about
reliability? Also what price should you expect to pay for this boiler?
Does anyone know the best(cheapest) source for this boiler?
Thanks for any help you can give.
Cheers

The make is well regarded.
The 40kW (or thereabouts) is a huge gas rate and will require 28mm
gas pipework unless the meter is underneath the boiler.
It will produce a respectable flow of HW.

The minimum output of this boiler is likely to be around 10-15kW which
is
probably more than is needed for your house heating except in
exceptionally cold weather. This means you will loose a bit of
efficiency
on the heating side for the convenience of having such a good HW
performance. You might therefore consider the next size down as more
suitable.

You size combis by the DHW flowrate. The W-B is 16 litres/min, so the
next
size down will give less than this - not wise. I would go for an Alpha
CD50 (5 year guarantee), which is about 19-10 litres/min flowrate and
modulates the CH output from 7kW to 30kW.


And has the benefit of instant hot water due to the built in tank (just had
mine fitted)

Regards Jeff

"Jeff" wrote in message
. ..

"Doctor Drivel" wrote in message
eenews.net...

"Ed Sirett" wrote in message
news
On Fri, 30 Sep 2005 22:56:03 +0100, Jimbo wrote:


My plumber has recommended a Worcester-Bosch Greenstar 40 CDi combi
condensing boiler for our biggish 4 bed home. Does anybody have any
experience with this boiler? The spec is impressive but what about
reliability? Also what price should you expect to pay for this
boiler?
Does anyone know the best(cheapest) source for this boiler?
Thanks for any help you can give.
Cheers

The make is well regarded.
The 40kW (or thereabouts) is a huge gas rate and will require 28mm
gas pipework unless the meter is underneath the boiler.
It will produce a respectable flow of HW.

The minimum output of this boiler is likely to be around 10-15kW which
is
probably more than is needed for your house heating except in
exceptionally cold weather. This means you will loose a bit of
efficiency
on the heating side for the convenience of having such a good HW
performance. You might therefore consider the next size down as more
suitable.

You size combis by the DHW flowrate. The W-B is 16 litres/min, so the
next
size down will give less than this - not wise. I would go for an Alpha
CD50 (5 year guarantee), which is about 19-10 litres/min flowrate and
modulates the CH output from 7kW to 30kW.


And has the benefit of instant hot water due to the built in tank (just
had
mine fitted)

Regards Jeff

The resident lunatic here kept saying that the Alpha can't fill bath
properly. Is that so? Those I have seen fill 'em zippo.

What about the Worcester Greenstar Highflow 440, 20l/min, 60l storage ???
Opinions please.

Mark

I have one of these. Been installed for about 2 months now. Is great. No probs. Bought it through a local plumber who matched internet prices, and got the boiler for £1000, then went for the remote thermostat (no wires). Watch out for the flue pieces as these are expensive. A 1m section costs £45 including VAT, so siting your boiler miles away from a wall will cost you a small fortune in flue extensions alone.

Flow rates great, fills bath as quick as with my old conventional system, but showers are powerful and great. Quiet running and very simple to install. 22mm gas pipe is more than enough for this boiler, and commissioning is a piece of ****!

In article ,
Cordless Crazy wrote:
Flow rates great, fills bath as quick as with my old conventional
system,

Must have been a poorly designed one. 40 litres/minute at 60C is the norm
for a storage system. No combi can match that.

--
*El nino made me do it

Dave Plowman London SW
To e-mail, change noise into sound.

"Dave Plowman (News)" through a haze of senile
flatulence wrote in message ...
In article ,
Cordless Crazy wrote:
Flow rates great, fills bath as quick as with my old conventional
system,

Must have been a poorly designed one. 40 litres/minute at 60C is the norm
for a storage system.

It isn't.

In article ws.net,
Doctor Drivel wrote:
Must have been a poorly designed one. 40 litres/minute at 60C is the
norm for a storage system.

It isn't.

It is.

--
*I wish the buck stopped here. I could use a few.

Dave Plowman London SW
To e-mail, change noise into sound.