Cascading rigs or frames for two 40 kW Worcester boilers

LordWest · Feb 25, 2020

Hello,

This is in relation to replacing a 50 year old 68kW boiler with two 40kW Worcester boilers for a residential blocks's (12 flats) centraol heatign only. Are you aware of any cascading rigs or frames that would be suitable? King of Pipes had suggested the Ideal Evomax heder kit, which seems great, but I woudl prefer to go with Worcester.

Thanks

ShaunCorbs · Feb 25, 2020

No cas kits for the cdis but have a look at the Worcester 162s they Make them for them

LordWest · Feb 25, 2020

ShaunCorbs said:
No cas kits for the cdis but have a look at the Worcester 162s they Make them for them

Thanks. Unfortunately the GB range starts at 50kW and this is a bit more per boiler than I am looking for.

ShaunCorbs · Feb 25, 2020

LordWest said:
Thanks. Unfortunately the GB range starts at 50kW and this is a bit more per boiler than I am looking for.

get your installers to design there own tbh not hard it’s only a llh or plate

Last Plumber · Feb 26, 2020

Have a look at Vaillant.

LordWest · Feb 26, 2020

Last Plumber said:
Have a look at Vaillant.

Thanks. I took a look them but the cascadign units are only for hte commercial range that starts from 50kW, and that is likely excessive for my purposes.

Last Plumber · Feb 26, 2020

LordWest said:
Thanks. I took a look them but the cascadign units are only for hte commercial range that starts from 50kW, and that is likely excessive for my purposes.

Why don't you fabricate your own? Or have someone else do it for you?
It's only a frame made to mount the boilers next to each other.
Box section steel or angle iron will do it.

Gasmk1 · Feb 26, 2020

look at viessmann boilers

LordWest · Feb 26, 2020

Gasmk1 said:
look at viessmann boilers

I will take a look, thanks.
[automerge]1582729092[/automerge]

Last Plumber said:
Why don't you fabricate your own? Or have someone else do it for you?
It's only a frame made to mount the boilers next to each other.
Box section steel or angle iron will do it.

We may end up doing this. thanks

king of pipes · Feb 26, 2020

Why do you prefer Worcester ? May i ask

LordWest · Feb 26, 2020

king of pipes said:
Why do you prefer Worcester ? May i ask

Worcester has a reputation of making good boilers and because we already have one for hot water it woudl simplify things to have boilers from the same manufacturer. Nonetheless, I am not set on them and open to other ideas.

ShaunCorbs · Feb 26, 2020

Have a look at Viessmann 200 series

OffshoreGas · Feb 26, 2020

LordWest said:
Worcester has a reputation of making good boilers and because we already have one for hot water it woudl simplify things to have boilers from the same manufacturer. Nonetheless, I am not set on them and open to other ideas.

I don’t think you’ll find many advocates of Worcester in heating these days. The domestic units at least have had a Lot of issues.

@ShaunCorbs is there much science to designing a low loss header for a system of this size?

ShaunCorbs · Feb 26, 2020

OffshoreGas said:
I don’t think you’ll find many advocates of Worcester in heating these days. The domestic units at least have had a Lot of issues.

@ShaunCorbs is there much science to designing a low loss header for a system of this size?

no tbh something small like that I would get a pre made one and size to the kw rating that I work out

king of pipes · Feb 27, 2020

Still Evomax for me Lord Worcester are not the best boilers out there by far now, for a quick turn around this is well worth considering talk to them get a quote . Regards kop

Last Plumber · Feb 27, 2020

Have a look at Vaillant domestic. Use there smallest LLH.
This is all personal opinion built on individual experience as always on a forum but I don't think you can beat Vaillant.

LordWest · Feb 27, 2020

Last Plumber said:
Have a look at Vaillant domestic. Use there smallest LLH.
This is all personal opinion built on individual experience as always on a forum but I don't think you can beat Vaillant.

Their domestic range maxes at 35kW, when ideally I woudl prefer 40kW, because if one of the two 40kW boilers breaks down, a single 40kW boiler will be able to better handle the communal heating requirements for the 12 flats. We have a different boiler for hot water.

OffshoreGas · Feb 27, 2020

LordWest said:
Their domestic range maxes at 35kW, when ideally I woudl prefer 40kW, because if one of the two 40kW boilers breaks down, a single 40kW boiler will be able to better handle the communal heating requirements for the 12 flats. We have a different boiler for hot water.

If you’re worried about uptime why not fit 3 domestic boilers rather than 2 slightly larger commercial boilers?

Last Plumber · Feb 27, 2020

LordWest said:
Their domestic range maxes at 35kW, when ideally I woudl prefer 40kW, because if one of the two 40kW boilers breaks down, a single 40kW boiler will be able to better handle the communal heating requirements for the 12 flats. We have a different boiler for hot water.

Yes but the 48Kw modulates down a good way so why not two of those as I suggested before.

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Cascading rigs or frames for two 40 kW Worcester boilers

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