Combi Boilers with good shower flow

[B+]

I need to replace my boiler which is currently a regular type with loft tank and hot water tank.

I am thinking of changing to a combi boiler but I am worried a. about reliability b. whether I will be able to get a

decent shower (mains pressure is good) and c my 22mm gas connection is shared with my cooker will, will that be a problem?

[KidKruger]

Should be OK.

I think it only becomes a problem when your trying to service like 3 bathrooms.

Combo technology is well tried and tested and improved over recent years, choose a good make and should last a couple of decades at least.

[diable rouge]

The only downside of a Combi I can think of is when using a shower and someone else runs a tap, say in the kitchen or even if a washing machine or dishwasher draws some water, you then get a sudden drop in pressure and water temp drops.

As KK says, not ideal for a busy, multi-bathroom house but good for flats or small occupancy houses...

[Otto2]

We have the latest Worcester Bosch Greenstar lifestyle combi boiler -- there is a small pressure drop when someone starts a second shower or a tap on full but then, it equalises. Sometimes have to adjust temperature but it easily handles that. https://www.worcester-bosch.co.uk/products/boilers/lifestyle

[JohnL]

diable rouge Wrote:

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> The only downside of a Combi I can think of is

> when using a shower and someone else runs a tap,

> say in the kitchen or even if a washing machine or

> dishwasher draws some water, you then get a sudden

> drop in pressure and water temp drops.

> As KK says, not ideal for a busy, multi-bathroom

> house but good for flats or small occupancy

> houses...

All our flats have to use thermostatic showers - problem with them is you can't have a really hot bath if it's a dual bath/shower.

[B+]

Thank you for your replies, the more I research boilers the more questions and problems I seem to find!

I will have to keep my 34 year old boiler going a bit longer until I can make my mind up.

[diable rouge]

JohnL Wrote:

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> All our flats have to use thermostatic showers -

> problem with them is you can't have a really hot

> bath if it's a dual bath/shower.

Hotels have them, stops people from accidentally scalding themselves, I thought most have an override facility, e.g. press a button to turn the valve more to get hotter water, and when the valve is switched off the safety button re-engages...

[JohnL]

diable rouge Wrote:

-------------------------------------------------------

> JohnL Wrote:

> --------------------------------------------------

> -----

>

> > All our flats have to use thermostatic showers

> -

> > problem with them is you can't have a really

> hot

> > bath if it's a dual bath/shower.

>

> Hotels have them, stops people from accidentally

> scalding themselves, I thought most have an

> override facility, e.g. press a button to turn the

> valve more to get hotter water, and when the valve

> is switched off the safety button re-engages...

There is an override facility - 38 degrees is normal then the override will allow it to go hotter.

But you can't get the extremely hot you do out of the non thermostatic taps - I'd say 50 degrees is max. Good if children around obviously.

Personally I'd prefer the bath taps had no control but the shower did (this would be considered a scald danger though)

[diable rouge]

JohnL Wrote:

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> But you can't get the extremely hot you do out of

> the non thermostatic taps - I'd say 50 degrees is

> max. Good if children around obviously.

Your Combi may have a max temp for heating the water, which can be adjusted, your user manual should tell if you have this facility and how to change it if it's been set too low for your tastes...