Storage combi boilers

[Gasmk1]

for me if you have the space for it yes they are about twice the size in in depth and slightly wider, also the viesmann has a great weather compensation system for the price of a sensor approx £35.00

 

[Gemma]

Space for the boiler is one thing we do have, the current boiler is in a deep cupboard over the stairs.

 

[townfanjon]

Gemma , you will not go wrong with a 111 , best storage combi out there .

 

[gmartine]

I'd read on a website's spec the 111-w was suitable for "low pressure" areas, how can that be? Here it is...

Viessmann Vitodens 111-W 35kW Storage Combination Boiler Natural Gas ErP | Boilers

 

[Old Account]

Or cast iron, they're a nightmare for furring up and reducing flow rates.

Cast iron? Never came across cast iron yet scary Rubbish though

 

[Aire]

Yeah I've came accross a few. My parents had an old cast iron main, furred up that bad they was getting around 9 - 10 litres a min of flow. New main put in and now getting 22, massive difference.

 

[Harvest Fields]

You may have answered this already, if so then sorry. What size house do you have and how many bathrooms/baths/showers?

 

[Gemma]

4 bed (but a small 4 bed, size of a usual 3 bed I’d say), one bathroom with shower over the bath, possibility of adding an en suite in future but I imagine everyone will want to use the ‘proper’ shower cubicle then and the shower over the bath will be more or less redundant.

 

[Harvest Fields]

You could fit a large combi but not ideal really. The veismann May be a better option as it has a much bigger store. Personally I would try and fit an unvented cylinder if you can find space somewhere.

 

[Gemma]

Thank you, I'm still trying to get my head around how the storage combi works to be honest. Once the inbuilt tank is depleted it switches to a 'normal' combi, but what if the water in the tank is not up to temp for some reason - it bypasses it? It's only a 46l tank but it says its the equivalent of a 150l unvented - is that because of mixing with cold water? Just trying to understand it.