new combi boiler

[bobby2183]

hi guys i need some advice, i am after a new combi boiler my current 828 turbomax does not provide the amount of hot water i need as i have a large family with 2 bathrooms. Someone has suggested the worcester 440cdi floor standing? your advice would be much appreciated

 

[Agile]

The 828 is a reasonable output and fairly recent combi giving about 11 li/min.

A storage combi like the 440 will give about 20 li/min but ONLY until the store is depleted and thats in just a few minutes.

My advice is to have a storage cylinder which is heated by your existing boiler. That could deliver 20li/min for 15 minutes if it was a 300 litre.

Tony

 

[Deleted member 105431]

also look at the vaillant ecotec 937.

 

[bengasman]

If you insist on changing your boiler, I would go for the 42 cdi in stead of the floorstanding 440; would safe you a lot of dosh for similar performance.

 

[mehran]

get a rinnia 26i water heater. will do 20l/m and never run out plus can get some nice control that will let you do some cool stuff like auto fill a bath. just type in what temp and how many liters and walk away

then you can get a nice heat only boiler which best matches your CH need better then your boiler you have now.

 

[bengasman]

get a rinnia 26i water heater. will do 20l/m ...

That's a water heater, not a combi; you'd have a great shower, but will be bloody cold in winter.

 

[mehran]

g
then you can get a nice heat only boiler which best matches your CH need better then your boiler you have now.

i think you missed that bit i would recommend a viessmann system boiler.

 

[gas4you]

Well how about the rinnai twin flow? Water heater and an ATAG with a different badge.

Might well have been what mehran was thinking of

 

[mehran]

yeh like the twin flow would work but i think the atag boller maybe a bit over powered. but on the other hand it does modulates down well.

 

[bengasman]

g
then you can get a nice heat only boiler which best matches your CH need better then your boiler you have now.

i think you missed that bit i would recommend a viessmann system boiler.

Did miss that as it happens. One little problem remains though; 56 kw would not leave a lot of room for another appliance like heat only boiler on meter capacity, especially not as most people would also have a gascooker, and a 6m3 meter.

 

[mehran]

you are right...but rinnia have thought of this. you can fit a cut of flow switch to the cold going in to the water heater. when a hot tap is opened it cuts the heating off like a combi. so they cant be on at the same time. leaves room for your hobs and such.

this method was approved by corgi when they still meant something

 

[gas4you]

ATAGS don't modulate down. They modulate up. It makes a world of difference to system efficiency and automatic range rating